Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

Eidetic memory




Great article about the shamed plagiarist Kaavya Viswanathan (teen Harvard author) and eidetic memory, written by Joshua Foer - yes, brother of Johnathan. Clever bunch. Interesting article for Slate magazine.


No one has a photographic memory


The accused Harvard plagiarist doesn't have a photographic memory. No one does.

By Joshua Foer
Thursday, April 27, 2006

Kaavya Viswanathan has an excuse. In this morning's New York Times, the author of How Opal Mehta Got Kissed, Got Wild, and Got a Life explained how she "unintentionally and unconsciously" plagiarized upward of 29 passages from the books of another young-adult novelist, Megan McCafferty. Viswanathan said she has a photographic memory. "I never take notes."

This seems like as good an opportunity as any to clear up the greatest enduring myth about human memory. Lots of people claim to have a photographic memory, but nobody actually does. Nobody.

Well, maybe one person.

In 1970, a Harvard vision scientist named Charles Stromeyer III published a landmark paper in Nature about a Harvard student named Elizabeth, who could perform an astonishing feat. Stromeyer showed Elizabeth's right eye a pattern of 10,000 random dots, and a day later, he showed her left eye another dot pattern. She mentally fused the two images to form a random-dot stereogram and then saw a three-dimensional image floating above the surface. Elizabeth seemed to offer the first conclusive proof that photographic memory is possible. But then in a soap-opera twist, Stromeyer married her, and she was never tested again.

In 1979, a researcher named John Merritt published the results of a photographic memory test he had placed in magazines and newspapers around the country. Merritt hoped someone might come forward with abilities similar to Elizabeth's, and he figures that roughly 1 million people tried their hand at the test. Of that number, 30 wrote in with the right answer, and he visited 15 of them at their homes. However, with the scientist looking over their shoulders, not one of them could pull off Elizabeth's trick.*

There are so many unlikely circumstances surrounding the Elizabeth case—the marriage between subject and scientist, the lack of further testing, the inability to find anyone else with her abilities—that some psychologists have concluded that there's something fishy about Stromeyer's findings. He denies it. "We don't have any doubt about our data," he told me recently. Still, his one-woman study, he says, "is not strong evidence for other people having photographic memory."

That's not to say there aren't people with extraordinarily good memories—there are. They just can't take mental snapshots and recall them with perfect fidelity. Kim Peek*, the 53-year-old savant who was the basis for Dustin Hoffman's character in Rain Man, is said to have memorized every page of the 9,000-plus books he has read at 8 to 12 seconds per page (each eye reads its own page independently), though that claim has never been rigorously tested. Another savant, Stephen Wiltshire, has been called the "human camera" for his ability to create sketches of a scene after looking at it for just a few seconds. But even he doesn't have a truly photographic memory. His mind doesn't work like a Xerox. He takes liberties.

Photographic memory is often confused with another bizarre—but real—perceptual phenomenon called eidetic memory, which occurs in between 2 and 15 percent of children and very rarely in adults. An eidetic image is essentially a vivid afterimage that lingers in the mind's eye for up to a few minutes before fading away. Children with eidetic memory never have anything close to perfect recall, and they typically aren't able to visualize anything as detailed as a body of text.

In every case except Elizabeth's where someone has claimed to possess a photographic memory, there has always been another explanation. A group of Talmudic scholars known as the Shass Pollaks supposedly stored mental snapshots of all 5,422 pages of the Babylonian Talmud. According to a paper published in 1917 in the journal Psychological Review, psychologist George Stratton tested the Shass Pollaks by sticking a pin through various tractates of the Talmud. They responded by telling him exactly which words the pin passed through on every page. In fact, the Shass Pollaks probably didn't possess photographic memory so much as heroic perseverance. If the average person decided he was going to dedicate his entire life to memorizing 5,422 pages of text, he'd probably also be pretty good at it. It's an impressive feat of single-mindedness, not of memory.

Truman Capote famously claimed to have nearly absolute recall of dialogue and used his prodigious memory as an excuse never to take notes or use a tape recorder, but I suspect his memory claims were just a useful cover to invent dialogue whole cloth. Not even S, the Russian journalist and professional mnemonist who was studied for three decades by psychologist A.R. Luria, had a photographic memory. Rather, he seemed to have implicitly mastered a set of mnemonic techniques that allowed him to memorize certain kinds of information.

Viswanathan is hardly the first plagiarist to claim unconscious influence from memory's depths. George Harrison said he never intended to rip off the melody of the Chiffons' "He's So Fine" when he wrote "My Sweet Lord." He had just forgotten he'd ever heard it. And when a young Helen Keller cribbed from Margaret Canby's "The Frost Fairies" in her story "The Frost King," Canby herself said, "Under the circumstances, I do not see how any one can be so unkind as to call it a plagiarism; it is a wonderful feat of memory." Keller claimed she was forever after terrified. "I have ever since been tortured by the fear that what I write is not my own. For a long time, when I wrote a letter, even to my mother, I was seized with a sudden feeling, and I would spell the sentences over and over, to make sure that I had not read them in a book," she wrote. "It is certain that I cannot always distinguish my own thoughts from those I read, because what I read become the very substance and texture of my mind."

Psychologists label this kind of inadvertent appropriation cryptomnesia, and have captured the phenomenon in the laboratory. In one study, researchers had subjects play Boggle against a computer and then afterward try to recreate a list of the words they themselves found. Far more often then expected, the researchers found that their subjects would claim words found by the computer opponent as their own. Even if cryptomnesia is a real memory glitch that happens to all of us from time to time, however, it's hard to figure how it could lead to the involuntary swiping of 29 different passages.

Then again, who knows, maybe Viswanathan really does have a photographic memory. She could be the first (or second). Earlier this year, a group of memory researchers at the University of California-Irvine published an astonishing article about a woman called AJ who can apparently remember every day of her life since childhood. Such people weren't supposed to exist. Her case totally upends everything we thought we knew about the limits of human memory. The scientists even had to coin a new name for her disorder, hyperthymestic syndrome. If Viswanathan really wants to stick to her story, I know a few scientists who'd probably like to meet her. She might even be able to get a syndrome named after her.

Art vs Science: Let's Call the Whole Thing Off!


Above, Einstein plays the violin.This article was originally published in the Education Guardian.

Why are we still having the old arts vs science debate?


Which branch of learning, in the last century, has delivered the ultimate recipe for adventure; has expanded our intellectual horizons, quickened our understanding of the world around us, and opened our eyes to the astounding possibilities of the past and the future? Piece of cake: the answer is mathematical physics.

A century ago, the Milky Way was all there was. It took a great intellect with a great telescope to take a closer look at a smudgy object called Andromeda and realise - and what a thrill that moment must have been - that Andromeda was not a star, or a nebula, at all. It was another galaxy, another entire cluster of stars, more than two million light years away.

In the course of the next few decades, Edwin Hubble and later astronomers discovered that Andromeda was only one of millions of galaxies, each containing billions of stars.

In the course of the following few decades, mathematical physicists morphed into experimental and theoretical physicists, geophysicists and astrophysicists; they started with the very small and confirmed that the universe was indeed made of atoms - the idea might be ancient, but the confirmation is hardly older than Einstein - and then they looked at the whole cosmos and realised that they didn't know the half of it: 96% of all the universe seemed to be made of some unknown stuff, and all the stars, planets, moons, asteroids, comets, continents, countries, parish councillors and coin-operated vending machines in 100 billion galaxies across 13 billion light years of space added up to a trifling 4% of all there is.

Who made this epic achievement possible, and who is now providing the instruments that illuminate the history of creation back to the first unimaginably small flicker of a second, such as the space probes that will make the journey to the distant stars and scan the void to understand why, in an apparently lifeless cosmos, the universe seems to have been fashioned so that life might be possible? The answer is another piece of cake: engineering graduates, can-do people who understand rigour and precision and stress and the limits of load-bearing structures, but whose achievements right now are opening new worlds of understanding and delight.

None of these discoveries has direct practical value. Science is part of human culture, like literature, like painting, like history. It is above everything an intellectual delight. You could call cosmology the ultimate leisure activity: it does not win bread to feed a single mouth. You could call spacecraft design a dreary, painstaking trial-and-error labour that certainly helps beam live coverage of international sporting fixtures to a billion homes (and what a preposterous fantasy that would have seemed 50 years ago), but adds nothing to the economy when it comes to sending a little planetary automaton to land on Saturn's moon Titan. You could say that and be right, but you'd also be wrong: the Cassini-Huygens mission to Titan in 2005 was an adventure as luminous as any novel, painting or science fiction movie.

