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Complex beginnings

January 27, 2009 in Blogs, Mind Hacks by Vaughan

The term ‘complex’, used to refer to a mental illness or psychological hang-up, has become so common as to have entered everyday language (e.g. ‘he has an inferiority complex’) but I only just recently found out about the origin of the concept. The following is from the epic and endlessly fascinating book The Discovery of the Unconscious by Henri Ellenberger, where he discusses the use of the ‘word association test’ in early 1900s psychiatry. The story takes us through some of the most important figures in the history of 19th and 20th century mind science. From p691: The test consisted of enunciating to a subject a succession of carefully chosen words; to each of them the subject had to respond with the first word that occurred to him; the reaction time was exactly measured… It was invented by Galton , who showed how it could be used to explore the hidden recesses of the mind. It was taken over and perfected by Wundt , who attempted to experimentally establish the laws of the association of ideas. Then Aschaffenberg and Kraepelin introduced the distinction of inner and outer associations; the former are associations according to meaning, the latter according to forms of speech and sound; they could also be called semantic and verbal associations. Kraepelin showed that fatigue caused a gradual shift toward a greater proportion of verbal associations. Similar effects were observed in fever and alcoholic intoxication. The same authors compared the results of the word association test in various mental conditions. Then a new path was opened by Ziehen who found that the reaction time was was longer when the stimulus word was to something unpleasant to the subject. Sometimes, by picking out several delayed responses, one could relate them to a common underlying representation that Ziehen called gefühlsbetonter Vorstellungskomplex (emotionally charged complex of representations), or simply a complex. Carl Jung later used the test extensively as a more rigorous alternative to Freudian free association and found some interesting results. In women, erotic complexes were in the foreground with complexes related to the family and dwelling, pregnancy, children and marital situation; in older women he detected complexes showing regrets about former lovers. In men, complexes of ambition, money and striving to succeed came before erotic complexes. The description comes from a chapter about Carl Jung, who was originally a psychoanalyst but broke away from Freud’s system and developed his own. Freud’s theories, with only a few exceptions, just seem to get loopier the more you read them. Jung is interesting because on the surface his ideas seem quite barmy but are often remarkably sensible when you understand them in more detail. Despite his interest in everything from ghosts to UFOs, he always maintained these were essentially psychological phenomena that reflected important aspects of our collective culture and subconcious mind. For example, I always thought his concept of the ‘collective unconscious’ was supposed to be some sort of semi-mystical psychic connection, but in fact, he was just describing much of what is now a premise of evolutionary psychology. Namely, that by nature of being human, we may share some inherited psychological structures, common symbols or ideas – such as what ‘motherhood’ entails – that can be seen in both common behaviours and in myths and stories throughout history.