I started with mathematical physics and engineering, but I could as easily have composed a hymn to physical chemistry, or biology, or palaeontology - sciences which in the same short timespan have told us the most astonishing things about ourselves, our history, our kinship with creation and our intimate relationship with the substance of the planet we share. And this hymn would have nothing to do with money-making, or idle leisure activities; it would have to do with the ultimate wealth, the only riches really worth having: the stuff in our minds.

I cannot think why we are still having the old arts v science debate, on this website and elsewhere in the media. The nine muses of the ancient Greeks stood for intellectual adventure and inquiry: an attempt to impose order and fashion meaning from the flux of events, substances, actions and reactions around us. There are lessons in history (there are always lessons in history: the trick is to work out which is the right lesson for now) and in literature, in music, in architecture, in the plastic arts.

The literary achievements of the last 3,000 years - from Homer, the Pentateuch, Ovid and Dante to Dickens, HG Wells, Marcel Proust and Thomas Mann - have provided a seam of human understanding, the riches of which are probably inexhaustible. But you could say exactly the same thing about the research of Newton, Humphry Davy, Faraday, Darwin, Einstein and the latest generation of mathematical physicists, engineers and biologists who have provided the parallel great adventure. I find the kind of arguments running right now - about what kind of student British universities ought to be producing - absolutely bizarre.

An engineer with mathematics and business skills? What use would such a person be unless he could also argue his case elegantly and persuasively in the language of Shakespeare and Dickens and JBS Haldane (science, peculiarly, is conducted almost everywhere in English)? And what would be the point of learning 17th- or 18th-century literature, or Victorian history, without also marvelling at the science that informed Newton and his Enlightenment inheritors, or Darwin and the hectic world of exploration around him?

More than 50 years ago, CP Snow, novelist, boffin and man about the corridors of power, put the "two cultures" question, as if science was somehow qualitatively different from the arts. But we cannot live without literature and art: it is through these that unique minds that lived a thousand years ago and ten thousand miles away speak directly and separately to each one of us, here and now. We cannot live without science, not because it gives us MP3 players and MMR vaccines, but because it tells us something concrete and reliable about the physical world around us. The poet shares his world with me. The scientist lights up our world for all of us. If we really only had one way of understanding the world, what kind of understanding would that be?

So we are back to the great British intellectual airport dilemma: which bit of cultural baggage should you carry into the cabin for your flight through life, and which should remain sealed in the hold? Here is the answer: it is a bogus question. There is no check-in clerk. There are no intellectual baggage limits. The destination is unknown. The flight duration is uncertain. The take-off is right now. You should take both, because you will need them on the journey, and there is no carousel at the other end.

by Tim Radford, 11 April 2008

Einstein

The above photograph is a portrait of Albert Einstein taken by Philippe Halsman.


Diane Arbus: The Legacy of the Twins


The Diane Arbus twins as adults. Credit to the Washington Post for the picture and an accompanying article on the impact and instrumentation of Arbus' photography, which I have reproduced below.

Double Exposure

NEW YORK They remember none of it. Not the lady with the camera, arranging them by a wall at the Knights of Columbus hall in their home town of Roselle, N.J. Not the chocolate cake they had just finished, which is very faintly visible in the picture at the creases of their lips. The Wade sisters, as they were known before they each married, recall nothing about the day they gazed into the lens of Diane Arbus and became part of American photographic history. Unless you count the dresses.

"We still have them," says Colleen.

"Our mother made them," says Cathleen. "They look black in the photograph but they're actually green."

They were 7 years old in 1967, when Arbus found the girls at a Christmas party for local twins and triplets. Nobody is quite sure how Arbus heard about the gathering, but a few parents obliged when she asked their children to pose. Which is how the Wade sisters wound up on a sidewalk, standing close enough to seem joined at the shoulder, their expression a kind of spectral blank.

It would become one of the most famous photographs of the era's most compelling photographer. Arbus killed herself in 1971, at the age of 48, leaving behind a gallery of characters -- some of them spooky, some of them bizarre, all of them vaguely tragic -- who won't go away. There's a retrospective of her work called "Revelations" now on view at the Metropolitan Museum of Art and it's a menagerie of weirdos we seem to have known all our lives: those two men waltzing at a drag ball, that Mexican dwarf, the grimacing kid with a toy grenade.

They've been handed a peculiar kind of celebrity, the kind you don't ask for and certainly don't expect. One day you're minding your business, the next day you're immortalized in perpetuity beside "Nudist lady with swan sunglasses, Pa. 1965," or "Transvestite at a drag ball, N.Y.C. 1970."

What's it like to land in this hallowed collection of "freaks," as Arbus once referred to her subjects? It depends on which "freak" you ask, it turns out. The great recurring theme of Arbus's work is a sense of otherness, and if you talk to a few of her subjects you realize that in some cases she discovered that otherness in people and then committed it to film, and in other cases she somehow imposed it.

"We thought it was the worst likeness of the twins we'd ever seen," whispers Bob Wade, the girls' father. He and his daughters are visiting the Met exhibit one recent afternoon and at the moment are standing a few feet from "Identical twins, Roselle, N.J. 1967," the image that is clearly the star of this show. It's featured on the publicity photo and there's a bench nearby so visitors can sit and stare.

"I mean it resembles them," Wade continues. "But we've always been baffled that she made them look ghostly. None of the other pictures we have of them looks anything like this."

THE FAMILY ALBUM

Tracking down the people Arbus photographed is tricky because the executors of her estate won't disclose the names of her subjects. But the identities of a few are known because they stepped forward at some point and said, "That's me." Others are known because Arbus for years had a lucrative sideline shooting family portraits, and some of those subjects have provided copies of the photos, along with their names, to museums.

That is why it's possible to identify Marcella Matthaei, who as an 11-year-old stood and glowered at Arbus in December of 1969, yielding a memorable study in a brooding adolescence. Marcella's mother had heard about the photographer through a friend who'd curated some high-profile museum shows, one of which included Arbus's work. In need of a professional for an annual family shoot, Gay Matthaei hired Arbus, which seems either bold or insane, depending on your point of view. But the Matthaeis were arty people, uninterested in conventional studio stuff, and Gay had seen the photo of the Wade sisters and thought it was a stunner.

"I really liked it," she says. "I'm an identical twin and I understood the photo she took of those little girls. I'd been posed with my twin my whole life."

Arbus snapped more than 300 photos that weekend, dressed in black and moving so unobtrusively around the house that the Matthaeis often forgot she was there.

"The only recollection I have of her is that I mistakenly thought she was Joan Baez," says Marcella, who lives in Florida now and describes herself as a part-time writer and part-time construction worker. "She was slender and pretty and my father had a Joan Baez album. I thought it was her."

The Matthaeis weren't anticipating Norman Rockwell results, of course, and that's not what they got. Arbus printed 50 of the photos, among them a striking portrait of Marcella, wearing a frilly sundress, her shoulders pulled back, her long bangs nearly shrouding the cryptically intense look in her eyes. It has the immediacy of a mug shot and you can't help but wonder what was going on in her mind at that moment. Is she fighting back tears? Deeply depressed?

Neither. "I was on my way to a party," she says. "I was interested in playing spin the bottle, and being put in a sundress with knee socks and sitting around with a stranger taking pictures of me was the last thing on my mind. What you see on my face is, 'Get this over and done with. My mom and dad told me to do this.' " At least Marcella knew she was being photographed. Other Arbus subjects had no idea. Like the infant in "A very young baby, N.Y.C. 1968," which ran in Harper's Bazaar and is now one of the images stopping the crowd at the Met. The baby's eyes are closed, lips a little drooly. One critic likened it to a death mask.

The weirdest part, it turns out, isn't what the infant looks like. It's who it is. It's Anderson Cooper. Yes, CNN anchorman Anderson Cooper.

"I have it in my bedroom," Cooper says by phone. "I think it's great."

The back story here is that Cooper's mom is Gloria Vanderbilt, the socialite turned denim jeans spokeswoman turned memoirist. She was married at the time to author Wyatt Emory Cooper, and she was friends with Arbus, who in 1968 was looking for babies to photograph for a series she was assembling. When Arbus sent the images to Harper's Bazaar, an editor called Vanderbilt with a question: Are you sure it's okay to put your son's name on this photo?

"They were worried that my mother might find the picture a little disturbing," says Cooper. "My mother was stunned." Publish his name, she told the magazine.

"I heard that Elton John sold me" -- by this he means a copy of "A very young baby" -- "at auction recently, and I was a little offended by that, frankly," Cooper says, laughing. He realizes why some might find the image unsettling, but he's amused by it and kind of thrilled to be in a museum.

His one request: "Just make it really clear to people that I'm not the kid with the grenade."

He's not the kid with the grenade. That would be Colin Wood, who is now 50 years old and an insurance agent living in Glendale, Calif. Wood has no memory of running into Arbus, which he did in Central Park one afternoon when he was 7. But he remembers that H.M.S. Pinafore outfit, and he recalls the type of toy grenade he is clutching so spasmodically in that picture. As fake weapons go, he recalls they were pretty annoying because they'd pop almost as soon as you threw them. "You couldn't throw it somewhere and duck," he says. "It blew up about a foot away."

Look at the other shots of Wood in that roll, which are included in the book version of "Revelations," and he comes across as a fairly typical kid, mugging for the camera. His guess is that he was out with his nanny when Arbus spotted him and after a few shots, he'd had enough. Or perhaps Arbus goaded him to give her something more.

"I'm sure that photo was a collaboration," he says. "I didn't pose like that unless asked. I think I was imitating a face I'd seen in war movies, which I loved watching at the time."

Wood says he was a hyperactive child, and there's a slightly manic pace to his speech today. He talks fast, rarely pausing. He first learned of his notoriety, he explains, when he was 14, after his stepsister spotted the image in a book. His first thought was something close to "Big deal." Then a classmate at his Rhode Island prep school found a copy and, as a practical joke, posted Xeroxes of the picture all over campus. Wood was mortified.

"He hated it, hated the whole thing," recalls Tim Ghriskey, who knew Wood in his prep school days. "We were all teenagers and none of us wanted notoriety, none of us wanted to stick out."

Wood's own feelings about the photo have evolved. He remembers feeling angry at Arbus for "making fun of a skinny kid with a sailor suit." But today he thinks of the image as one of the great conversation pieces of all time. And Arbus clearly fascinates him. He riffs about her for a good 15 minutes.

"She catches me in a moment of exasperation. It's true, I was exasperated. My parents had divorced and there was a general feeling of loneliness, a sense of being abandoned. I was just exploding. She saw that and it's like . . . commiseration. She captured the loneliness of everyone. It's all people who want to connect but don't know how to connect. And I think that's how she felt about herself. She felt damaged and she hoped that by wallowing in that feeling, through photography, she could transcend herself."

Wood remembers that his interest in guns and grenades prompted teachers at his Catholic grade school to suggest he see a shrink. ("They thought I was deranged" is how he puts it.) His father dismissed the idea. Wood ended up working for years with his father, a former professional tennis player who invented, and for a long time installed, a new kind of court surface. Wood tried a few different careers after that and eventually moved to Los Angeles to try his hand at acting. He found the auditioning process humiliating and he quit. Now he sells insurance.

He doesn't talk often about his cameo with Diane Arbus but it's been a long time since he was embarrassed about it. Once he wanted to break into theater, and when he started his own production company he knew what to call it: Grenade Boy Productions.

HEY, THAT'S THEM!

There's a gift shop near the Arbus show at the Met, and by the time the Wade sisters get there on Saturday afternoon, people have figured out who they are. Maybe it's their eyes, which are still a startling bright blue and appear in the photograph to be glowing. Or maybe it's their lime-green jackets and black slacks, nearly matching outfits that shout their twinness. A cashier notices them first, then others ask them to sign their posters. The most forward want them to pose for a picture.

"No flash photos in here, please," says a Met guard, breaking up the crowd.

You can understand the hubbub. Arbus's subjects seem to exist in another dimension, in some unreachable place where they are stranded and will never be seen again. She gave these two an otherworldly aura, as if they'd just stepped out of a fairy tale and are about to start fires with their minds. The director Stanley Kubrick paid homage to this mix of innocence and menace in "The Shining." Twin girls, side by side and in matching dresses, turn up as ghosts in the film, harbingers of a gory finale. It's utterly terrifying.

"I've never seen that movie," says Cathleen. "I've heard it was scary and I don't like scary movies."

The mystery of "Identical twins, Roselle, N.J. 1967" only deepens when you meet the Wade sisters, who are the least creepy people you'll ever know. By their own accounts, they have lived rather conventional lives and today they are both married, both working mothers, still very close and still a little shy. They're amused by this photo, maybe a little proud of it, too. But they have never reflected on it much and, pressed with questions like "Does this capture something about you?" or "Can you remember being this little girl?" they just shrug.

"It reminds me of my daughter," says Cathleen.

What Arbus has given us with this photo is ultimately a Sphinx without a riddle. Or maybe there's a riddle here, but it belongs to Arbus. And she isn't telling.

"Somebody called me and told me the twins were on the cover of the Village Voice," their dad says, shaking his head as the troupe heads for the exits. Bob Wade is describing the day he learned about "Identical twins." This was in 1972, to the best of his recollection, as the Museum of Modern Art put together an Arbus exhibit. "I told my wife, 'I didn't sign anything.' She said, 'Uh, I did.' "

Which is a good thing. A copy of "Identical twins" sold last year for nearly $500,000 and when Diane Arbus mailed the Wades that release form, she sent along something else: an original print of the photo.

"I've stashed that one away," Wade says, grinning. Then he nods toward his daughters. "That's their 401(k)."

by David Segal, Thursday May 12th, 2005

Diane Arbus

One of my favourite photographs of all time. I love the fashion and the cut of the clothes. Think of the way teenagers dress today! Look at their beautiful coats! When I first saw this image I thought it was cute because the kids looked young to me. Apparently they are 16, which again just contrasts against how fast kids grow up these days. You would never catch 16 year olds in 2008 wearing sensible clothes instead of cleavage and belly buttons exposed.

Just an extraordinary image, which to me represents the criminalisation and vulgar attitude of society towards people with differences, whether that be physical or mental disability, age, unconventional sets of values etc. How ostracising society can be. And also the prevalance of the worth society places on image, beauty, fashion etc and the notion that conforming to a certain type of stereotype will facilitate success. Diane Arbus was ahead of her time in documenting all of this. Kudos to this woman for partaking in the shot.

Again, great shot. A great example also of how fashion has changed and evolved. It is obvious from this photograph that the trend of dressing twins the same has remained, but that what they are dressed in itself has changed. A documentation of the flux of fashion, in a way. And of course a wonder of science, these two. Click here to see what they look like grown up.

See the 2008 reality TV series: Baby Ballroom.

Fourth Base...Freud Has Worn Me Out

The third and final contribution to the Thoery of Sex! Click on the link below for The Transformation of Puberty. (if you have already gone through puberty you might find this less catalystic than expected).

Three Contributions to the Theory of Sex: The Transformation of Puberty


With the beginning of puberty the changes set in which transform the infantile sexual life into its definite normal form. Hitherto the sexual impulse has been preponderantly autoerotic; it now finds the sexual object. Thus far it has manifested itself in single impulses and in erogenous zones seeking a certain pleasure as a single sexual aim. A new sexual aim now appears for the production of which all partial impulses coöperate, while the erogenous zones subordinate themselves to the primacy of the genital zone.

As the new sexual aim assigns very different functions to the two sexes their sexual developments now part company. The sexual development of the man is more consistent and easier to understand, while in the woman there even appears a form of regression. The normality of the sexual life is guaranteed only by the exact concurrence of the two streams directed to the sexual object and sexual aim. It is like the piercing of a tunnel from opposite sides.

The new sexual aim in the man consists in the discharging of the sexual products; it is not contradictory to the former sexual aim, that of obtaining pleasure; on the contrary, the highest amount of pleasure is connected with this final act in the sexual process. The sexual impulse now enters into the service of the function of propagation; it becomes, so to say, altruistic. If this transformation is to succeed its process must be adjusted to the original dispositions and all the peculiarities of the impulses.

Just as on every other occasion where new connections and compositions are to be formed in complicated mechanisms, here, too, there is a possibility for morbid disturbance if the new order of things does not get itself established. All morbid disturbances of the sexual life may justly be considered as inhibitions of development.

THE PRIMACY OF THE GENITAL ZONES AND THE FOREPLEASURE

From the course of development as described we can clearly see the issue and the end aim. The intermediary transitions are still quite obscure and many a riddle will have to be solved in them.

The most striking process of puberty has been selected as its most characteristic; it is the manifest growth of the external genitals which have shown a relative inhibition of growth during the latency period of childhood. Simultaneously the inner genitals develop to such an extent as to be able to furnish sexual products or to receive them for the purpose of forming a new living being. A most complicated apparatus is thus formed which waits to be claimed.