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Complex beginnings

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Learning Should Be Fun

January 19, 2009 in Blogs, Mind Hacks by Vaughan

Learning can and should be fun. This is not just a moral position, but a scientific one too. When you learn a new thing, or get a surprise, there is a shot of a chemical messenger in your brain called dopamine . Dopamine is famous among neuroscientists for its involvement in the reward and motivation systems of the brain. You won’t be surprised to learn that the reason addictive drugs are addictive is that they hack the reward circuitry that dopamine is intimately involved in. Perhaps the most addictive drug, cocaine, directly increases the amount of dopamine at work in your brain. Learning something new triggers a chemical release of the same kind as cocaine, albeit in a much more subtle manner. As methods of getting your kicks you can perhaps compare it to the difference between walking up a hill yourself or being strapped to a rocket and blasted up — slower, harder work, but a lot more sustainable and you’re in a better state to enjoy the view when you get there! The reason for this electro-chemical connection between learning and drugs of reward is that our brains have obviously been designed to find learning fun . One of the many negative things about the misconception that education is about transmitting content is the idea that any fun you have is taking time away from proper learning, and that ‘proper learning’ shouldn’t be fun. Rather than fun being a relief from learning, or a distraction from it, for most of our history, before school, learning had to be its own motivation. Brains that learnt well had more offspring, and so learning evolved to be rewarding. In lots of teaching situations we focus on the right and wrong answers to things, which is a venerable paradigm for learning, but not the only one. There is a less structured, curiosity-driven, paradigm which focusses not on what is absolutely right or wrong, but instead on what is surprising. A problem with rights and wrongs is that, for some people, the pressure of being correct gets in the way of experiencing what actually is . You can try this for yourself, either in any teaching you do, or any learning. Often we will get blocked at a particular stage in our learning. A normal response is to try harder, and to focus more on what we’re doing right, and what we’re doing wrong. Sometimes this helps, but sometimes it just digs us further into our rut. The way out of the rut is to re-focus on experiencing again. I’ll give you an example from one of the two things I know best about teaching — aikido, the japanese martial art. Aikido involves some quite intricate throws and grappling moves. Often a student is so intent on getting through the move, and on trying hard to get it right, that they become completely stuck, repeatedly doing something that doesn’t work, and usually too fast. Even if you say or show explicitly the correct movement, they can’t seem to get it. In this situation, one teaching technique I use, inspired by the ‘Inner Game’ writings of Timothy Gallway , is to tell the student to stop trying to do the move correctly, and instead do it deliberately wrong. “Try pushing over this way to the left”, I’ll say, “Now try the opposite over to the right. Now try high, or low. Which is easiest?”. By removing the obligation to get the move correct I hope to give permission to the student to just experience the effect they are having on their partner’s balance. Once they can tune into this they can figure out for themselves what the right thing to do is, without me having to tell them. However you do it, if you can get out of the rut of right and wrong you free up a natural capacity for experience-led, curiosity-driven learning. Soon you’ll be flying along again, experiencing the learning equivalent of the jogger’s high, and all thanks to that chemical messenger dopamine and a brain that’s evolved to find things out for itself, and feel good while doing it. Part of a series. #1 Learning Makes Itself Invisible Cross-posted at schoolofeverything.com Image: jogging on the beach by Naama

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More on secrecy behind the new book of human troubles

January 2, 2009 in Blogs, Mind Hacks by Vaughan

Advances in the History of Psychology has just alerted me to a new programme on NPR Radio about the debates over the ‘in revision’ version of the American Psychiatric Association’s diagnostic manual that defines mental illness for significant parts of the world. It covers some of the most contentious potential diagnoses in the to-be-released DSM V and doesn’t have the most balanced discussion in some cases (e.g. the guy claiming that people against the diagnoses of gender identity disorder – transexualism – just ‘see the stigma’ of the condition). Most interestingly though, it quotes part of the non-disclosure agreement that members of the DSM committee have had to sign, making a legally binding restriction against discussing: All work product unpublished manuscripts and draft and other prepublication materials, group discussions, internal correspondence, information about the development process and any other written or unwritten information, in any form, that emanates from, or relates to, my work with the APA task force or work group. Yes, there is a legal restriction banning members from discussing the development of one of the most important documents in medicine. The DSM committee vice-chair Darrel Regier says this is a good thing because otherwise “it would just be cacophony and mass confusion” – presumably referring to the annoying tendency of public debate to raise points that you hadn’t thought of before. Diagnoses decided by an unelected committee in secret sessions that are legally prevented from discussing their work. Science marches on. Link to NPR Radio on DSM-V development (via AHP ).

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More on secrecy behind the new book of human troubles

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A very rough guide to highlights of 2008

December 31, 2008 in Blogs, Mind Hacks by Vaughan

A not very thorough list of my personal 2008 highlights in mind and brain news, dredged from my memory and reproduced for your reading pleasure: Funniest (unintentional) USA Today publishing an alarmist story about ‘digital drugs’ that can, according to the article, mimic the effects of alcohol, marijuana, LSD, crack, heroin, sex, heaven and hell. Sadly not true, although hilarious to read. Funniest (intentional) The Web Therapy web series staring Lisa Kudrow as an incompetent psychologist. Wonderfully produced, cleverly satirical and very funny to boot. Best film The English Surgeon . A profoundly beautiful documentary about the work of London-based neurosurgeon Henry Marsh and his colleague Igor Kurilets in the Ukraine. Do not miss it. See the comments! Best podcast / radio episode RadioLab’s delicious programme on Orson Well’s War of the Worlds broadcast and its subsequent psychological impact. Just pure audio delightfulness. Best video lecture A gripping lecture at the University of California by historian Prof Alfred McCoy on the ‘psychological torture: a CIA history’. Most interesting new concept Brain-computer interfaces to weapons systems pose problems for the definition of a ‘war crime’ if they’re triggered preconsciously, according to an interesting analysis by lawyer Stephen White. Most interesting interview A tie between sociologist Harry Collins discussing his work on the social interactions of physicists and what this tells us about what we have to do to be considered an expert and what types of expertise there are, and an Neurophilosophy interview with Heather Perry who trepanned herself and is remarkably reflective about the experience. Most useful academic article Nikos Logothetis’ article in Nature about what fMRI is really measuring and what we can and can’t infer about the mind and brain from neuroimaging experiment. Best example of neurobabble The cover article on neuroscience-based management in an issue of HR Magazine which has to be read to be believed. Or maybe that’s just your basal ganglia talking. Most tangential post I start off talking about blond girls in t-shirts and end up talking about philosophy of mind. Actually, usually happens the other way round in real life. Best cognitive science art project Artificially intelligence punk rock pogo robots . Enough said. Best random clip of TV documentary A TV presenter is intravenously injected with differing mixtures of the active ingredients of cannabis as part of the BBC documentary Should I Smoke Dope? . Most overdue decision The American Psychological Association banning participation in torture. Did it really need all the fuss? To the bunkers! Most likely to hasten the coming robot war Pentagon requests robot packs to hunt humans. Uh huh.