This apparatus can be set in motion by stimuli, and observation teaches that the stimuli can affect it in three ways: from the outer world through the familiar erogenous zones; from the inner organic world by ways still to be investigated; and from the psychic life, which merely represents a depository of external impressions and a receptacle of inner excitations. The same result follows in all three cases, namely, a state which can be designated as "sexual excitation" and which manifests itself in psychic and somatic signs. The psychic sign consists in a peculiar feeling of tension of a most urgent character, and among the manifold somatic signs the many changes in the genitals stand first. They have a definite meaning, that of readiness; they constitute a preparation for the sexual act (the erection of the penis and the glandular activity of the vagina).

The Sexual Tension—The character of the tension of sexual excitation is connected with a problem the solution of which is as difficult as it would be important for the conception of the sexual process. Despite all divergence of opinion regarding it in psychology, I must firmly maintain that a feeling of tension must carry with it the character of displeasure. For me it is conclusive that such a feeling carries with it the impulse to alter the psychic situation, and acts incitingly, which is quite contrary to the nature of perceived pleasure. But if we ascribe the tension of the sexual excitation to the feelings of displeasure we encounter the fact that it is undoubtedly pleasurably perceived. The tension produced by sexual excitation is everywhere accompanied by pleasure; even in the preparatory changes of the genitals there is a distinct feeling of satisfaction. What relation is there between this unpleasant tension and this feeling of pleasure?

Everything relating to the problem of pleasure and pain touches one of the weakest spots of present-day psychology. We shall try if possible to learn something from the determinations of the case in question and to avoid encroaching on the problem as a whole. Let us first glance at the manner in which the erogenous zones adjust themselves to the new order of things. An important rôle devolves upon them in the preparation of the sexual excitation. The eye which is very remote from the sexual object is most often in position, during the relations of object wooing, to become attracted by that particular quality of excitation, the motive of which we designate as beauty in the sexual object. The excellencies of the sexual object are therefore also called "attractions." This attraction is on the one hand already connected with pleasure, and on the other hand it either results in an increase of the sexual excitation or in an evocation of the same where it is still wanting. The effect is the same if the excitation of another erogenous zone, e.g., the touching hand, is added to it. There is on the one hand the feeling of pleasure which soon becomes enhanced by the pleasure from the preparatory changes, and on the other hand there is a further increase of the sexual tension which soon changes into a most distinct feeling of displeasure if it cannot proceed to more pleasure. Another case will perhaps be clearer; let us, for example, take the case where an erogenous zone, like a woman's breast, is excited by touching in a person who is not sexually excited at the time. This touching in itself evokes a feeling of pleasure, but it is also best adapted to awaken sexual excitement which demands still more pleasure. How it happens that the perceived pleasure evokes the desire for greater pleasure, that is the real problem.

Fore-pleasure Mechanism.—But the rôle which devolves upon the erogenous zones is clear. What applies to one applies to all. They are all utilized to furnish a certain amount of pleasure through their own proper excitation, which increases the tension, and which is in turn destined to produce the necessary motor energy in order to bring to a conclusion the sexual act. The last part but one of this act is again a suitable excitation of an erogenous zone; i.e., the genital zone proper of the glans penis is excited by the object most fit for it, the mucous membrane of the vagina, and through the pleasure furnished by this excitation it now produces reflexly the motor energy which conveys to the surface the sexual substance. This last pleasure is highest in its intensity, and differs from the earliest ones in its mechanism. It is altogether produced through discharge, it is altogether gratification pleasure and the tension of the libido temporarily dies away with it.

It does not seem to me unjustified to fix by name the distinction in the nature of these pleasures, the one through the excitation of the erogenous zones, and the other through the discharge of the sexual substance. In contradistinction to the end-pleasure, or pleasure of gratification of sexual activity, we can properly designate the first as fore-pleasure. The fore-pleasure is then the same as that furnished by the infantile sexual impulse, though on a reduced scale; while the end-pleasure is new and is probably connected with determinations which first appear at puberty. The formula for the new function of the erogenous zones reads as follows: they are utilized for the purpose of making possible the production of the greater pleasure of gratification by means of the fore-pleasure which is gained from them as in infantile life.

I have recently been able to elucidate another example from a quite different realm of the psychic life, in which likewise a greater feeling of pleasure is achieved by means of a lesser feeling of pleasure which thereby acts as an alluring premium. We had there also the opportunity of entering more deeply into the nature of pleasure.

Dangers of the Fore-pleasure.—However the connection of fore-pleasure with the infantile life is strengthened by the pathogenic rôle which may devolve upon it. In the mechanism through which the fore-pleasure is expressed there exists an obvious danger to the attainment of the normal sexual aim. This occurs if it happens that there is too much fore-pleasure and too little tension in any part of the preparatory sexual process. The motive power for the further continuation of the sexual process then escapes, the whole road becomes shortened, and the preparatory action in question takes the place of the normal sexual aim. Experience shows that such a hurtful condition is determined by the fact that the erogenous zone concerned or the corresponding partial impulse has already contributed an unusual amount of pleasure in infantile life. If other factors favoring fixation are added a compulsion readily results for the later life which prevents the fore-pleasure from arranging itself into a new combination. Indeed, the mechanism of many perversions is of such a nature; they merely represent a lingering at a preparatory act of the sexual process.

The failure of the function of the sexual mechanism through the fault of the fore-pleasure is generally avoided if the primacy of the genital zones has also already been sketched out in infantile life. The preparations of the second half of childhood (from the eighth year to puberty) really seem to favor this. During these years the genital zones behave almost as at the age of maturity; they are the seat of exciting sensations and of preparatory changes if any kind of pleasure is experienced through the gratification of other erogenous zones; although this effect remains aimless, i.e., it contributes nothing towards the continuation of the sexual process. Besides the pleasure of gratification a certain amount of sexual tension appears even in infancy, though it is less constant and less abundant. We can now understand also why in the discussion of the sources of sexuality we had a perfectly good reason for saying that the process in question acts as sexual gratification as well as sexual excitement. We note that on our way towards the truth we have at first enormously exaggerated the distinctions between the infantile and the mature sexual life, and we therefore supplement what has been said with a correction. The infantile manifestations of sexuality determine not only the deviations from the normal sexual life but also the normal formations of the same.

THE PROBLEM OF SEXUAL EXCITEMENT

It remains entirely unexplained whence the sexual tension comes which originates simultaneously with the gratification of erogenous zones and what is its nature. The obvious supposition that this tension originates in some way from the pleasure itself is not only improbable in itself but untenable, inasmuch as during the greatest pleasure which is connected with the voiding of sexual substance there is no production of tension but rather a removal of all tension. Hence, pleasure and sexual tension can be only indirectly connected.

The Rôle of the Sexual Substance.—Aside from the fact that only the discharge of the sexual substance can normally put an end to the sexual excitement, there are other essential facts which bring the sexual tension into relation with the sexual products. In a life of continence the sexual activity is wont to discharge the sexual substance at night during pleasurable dream hallucinations of a sexual act, this discharge coming at changing but not at entirely capricious intervals; and the following interpretation of this process—the nocturnal pollution—can hardly be rejected, viz., that the sexual tension which brings about a substitute for the sexual act by the short hallucinatory road is a function of the accumulated semen in the reservoirs for the sexual products. Experiences with the exhaustibility of the sexual mechanism speak for the same thing. Where there is no stock of semen it is not only impossible to accomplish the sexual act, but there is also a lack of excitability in the erogenous zones, the suitable excitation of which can evoke no pleasure. We thus discover incidentally that a certain amount of sexual tension is itself necessary for the excitability of the erogenous zones.

One would thus be forced to the assumption, which if I am not mistaken is quite generally adopted, that the accumulation of sexual substance produces and maintains the sexual tension. The pressure of these products on the walls of their receptacles acts as an excitant on the spinal center, the state of which is then perceived by the higher centers which then produce in consciousness the familiar feeling of tension. If the excitation of erogenous zones increases the sexual tension, it can only be due to the fact that the erogenous zones are connected with these centers by previously formed anatomical connections. They increase there the tone of the excitation, and with sufficient sexual tension they set in motion the sexual act, and with insufficient tension they merely stimulate a production of the sexual substance.

The weakness of the theory which one finds adopted, e.g., in v. Krafft-Ebing's description of the sexual process, lies in the fact that it has been formed for the sexual activity of the mature man and pays too little heed to three kinds of relations which should also have been elucidated. We refer to the relations as found in the child, in the woman, and in the castrated male. In none of the three cases can we speak of an accumulation of sexual products in the same sense as in the man, which naturally renders difficult the general application of this scheme; still it may be admitted without any further ado that ways can be found to justify the subordination of even these cases. Nevertheless one should be cautious about burdening the factor of accumulation of sexual products with actions which it seems incapable of supporting.

Overestimation of the Internal Genitals.—That sexual excitement can be independent to a considerable extent of the production of sexual substance seems to be shown by observations on castrated males, in whom the libido sometimes escapes the injury caused by the operation, although the opposite behavior, which is really the motive for the operation, is usually the rule. It is therefore not at all surprising, as C. Rieger puts it, that the loss of the male germ glands in maturer age should exert no new influence on the psychic life of the individual. The germ glands are really not the sexuality, and the experience with castrated males only verifies what we had long before learned from the removal of the ovaries, namely that it is impossible to do away with the sexual character by removing the germ glands. To be sure, castration performed at a tender age, before puberty, comes nearer to this aim, but it would seem in this case that besides the loss of the sexual glands we must also consider the inhibition of development and other factors which are connected with that loss.

Chemical Theories.—The truth remains, however, that we are unable to give any information about the nature of the sexual excitement for the reason that we do not know with what organ or organs sexuality is connected, since we have seen that the sexual glands have been overestimated in this significance. Since surprising discoveries have taught us the important rôle of the thyroid gland in sexuality, we may assume that the knowledge of the essential factors of sexuality are still withheld from us. One who feels the need of filling up the large gap in our knowledge with a preliminary assumption may formulate for himself the following theory based on the active substances found in the thyroid. Through the appropriate excitement of erogenous zones, as well as through other conditions under which sexual excitement originates, a material which is universally distributed in the organism becomes disintegrated, the decomposing products of which supply a specific stimulus to the organs of reproduction or to the spinal center connected with them. Such a transformation of a toxic stimulus in a particular organic stimulus we are already familiar with from other toxic products introduced into the body from without. To treat, if only hypothetically, the complexities of the pure toxic and the physiologic stimulations which result in the sexual processes is not now our appropriate task. To be sure, I attach no value to this special assumption and I shall be quite ready to give it up in favor of another, provided its original character, the emphasis on the sexual chemism, were preserved. For this apparently arbitrary statement is supported by a fact which, though little heeded, is most noteworthy. The neuroses which can be traced only to disturbances of the sexual life show the greatest clinical resemblance to the phenomena of intoxication and abstinence which result from the habitual introduction of pleasure-producing poisonous substances (alkaloids.)

THE THEORY OF THE LIBIDO

These assumptions concerning the chemical basis of the sexual excitement are in full accord with the auxiliary conception which we formed for the purpose of mastering the psychic manifestations of the sexual life. We have determined the concept of libido as that of a force of variable quantity which has the capacity of measuring processes and transformations in the spheres of sexual excitement. This libido we distinguished from the energy which is to be generally adjudged to the psychic processes with reference to its special origin and thus we attribute to it also a qualitative character. In separating libidinous from other psychic energy we give expression to the assumption that the sexual processes of the organism are differentiated from the nutritional processes through a special chemism. The analyses of perversions and psychoneuroses have taught us that this sexual excitement is furnished not only from the so-called sexual parts alone but from all organs of the body. We thus formulate for ourselves the concept of a libido-quantum whose psychic representative we designate as the ego-libido; the production, increase, distribution and displacement of this ego-libido will offer the possible explanation for the observed psycho-sexual phenomena.

But this ego-libido becomes conveniently accessible to psychoanalytic study only when the psychic energy is employed on sexual objects, that is when it becomes object libido. Then we see it as it concentrates and fixes itself on objects, or as it leaves those objects and passes over to others from which positions it directs the individual's sexual activity, that is, it leads to partial and temporary extinction of the libido. Psychoanalysis of the so-called transference neuroses (hysteria and compulsion neurosis) offers us here a reliable insight.

Concerning the fates of the object libido we also state that it is withdrawn from the object, that it is preserved floating in special states of tension and is finally taken back into the ego, so that it again becomes ego-libido. In contradistinction to the object-libido we also call the ego-libido narcissistic libido. From psychoanalysis we look over the boundary which we are not permitted to pass into the activity of the narcissistic libido and thus form an idea of the relations between the two. The narcissistic or ego-libido appears to us as the great reservoir from which the energy for the investment of the object is sent out and into which it is drawn back again, while the narcissistic libido investment of the ego appears to us as the realized primitive state in the first childhood, which only becomes hidden by the later emissions of the libido, and is retained at the bottom behind them.

The task of a theory of libido of neurotic and psychotic disturbances would have for its object to express in terms of the libido-economy all observed phenomena and disclosed processes. It is easy to divine that the greater significance would attach thereby to the destinies of the ego-libido, especially where it would be the question of explaining the deeper psychotic disturbances. The difficulty then lies in the fact that the means of our investigation, psychoanalysis, at present gives us definite information only concerning the transformation of the object-libido, but cannot distinguish without further study the ego-libido from the other effective energies in the ego.

DIFFERENTIATION BETWEEN MAN AND WOMAN

It is known that the sharp differentiation of the male and female character originates at puberty, and it is the resulting difference which, more than any other factor, decisively influences the later development of personality. To be sure, the male and female dispositions are easily recognizable even in infantile life; thus the development of sexual inhibitions (shame, loathing, sympathy, etc.) ensues earlier and with less resistance in the little girl than in the little boy. The tendency to sexual repression certainly seems much greater, and where partial impulses of sexuality are noticed they show a preference for the passive form. But, the autoerotic activity of the erogenous zones is the same in both sexes, and it is this agreement that removes the possibility of a sex differentiation in childhood as it appears after puberty. In respect to the autoerotic and masturbatic sexual manifestations, it may be asserted that the sexuality of the little girl has entirely a male character. Indeed, if one could give a more definite content to the terms "masculine and feminine," one might advance the opinion that the libido is regularly and lawfully of a masculine nature, whether in the man or in the woman; and if we consider its object, this may be either the man or the woman.

Since becoming acquainted with the aspect of bisexuality I hold this factor as here decisive, and I believe that without taking into account the factor of bisexuality it will hardly be possible to understand the actually observed sexual manifestations in man and woman.

The Leading Zones in Man and Woman.—Further than this I can only add the following. The chief erogenous zone in the female child is the clitoris, which is homologous to the male penis. All I have been able to discover concerning masturbation in little girls concerned the clitoris and not those other external genitals which are so important for the later sexual functions. With few exceptions I myself doubt whether the female child can be seduced to anything but clitoris masturbation. The frequent spontaneous discharges of sexual excitement in little girls manifest themselves in a twitching of the clitoris, and its frequent erections enable the girl to understand correctly even without any instruction the sexual manifestations of the other sex; they simply transfer to the boys the sensations of their own sexual processes.

If one wishes to understand how the little girl becomes a woman, he must follow up the further destinies of this clitoris excitation. Puberty, which brings to the boy a great advance of libido, distinguishes itself in the girl by a new wave of repression which especially concerns the clitoris sexuality. It is a part of the male sexual life that sinks into repression. The reënforcement of the sexual inhibitions produced in the woman by the repression of puberty causes a stimulus in the libido of the man and forces it to increase its capacity; with the height of the libido there is a rise in the overestimation of the sexual, which can be present in its full force only when the woman refuses and denies her sexuality. If the sexual act is finally submitted to and the clitoris becomes excited its rôle is then to conduct the excitement to the adjacent female parts, and in this it acts like a chip of pine wood which is utilized to set fire to the harder wood. It often takes some time for this transference to be accomplished; during which the young wife remains anesthetic. This anesthesia may become permanent if the clitoris zone refuses to give up its excitability; a condition brought on by abundant activities in infantile life. It is known that anesthesia in women is often only apparent and local. They are anesthetic at the vaginal entrance but not at all unexcitable through the clitoris or even through other zones. Besides these erogenous causes of anesthesia there are also psychic causes likewise determined by the repression.

If the transference of the erogenous excitability from the clitoris to the vagina has succeeded, the woman has thus changed her leading zone for the future sexual activity; the man on the other hand retains his from childhood. The main determinants for the woman's preference for the neuroses, especially for hysteria, lie in this change of the leading zone as well as in the repression of puberty. These determinants are therefore most intimately connected with the nature of femininity.