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A very rough guide to highlights of 2008

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Voodoo correlations in social brain studies

December 29, 2008 in Blogs, Mind Hacks by Vaughan

I’ve just come across a bombshell of a paper that looked at numerous headline studies on the cognitive neuroscience of social interaction and found that many contained statistically impossible or spurious correlations between behaviour and brain activity. The article is currently ‘in press’ for the journal Perspectives on Psychological Science but the preprint is available online as a pdf file. Social cognitive neuroscience is a hot new area and many of the headline studies use fMRI brain imaging to look at how activity in the brain is correlated with social decision-making or perception. This new analysis, led by neuroscientist Edward Vul , was inspired by the fact that some of these correlations seem to good to be true, and so the research team investigated. The abstract of their study is below, and it’s powerful stuff – indicating that many of the results are due to flawed analyses. If you’re not familiar with neuroimaging research it might be useful to know that what a ‘ voxel ‘ is before reading the abstract. Essentially, brain scanners digitally divide the scanned area into a block of tiny boxes and each one of these is called a voxel (think 3D pixel). This allows the scans to be analysed by comparing the activity or tissue density in each voxel to another measure – which could be the same voxel during another scan, or it could be something entirely different, such as a measure of emotion or social decision-making. The newly emerging field of Social Neuroscience has drawn much attention in recent years, with high-profile studies frequently reporting extremely high (e.g., > .8) correlations between behavioral and self-report measures of personality or emotion and measures of brain activation obtained using fMRI. We show that these correlations often exceed what is statistically possible assuming the (evidently rather limited) reliability of both fMRI and personality/emotion measures. The implausibly high correlations are all the more puzzling because social-neuroscience method sections rarely contain sufficient detail to ascertain how these correlations were obtained. We surveyed authors of 54 articles that reported findings of this kind to determine the details of their analyses. More than half acknowledged using a strategy that computes separate correlations for individual voxels, and reports means of just the subset of voxels exceeding chosen thresholds. We show how this non-independent analysis grossly inflates correlations, while yielding reassuring-looking scattergrams. This analysis technique was used to obtain the vast majority of the implausibly high correlations in our survey sample. In addition, we argue that other analysis problems likely created entirely spurious correlations in some cases. We outline how the data from these studies could be reanalyzed with unbiased methods to provide the field with accurate estimates of the correlations in question. We urge authors to perform such reanalyses and to correct the scientific record. The paper notes that some of the most widely-reported studies in recent years contain this flaw and this new paper has the potential to really shake up the world of social cognitive neuroscience. pdf of preprint of ‘Voodoo Correlations in Social Neuroscience’.