THE OBJECT FINDING

While the primacy of the genital zones is being established through the processes of puberty, and the erected penis in the man imperiously points towards the new sexual aim, i.e., towards the penetration of a cavity which excites the genital zone, the object-finding, for which also preparations have been made since early childhood, becomes consummated on the psychic side. While the very incipient sexual gratifications are still connected with the taking of nourishment, the sexual impulse has a sexual object outside its own body in his mother's breast. This object it loses later, perhaps at the very time when it becomes possible for the child to form a general picture of the person to whom the organ granting him the gratification belongs. The sexual impulse later regularly becomes autoerotic, and only after overcoming the latency period is there a resumption of the original relation. It is not without good reason that the suckling of the child at its mother's breast has become a model for every amour. The object-finding is really a re-finding.

The Sexual Object of the Nursing Period.—However, even after the separation of the sexual activity from the taking of nourishment, there still remains from this first and most important of all sexual relations an important share, which prepares the object selection and assists in reestablishing the lost happiness. Throughout the latency period the child learns to love other persons who assist it in its helplessness and gratify its wants; all this follows the model and is a continuation of the child's infantile relations to his wet nurse. One may perhaps hesitate to identify the tender feelings and esteem of the child for his foster-parents with sexual love; I believe, however, that a more thorough psychological investigation will establish this identity beyond any doubt. The intercourse between the child and its foster-parents is for the former an inexhaustible source of sexual excitation and gratification of erogenous zones, especially since the parents—or as a rule the mother—supplies the child with feelings which originate from her own sexual life; she pats it, kisses it, and rocks it, plainly taking it as a substitute for a full-valued sexual object.The mother would probably be terrified if it were explained to her that all her tenderness awakens the sexual impulse of her child and prepares its future intensity. She considers her actions as asexually "pure" love, for she carefully avoids causing more irritation to the genitals of the child than is indispensable in caring for the body. But as we know the sexual impulse is not awakened by the excitation of genital zones alone. What we call tenderness will some day surely manifest its influence on the genital zones also. If the mother better understood the high significance of the sexual impulse for the whole psychic life and for all ethical and psychic activities, the enlightenment would spare her all reproaches. By teaching the child to love she only fulfills her function; for the child should become a fit man with energetic sexual needs, and accomplish in life all that the impulse urges the man to do. Of course, too much parental tenderness becomes harmful because it accelerates the sexual maturity, and also because it "spoils" the child and makes it unfit to temporarily renounce love or be satisfied with a smaller amount of love in later life. One of the surest premonitions of later nervousness is the fact that the child shows itself insatiable in its demands for parental tenderness; on the other hand, neuropathic parents, who usually display a boundless tenderness, often with their caressing awaken in the child a disposition for neurotic diseases. This example at least shows that neuropathic parents have nearer ways than inheritance by which they can transfer their disturbances to their children.

Infantile Fear.—The children themselves behave from their early childhood as if their attachment to their foster-parents were of the nature of sexual love. The fear of children is originally nothing but an expression for the fact that they miss the beloved person. They therefore meet every stranger with fear, they are afraid of the dark because they cannot see the beloved person, and are calmed if they can grasp that person's hand. The effect of childish fears and of the terrifying stories told by nurses is overestimated if one blames the latter for producing the fear in children. Children who are predisposed to fear absorb these stories, which make no impression whatever upon others; and only such children are predisposed to fear whose sexual impulse is excessive or prematurely developed, or has become exigent through pampering. The child behaves here like the adult, that is, it changes its libido into fear when it cannot bring it to gratification, and the grown-up who becomes neurotic on account of ungratified libido behaves in his anxiety like a child; he fears when he is alone, i.e., without a person of whose love he believes himself sure, and who can calm his fears by means of the most childish measures.

Incest Barriers.—If the tenderness of the parents for the child has luckily failed to awaken the sexual impulse of the child prematurely, i.e., before the physical determinations for puberty appear, and if that awakening has not gone so far as to cause an unmistakable breaking through of the psychic excitement into the genital system, it can then fulfill its task and direct the child at the age of maturity in the selection of the sexual object. It would, of course, be most natural for the child to select as the sexual object that person whom it has loved since childhood with, so to speak, a suppressed libido. But owing to the delay of sexual maturity time has been gained for the erection beside the sexual inhibitions of the incest barrier, that moral prescription which explicitly excludes from the object selection the beloved person of infancy or blood relation. The observance of this barrier is above all a demand of cultural society which must guard against the absorption by the family of those interests which it needs for the production of higher social units. Society, therefore, uses every means to loosen those family ties in every individual, especially in the boy, which are authoritative in childhood only.

The object selection, however, is first accomplished in the imagination, and the sexual life of the maturing youth has hardly any escape except indulgence in phantasies or ideas which are not destined to be brought to execution. In the phantasies of all persons the infantile inclinations, now reënforced by somatic emphasis, reappear, and among them one finds in regular frequency and in the first place the sexual feeling of the child for the parents. This has usually already been differentiated by the sexual attraction, the attraction of the son for the mother and of the daughter for the father. Simultaneously with the overcoming and rejection of these distinctly incestuous phantasies there occurs one of the most important as well as one of the most painful psychic accomplishments of puberty; it is the breaking away from the parental authority, through which alone is formed that opposition between the new and old generations which is so important for cultural progress. Many persons are detained at each of the stations in the course of development through which the individual must pass; and accordingly there are persons who never overcome the parental authority and never, or very imperfectly, withdraw their affection from their parents. They are mostly girls, who, to the delight of their parents, retain their full infantile love far beyond puberty, and it is instructive to find that in their married life these girls are incapable of fulfilling their duties to their husbands. They make cold wives and remain sexually anesthetic. This shows that the apparently non-sexual love for the parents and the sexual love are nourished from the same source, i.e., that the first merely corresponds to an infantile fixation of the libido.

The nearer we come to the deeper disturbances of the psychosexual development the more easily we can recognize the evident significance of the incestuous object-selection. As a result of sexual rejection there remains in the unconscious of the psychoneurotic a great part or the whole of the psychosexual activity for object finding. Girls with an excessive need for affection and an equal horror for the real demands of the sexual life experience an uncontrollable temptation on the one hand to realize in life the ideal of the asexual love and on the other hand to conceal their libido under an affection which they may manifest without self reproach; this they do by clinging for life to the infantile attraction for their parents or brothers or sisters which has been repressed in puberty. With the help of the symptoms and other morbid manifestations, psychoanalysis can trace their unconscious thoughts and translate them into the conscious, and thus easily show to such persons that they are in love with their consanguinous relations in the popular meaning of the term. Likewise when a once healthy person falls sick after an unhappy love affair, the mechanism of the disease can distinctly be explained as a return of his libido to the persons preferred in his infancy.

The After Effects of the Infantile Object Selection.—Even those who have happily eluded the incestuous fixation of their libido have not completely escaped its influence. It is a distinct echo of this phase of development that the first serious love of the young man is often for a mature woman and that of the girl for an older man equipped with authority—i.e., for persons who can revive in them the picture of the mother and father. Generally speaking object selection unquestionably takes place by following more freely these prototypes. The man seeks above all the memory picture of his mother as it has dominated him since the beginning of childhood; this is quite consistent with the fact that the mother, if still living, strives against this, her renewal, and meets it with hostility. In view of this significance of the infantile relation to the parents for the later selection of the sexual object, it is easy to understand that every disturbance of this infantile relation brings to a head the most serious results for the sexual life after puberty. Jealousy of the lover, too, never lacks the infantile sources or at least the infantile reinforcement. Quarrels between parents and unhappy marital relations between the same determine the severest predispositions for disturbed sexual development or neurotic diseases in the children.

The infantile desire for the parents is, to be sure, the most important, but not the only trace revived in puberty which points the way to the object selection. Other dispositions of the same origin permit the man, still supported by his infancy, to develop more than one single sexual series and to form different determinations for the object selection.

Prevention of Inversion.—One of the tasks imposed in the object selection consists in not missing the opposite sex. This, as we know, is not solved without some difficulty. The first feelings after puberty often enough go astray, though not with any permanent injury. Dessoir has called attention to the normality of the enthusiastic friendships formed by boys and girls with their own sex. The greatest force which guards against a permanent inversion of the sexual object is surely the attraction exerted by the opposite sex characters on each other. For this we can give no explanation in connection with this discussion. This factor, however, does not in itself suffice to exclude the inversion; besides this there are surely many other supporting factors. Above all, there is the authoritative inhibition of society; experience shows that where the inversion is not considered a crime it fully corresponds to the sexual inclinations of many persons. Moreover, it may be assumed that in the man the infantile memories of the mother's tenderness, as well as that of other females who cared for him as a child, energetically assist in directing his selection to the woman, while the early sexual intimidation experienced through the father and the attitude of rivalry existing between them deflects the boy from the same sex. Both factors also hold true in the case of the girl whose sexual activity is under the special care of the mother. This results in a hostile relation to the same sex which decisively influences the object selection in the normal sense. The bringing up of boys by male persons (slaves in the ancient times) seems to favor homosexuality; the frequency of inversion in the present day nobility is probably explained by their employment of male servants, and by the scant care that mothers of that class give to their children. It happens in some hysterics that one of the parents has disappeared (through death, divorce, or estrangement), thus permitting the remaining parent to absorb all the love of the child, and in this way establishing the determinations for the sex of the person to be selected later as the sexual object; thus a permanent inversion is made possible.

SUMMARY

It is now time to attempt a summing-up. We have started from the aberrations of the sexual impulse in reference to its object and aim and have encountered the question whether these originate from a congenital predisposition, or whether they are acquired in consequence of influences from life. The answer to this question was reached through an examination of the relations of the sexual life of psychoneurotics, a numerous group not very remote from the normal. This examination has been made through psychoanalytic investigations. We have thus found that a tendency to all perversions might be demonstrated in these persons in the form of unconscious forces revealing themselves as symptom creators and we could say that the neurosis is, as it were, the negative of the perversion. In view of the now recognized great diffusion of tendencies to perversion the idea forced itself upon us that the disposition to perversions is the primitive and universal disposition of the human sexual impulse, from which the normal sexual behavior develops in consequence of organic changes and psychic inhibitions in the course of maturity. We hoped to be able to demonstrate the original disposition in the infantile life; among the forces restraining the direction of the sexual impulse we have mentioned shame, loathing and sympathy, and the social constructions of morality and authority. We have thus been forced to perceive in every fixed aberration from the normal sexual life a fragment of inhibited development and infantilism. The significance of the variations of the original dispositions had to be put into the foreground, but between them and the influences of life we had to assume a relation of coöperation and not of opposition. On the other hand, as the original disposition must have been a complex one, the sexual impulse itself appeared to us as something composed of many factors, which in the perversions becomes separated, as it were, into its components. The perversions, thus prove themselves to be on the one hand inhibitions, and on the other dissociations from the normal development. Both conceptions became united in the assumption that the sexual impulse of the adult due to the composition of the diverse feelings of the infantile life became formed into one unit, one striving, with one single aim.

We also added an explanation for the preponderance of perversive tendencies in the psychoneurotics by recognizing in these tendencies collateral fillings of side branches caused by the shifting of the main river bed through repression, and we then turned our examination to the sexual life of the infantile period.[12] We found it regrettable that the existence of a sexual life in infancy has been disputed, and that the sexual manifestations which have been often observed in children have been described as abnormal occurrences. It rather seemed to us that the child brings along into the world germs of sexual activity and that even while taking nourishment it at the same time also enjoys a sexual gratification which it then seeks again to procure for itself through the familiar activity of "thumbsucking." The sexual activity of the child, however, does not develop in the same measure as its other functions, but merges first into the so-called latency period from the age of three to the age of five years. The production of sexual excitation by no means ceases at this period but continues and furnishes a stock of energy, the greater part of which is utilized for aims other than sexual; namely, on the one hand for the delivery of sexual components for social feelings, and on the other hand (by means of repression and reaction formation) for the erection of the future sexual barriers. Accordingly, the forces which are destined to hold the sexual impulse in certain tracks are built up in infancy at the expense of the greater part of the perverse sexual feelings and with the assistance of education. Another part of the infantile sexual manifestations escapes this utilization and may manifest itself as sexual activity. It can then be discovered that the sexual excitation of the child flows from diverse sources. Above all gratifications originate through the adapted sensible excitation of so-called erogenous zones. For these probably any skin region or sensory organ may serve; but there are certain distinguished erogenous zones the excitation of which by certain organic mechanisms is assured from the beginning. Moreover, sexual excitation originates in the organism, as it were, as a by-product in a great number of processes, as soon as they attain a certain intensity; this especially takes place in all strong emotional excitements even if they be of a painful nature. The excitations from all these sources do not yet unite, but they pursue their aim individually—this aim consisting merely in the gaining of a certain pleasure. The sexual impulse of childhood is therefore objectless or autoerotic.

Still during infancy the erogenous zone of the genitals begins to make itself noticeable, either by the fact that like any other erogenous zone it furnishes gratification through a suitable sensible stimulus, or because in some incomprehensible way the gratification from other sources causes at the same time the sexual excitement which has a special connection with the genital zone. We found cause to regret that a sufficient explanation of the relations between sexual gratification and sexual excitement, as well as between the activity of the genital zone and the remaining sources of sexuality, was not to be attained.

We were unable to state what amount of sexual activity in childhood might be designated as normal to the extent of being incapable of further development. The character of the sexual manifestation showed itself to be preponderantly masturbatic. We, moreover, verified from experience the belief that the external influences of seduction, might produce premature breaches in the latency period leading as far as the suppression of the same, and that the sexual impulse of the child really shows itself to be polymorphous-perverse; furthermore, that every such premature sexual activity impairs the educability of the child.

Despite the incompleteness of our examinations of the infantile sexual life we were subsequently forced to attempt to study the serious changes produced by the appearance of puberty. We selected two of the same as criteria, namely, the subordination of all other sources of the sexual feeling to the primacy of the genital zones, and the process of object finding. Both of them are already developed in childhood. The first is accomplished through the mechanism of utilizing the fore-pleasure, whereby all other independent sexual acts which are connected with pleasure and excitement become preparatory acts for the new sexual aim, the voiding of the sexual products, the attainment of which under enormous pleasure puts an end to the sexual feeling. At the same time we had to consider the differentiation of the sexual nature of man and woman, and we found that in order to become a woman a new repression is required which abolishes a piece of infantile masculinity, and prepares the woman for the change of the leading genital zones. Lastly, we found the object selection, tracing it through infancy to its revival in puberty; we also found indications of sexual inclinations on the part of the child for the parents and foster-parents, which, however, were turned away from these persons to others resembling them by the incest barriers which had been erected in the meantime. Let us finally add that during the transition period of puberty the somatic and psychic processes of development proceed side by side, but separately, until with the breaking through of an intense psychic love-stimulus for the innervation of the genitals, the normally demanded unification of the erotic function is established.

The Factors Disturbing the Development.—As we have already shown by different examples, every step on this long road of development may become a point of fixation and every joint in this complicated structure may afford opportunity for a dissociation of the sexual impulse. It still remains for us to review the various inner and outer factors which disturb the development, and to mention the part of the mechanism affected by the disturbance emanating from them. The factors which we mention here in a series cannot, of course, all be in themselves of equal validity and we must expect to meet with difficulties in the assigning to the individual factors their due importance.

Constitution and Heredity.—In the first place, we must mention here the congenital variation of the sexual constitution, upon which the greatest weight probably falls, but the existence of which, as may be easily understood, can be established only through its later manifestations and even then not always with great certainty. We understand by it a preponderance of one or another of the manifold sources of the sexual excitement, and we believe that such a difference of disposition must always come to expression in the final result, even if it should remain within normal limits. Of course, we can also imagine certain variations of the original disposition that even without further aid must necessarily lead to the formation of an abnormal sexual life. One can call these "degenerative" and consider them as an expression of hereditary deterioration. In this connection I have to report a remarkable fact. In more than half of the severe cases of hysteria, compulsion neuroses, etc., which I have treated by psychotherapy, I have succeeded in positively demonstrating that their fathers have gone through an attack of syphilis before marriage; they have either suffered from tabes or general paresis, or there was a definite history of lues. I expressly add that the children who were later neurotic showed absolutely no signs of hereditary lues, so that the abnormal sexual constitution was to be considered as the last off-shoot of the luetic heredity. As far as it is now from my thoughts to put down a descent from syphilitic parents as a regular and indispensable etiological determination of the neuropathic constitution, I nevertheless maintain that the coincidence observed by me is not accidental and not without significance.

The hereditary relations of the positive perverts are not so well known because they know how to avoid inquiry. Still there is reason to believe that the same holds true in the perversions as in the neuroses. We often find perversions and psychoneuroses in the different sexes of the same family, so distributed that the male members, or one of them, is a positive pervert, while the females, following the repressive tendencies of their sex, are negative perverts or hysterics. This is a good example of the substantial relations between the two disturbances which I have discovered.