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Voodoo correlations in social brain studies

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2008-12-12 Spike activity

December 12, 2008 in Blogs, Mind Hacks by Vaughan

Quick links from the past week in mind and brain news: Bad Science unclothes the latest in the line of bogus formula-based adverts – this time for the naughtiness of Britney’s breasts. Hello Google porn surfers. Enjoy the neuroscience! Interesting memory manipulation study reported by New Scientist who include a spurious reference to the brain in the title. Cognitive Daily has a one two punch on whether seeing objects in a scene help us remember them. Hypothesis / conclusion confusion hits BBC News as a study on HSV1 virus in Alzheimer’s plaques somehow reported as cold sores ‘an Alzheimer’s risk’. Neurophilosophy has a good piece on whether the brain’s fear response is culture-specific. [A small amount of the variance in] the quality of a man’s sperm depends on [well, correlates with] how intelligent he is, reports The Economist . Neuroanthropology is one year old and celebrates with their top 10 posts. The 50 greatest movie drug trips are listed by Den of Geek , although depending on how you read Rosemary’s Baby it mightn’t be a drug trip at all. She could be becoming psychotic. Lack of sleep has genetic link with type 2 diabetes, reports Science News . Advances in the History of Psychology has an excellent piece on systematic disobedience in Milgram’s studies. Daniel Dennett and Andy Clark write in to New Scientist to react to claims of a ‘non-materialist neuroscience’. You can guess the rest. The New York Times explores our sense of touch : primal, acute and easily duped. Brain-to-computer interfaces are new portable, inexpensive, but are not ready for prime time yet, reports Scientific American . Science Daily reports on the effects of unconscious constant exposure to adverts . Some fantastic videos of developmental trajectories in cortical thickening are discussed by Developing Intelligence . Scientific American Mind Matters blog reports of the role of the serotonin transporter gene 5-HTTLPR in affecting how people are affected by trauma . Women more like to hand out phone number when most fertile , reports New Scientist . Channel N finds an interesting video on the irresitible pull of irrational behaviour.

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2008-12-12 Spike activity

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Freud – The Prog Rock Musical

December 6, 2008 in Blogs, Mind Hacks by Vaughan

If psychoanalysis were a type of music, it would obviously be prog rock , as despite the fact it is largely a triumph of style over substance there are still a few gems hidden among all the self-indulgent widdling. So why hasn’t anyone made a Freudian prog rock concept album you ask? The answer is that they have, but we’ve just repressed it. Scottish singer-songwriter Eric Woolfson started a band in the mid-1970s with ex-Pink Floyd producer Alan Parsons . Rather narcissistically, the group was named The Alan Parsons Project . In the late 80s they decided to create a concept album based on the theories of Sigmund Freud, entitled Freudiana . In a great irony that has been repeated throughout the history of psychoanalysis, their work on a theory that attempts to resolve conflicts resulted in them falling out and splitting up. The album appeared in 1990, however, credited to Woolfson, and with a rather bizarre list of contributors. To name but a few, it includes contributions from Leo Sayer, The Flying Pickets, Kiki Dee and, I titter ye not, Frankie Howerd. So what does an artist do when their labour of love destroys their creative partnership? Why, they turn it into a German language musical that only plays in Vienna before being bogged down in legal wranglings over copyright. There’s a clip on YouTube, and it’s, erm… very special. Glam Kraut Freud Rock, if you will. Actually, most of the tracks from the album are on YouTube, so if you want to listen to The Nirvana Principle, Little Hans, Dora, Beyond the Pleasure Principle or No One Can Love You Better Than Me you should be able to find them. Link to Wikipedia page on Freudiana . Link to clip of Freudiana the musical.

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Freud – The Prog Rock Musical

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2008-12-05 Spike activity

December 5, 2008 in Blogs, Mind Hacks by Vaughan

Quick links from the past week in mind and brain news: Neurophilosophy discusses a newly discovered form of synaesthesia – touch-emotion synaesthesia. Psychological highlights from the most recent Society for Neuroscience conference are collected by the BPS Research Digest . Discover Magazine has a punchy bio of Noam Chomsky . Antidepressants that leak into the water supply affect fishes’ brains, according to research covered by Science News . A whole lotta coverage of the ‘body swapping’ research has appeared over the last few days. The best has been an article on Not Exactly Rocket Science , a piece from The New York Times and a write-up from Wired . New Scientist picks up on research suggesting psychopaths have an eye for the underdog. A review of a new book on the author of Roget’s thesaurus sounds fascinating – “The Man Who Made Lists: Love, Death, Madness, and the Creation of Roget’s Thesaurus” – and appears in the American Journal of Psychiatry . Neuronarrative interviews Jonah Lehrer and asks him about the art, mind and brain. A rather breathless title but an interesting write-up of an experiment finding the same thing seems more painful if someone deliberately inflicts it – from Discover . The British Journal of Psychiatry has a study showing that IQ predicts likelihood of murder – the higher your IQ, the less likely you are to get knocked off. The U.N. investigates electromagnetic terrorism – a somewhat bizarre episode reported by Wired . The Washington Post looks at a recent neuroscience study perhaps suggesting the origins of the ‘ senior moment ‘. Obama invents a new emotion, reports Slate . NPR Radio has a fascinating short segment suggesting that colour perception switches sides in brain during development. A letter in the American Journal of Psychiatry discusses web-based communities of possibly delusional people and comes to a similar conclusion as myself regarding the validity of the diagnostic criteria. The New York Times reports on the politics of looking calm and unruffled vs looking concerned. Baby boys may show spatial supremacy , have robot army, will crush puny humans under foot, reports Science News . I paraphrased the last two points you understand. The New York Times has a curious piece on the possible psychological effect (based on nothing but pure speculation it must be said) of which time watches are set to when the appear in adverts. A follow-up from our piece on Rudolpfo Llinás discusses the role of brain oscillations in schizophrenia (thanks CopperKettle).

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2008-12-05 Spike activity

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Thanks for the memories HM

December 3, 2008 in Blogs, Mind Hacks by Vaughan

The densely amnesic Patient HM , one of the most famous and important patients in the history of neuroscience, has passed away . HM, now revealed as Henry G. Molaison, suffered from temporal lobe epilepsy that was not helped by existing drugs and so was referred to neurosurgeon William Scoville in 1953. Scoville attempted a new type of operation to remove the parts of the brain which triggered the seizures, cutting out the majority of the hippocampus on both sides of the brain, along with the amygdala and parahippocampal gyrus . This left HM with a dense antereograde amnesia, meaning that while his memory for pre-surgery events was generally very good, he was unable to create new conscious long-term memories. His ability to learn new skills and obtain conditioned associations remained intact, however, and the differences in his memory abilities and the precise knowledge of which parts of the brain were missing allowed some of the first insights into the neuropsychology of memory. The initial study on HM and his dense amnesia was first published in 1957 by Scoville and the young psychologist Brenda Milner . It has since become one of the most widely cited and widely taught of all neuropsychology case studies. However, HM continued to participate in research studies since his initial appearance in the scientific literature and was known among researchers for his warm and easy going personality. The most recent study on HM was published only this year and examined the linguistic content of his crossword puzzles, of which he’d been a fan of for the whole of his adult life. The study examined whether his language skills had been affected by years of dense amnesia. They hadn’t, suggesting that once acquired, the maintenance of written language skills doesn’t seem to require intact medial temporal lobes. Much of the later work with HM was completed in partnership with neuropsychologist Suzanne Corkin , who wrote an article [ pdf ] for Nature Reviews Neuroscience in 2002 that was part tribute and part research summary, detailing his massive contribution to our understanding of memory. Link to announcement of HM’s death (via MeFi ). Link to classic case study. pdf of 2002 review article.

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Thanks for the memories HM

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The dead stay with us

December 2, 2008 in Blogs, Mind Hacks by Vaughan

Scientific American Mind Matter’s blog has just published an article I wrote on grief hallucinations, the remarkably common experience of seeing, hearing, touching or sensing our loved ones after they’ve passed away. Grief hallucinations are a normal reaction to having someone close to you die and are a common part of the mourning process, but it’s remarkable how often people are embarrassed to say they’ve had the experience because they worry what others might think. I was inspired to write the piece after reading a wonderful paper, published in Transcultural Psychiatry , by psychiatrist Carlos Sluzki on the cultural significance of one Hispanic lady’s post-grief hallucinations. My reference to the shadow cat draws on the intro to Sluzki’s article which must be one of the most beautiful openings to an academic article I’ve ever read. I note that there’s not a great deal of research on grief hallucinations, despite how common they are, although I picked up on a study during the last few days which addressed these curious phenomena in a study on psychotic symptoms. A thorough population survey in France that appeared earlier this year found that grief hallucinations were the most frequent ‘psychotic’ symptom in individuals without mental illness. It’s also interesting to read the comments that the article has generated. I really seemed to have pushed a few buttons. I’m quite proud of the piece though, and it’s a vastly under-discussed and under-researched topic that affects huge numbers of people. Link to SciAm piece ‘Ghost Stories: Visits from the Deceased’. Link to Carlos Sluzki’s excellent article. Link to DOI for same.

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The dead stay with us