Further Elaboration.—It cannot, however, be maintained that the structure of the sexual life is rendered finally complete by the addition of the diverse components of the sexual constitution. On the contrary, qualifications continue to appear and new possibilities result, depending upon the fate experienced by the sexual streams originating from the individual sources. This further elaboration is evidently the final and decisive one while the constitution described as uniform may lead to three final issues. If all the dispositions assumed to be abnormal retain their relative proportion, and are strengthened with maturity, the ultimate result can only be a perverse sexual life. The analysis of such abnormally constituted dispositions has not yet been thoroughly undertaken, but we already know cases that can be readily explained in the light of these theories. Authors believe, for example, that a whole series of fixation perversions must necessarily have had as their basis a congenital weakness of the sexual impulse. The statement seems to me untenable in this form, but it becomes ingenious if it refers to a constitutional weakness of one factor in the sexual impulse, namely, the genital zone, which later in the interests of propagation accepts as a function the sum of the individual sexual activities. In this case the summation which is demanded in puberty must fail and the strongest of the other sexual components continues its activity as a perversion.

Repression.—Another issue results if in the course of development certain powerful components experience a repression—which we must carefully note is not a suspension. The excitations in question are produced as usual but are prevented from attaining their aim by psychic hindrances, and are driven off into many other paths until they express themselves in a symptom. The result can be an almost normal sexual life—usually a limited one—but supplemented by psychoneurotic disease. It is these cases that become so familiar to us through the psychoanalytic investigation of neurotics. The sexual life of such persons begins like that of perverts, a considerable part of their childhood is filled up with perverse sexual activity which occasionally extends far beyond the period of maturity, but owing to inner reasons a repressive change then results—usually before puberty, but now and then even much later—and from this point on without any extinction of the old feelings there appears a neurosis instead of a perversion. One may recall here the saying, "Junge Hure, alte Betschwester,"—only here youth has turned out to be much too short. The relieving of the perversion by the neurosis in the life of the same person, as well as the above mentioned distribution of perversion and hysteria in different persons of the same family, must be placed side by side with the fact that the neurosis is the negative of the perversion.

Sublimation.—The third issue in abnormal constitutional dispositions is made possible by the process of "sublimation," through which the powerful excitations from individual sources of sexuality are discharged and utilized in other spheres, so that a considerable increase of psychic capacity results from an, in itself dangerous, predisposition. This forms one the sources of artistic activity, and, according as such sublimation is complete or incomplete, the analysis of the character of highly gifted, especially of artistically disposed persons, will show any proportionate, blending between productive ability, perversion, and neurosis. A sub-species of sublimation is the suppression through reaction-formation, which, as we have found, begins even in the latency period of infancy, only to continue throughout life in favorable cases. What we call the character of a person is built up to a great extent from the material of sexual excitations; it is composed of impulses fixed since infancy and won through sublimation, and of such constructions as are destined to suppress effectually those perverse feelings which are recognized as useless. The general perverse sexual disposition of childhood can therefore be esteemed as a source of a number of our virtues, insofar as it incites their creation through the formation of reactions.

Accidental Experiences.—All other influences lose in significance when compared with the sexual discharges, shifts of repressions, and sublimations; the inner determinations for the last two processes are totally unknown to us. He who includes repressions and sublimations among constitutional predispositions, and considers them as the living manifestations of the same, has surely the right to maintain that the final structure of the sexual life is above all the result of the congenital constitution. No intelligent person, however, will dispute that in such a coöperation of factors there is also room for the modifying influences of occasional factors derived from experience in childhood and later on.

It is not easy to estimate the effectiveness of the constitutional and of the occasional factors in their relation to each other. Theory is always inclined to overestimate the first while therapeutic practice renders prominent the significance of the latter. By no means should it be forgotten that between the two there exists a relation of coöperation and not of exclusion. The constitutional factor must wait for experiences which bring it to the surface, while the occasional needs the support of the constitutional factor in order to become effective. For the majority of cases one can imagine a so-called "etiological group" in which the declining intensities of one factor become balanced by the rise in the others, but there is no reason to deny the existence of extremes at the ends of the group.

It would be still more in harmony with psychoanalytic investigation if the experiences of early childhood would get a place of preference among the occasional factors. The one etiological group then becomes split up into two which may be designated as the dispositional and the definitive groups. Constitution and occasional infantile experiences are just as coöperative in the first as disposition and later traumatic experiences in the second group. All the factors which injure the sexual development show their effect in that they produce a regression, or a return to a former phase of development.

We may now continue with our task of enumerating the factors which have become known to us as influential for the sexual development, whether they be active forces or merely manifestations of the same.

Prematurity.—Such a factor is the spontaneous sexual prematurity which can be definitely demonstrated at least in the etiology of the neuroses, though in itself it is as little adequate for causation as the other factors. It manifests itself in a breaking through, shortening, or suspending of the infantile latency period and becomes a cause of disturbances inasmuch as it provokes sexual manifestations which, either on account of the unready state of the sexual inhibitions or because of the undeveloped state of the genital system, can only carry along the character of perversions. These tendencies to perversion may either remain as such, or after the repression sets in they may become motive powers for neurotic symptoms; at all events, the sexual prematurity renders difficult the desirable later control of the sexual impulse by the higher psychic influences, and enhances the compulsive-like character which even without this prematurity would be claimed by the psychic representatives of the impulse. Sexual prematurity often runs parallel with premature intellectual development; it is found as such in the infantile history of the most distinguished and most productive individuals, and in such connection it does not seem to act as pathogenically as when appearing isolated.

Temporal Factors.—Just like prematurity, other factors, which under the designation of temporal can be added to prematurity, also demand consideration. It seems to be phylogenetically established in what sequence the individual impulsive feelings become active, and how long they can manifest themselves before they succumb to the influence of a newly appearing active impulse or to a typical repression. But both in this temporal succession as well as in the duration of the same, variations seem to occur, which must exercise a definite influence on the experience. It cannot be a matter of indifference whether a certain stream appears earlier or later than its counterstream, for the effect of a repression cannot be made retrogressive; a temporal deviation in the composition of the components regularly produces a change in the result. On the other hand impulsive feelings which appear with special intensity often come to a surprisingly rapid end, as in the case of the heterosexual attachment of the later manifest homosexuals. The strivings of childhood which manifest themselves most impetuously do not justify the fear that they will lastingly dominate the character of the grown-up; one has as much right to expect that they will disappear in order to make room for their counterparts. (Harsh masters do not rule long.) To what one may attribute such temporal confusions of the processes of development we are hardly able to suggest. A view is opened here to a deeper phalanx of biological, and perhaps also historical problems, which we have not yet approached within fighting distance.

Adhesion.—The significance of all premature sexual manifestations is enhanced by a psychic factor of unknown origin which at present can be put down only as a psychological preliminary. I believe that it is the heightened adhesion or fixedness of these impressions of the sexual life which in later neurotics, as well as in perverts, must be added for the completion of the other facts; for the same premature sexual manifestations in other persons cannot impress themselves deeply enough to repeat themselves compulsively and to succeed in prescribing the way for the sexual impulse throughout later life. Perhaps a part of the explanation for this adhesion lies in another psychic factor which we cannot miss in the causation of the neuroses, namely, in the preponderance which in the psychic life falls to the share of memory traces as compared with recent impressions. This factor is apparently dependent on the intellectual development and grows with the growth of personal culture. In contrast to this the savage has been characterized as "the unfortunate child of the moment." Owing to the oppositional relation existing between culture and the free development of sexuality, the results of which may be traced far into the formation of our life, the problem how the sexual life of the child evolves is of very little importance for the later life in the lower stages of culture and civilization, and of very great importance in the higher.

Fixation.—The influence of the psychic factors just mentioned favored the development of the accidentally experienced impulses of the infantile sexuality. The latter (especially in the form of seductions through other children or through adults) produce the material which, with the help of the former, may become fixed as a permanent disturbance. A considerable number of the deviations from the normal sexual life observed later have been thus established in neurotics and perverts from the beginning through the impressions received during the alleged sexually free period of childhood. The causation is produced by the responsiveness of the constitution, the prematurity, the quality of heightened adhesion, and the accidental excitement of the sexual impulse through outside influence.

The unsatisfactory conclusions which have resulted from this investigation of the disturbances of the sexual life is due to the fact that we as yet know too little concerning the biological processes in which the nature of sexuality consists to form from our isolated examinations a satisfactory theory for the explanation of either the normal or the pathological.

Three Contributions to the Theory of Sex: The Transformation of Puberty