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Scientists Afflict Computers With Schizophrenia 143

An anonymous reader writes "Computer networks that can't forget fast enough can show symptoms of of virtual schizophrenia, giving researchers new clues to the inner workings of schizophrenic brains, say researchers at the University of Texas at Austin and Yale University. In their experiments, the scientists used a virtual neural network to simulate an excessive release of dopamine in the brain and found that the network recalled memories in a distinctly schizophrenic-like fashion. The results bolster a hypothesis known in schizophrenia circles as the hyperlearning hypothesis, which posits that people suffering from schizophrenia have brains that lose the ability to forget or ignore as much as they normally would. Without forgetting, they lose the ability to extract what's meaningful out of the immensity of stimuli the brain encounters."
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Scientists Afflict Computers With Schizophrenia

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  • by Hatta ( 162192 ) on Friday May 06, 2011 @11:27AM (#36048796) Journal

    Do schizophrenics typically have eidetic memories? This is not a symptom I was aware of.

    • by Anonymous Coward on Friday May 06, 2011 @12:29PM (#36049550)

      the medications supposedly help erase memories. at least my nurse seemed to think they do. In my case the medications seem to help, but I wouldn't stake anything important on so called anti-psychotics or even atypical anti psychotics either.

      in my case i drink heavily filtered water, avoid most sugar natural or not, and avoid artificial sweeteners, avoid all caffeine, and the only thing i noticed is my thirst dropped 50% and devoid of caffeine and sugar that i get less dizzy from my medications. i also have an increase in my conscious. e.g. i am now extremely worried (but not paranoid) that i bragged about knowing things i didn't know at the time, and i realized i was asking for things i didn't need or want in my life. if i could change the past i would undo asking for things i didn't need or even want, it was like someone thought i needed to have that kind of thought and made me think it for myself.

    • by LambdaWolf ( 1561517 ) on Friday May 06, 2011 @03:06PM (#36051292)

      Do schizophrenics typically have eidetic memories? This is not a symptom I was aware of.

      I've often read that remembering something is a constructive process. I tend to think of it like checking out a revision from source control software. All it has are a bunch of diffs and pointers, and it executes a process on them to construct a snapshot of what the code looked like at some particular time. From that perspective, the snapshot is a new piece of output, even though it's cached information from the user's perspective. Human memory is said to work the same way: it's reassembled, not retrieved.

      So, if a person has eidetic memory, then one would expect them to have a better than average "ability to extract what's meaningful out of the immensity of stimuli the brain encounters". On the other hand, since a defining trait of eidetic memory (as the term is often used) is being able to recall any detail and not just "what's meaningful", it must also entail exceptional ability to store and recall mass amounts of raw data (the diffs and pointers in my analogy). But nonetheless, I'd expect them to be exceptionally strong at filtering and reconstruction as well if they're able to form that data into coherent memories and verbalize them.

      Then I suppose the hyperlearning hypothesis is saying that the reconstruction process breaks down because the data is too abundant and disorganized. Maybe I can extend the file storage analogy a little further: a hard disk that's so full that you can't defrag it? Or one where deleted files stay behind and come up instead of whatever you tried to overwrite on those disk sectors? Corrupt file system table?

      IANAN/P (I am not a neurologist/psychologist). This is all my layman's, Wikipedia-level understanding and would welcome elaborations or corrections.

    • Ok,
      Schizophrenics have less brown matter volume, this is the bit that joins things together, white matter focuses on 'tasks' (crudely)
      Over time both brown and white matter volume go down (note this is volume of matter that's observed, not number of neurons.. at least for a good good while)
      (though they say 'neuro toxicity' it's a load of unsubstantiated crap)
      Oddly, new research has shown that neurons migrate to points of higher entropy to solve problems then migrate back again if their not needed, possibly self terminating if there really not needed. Also that memory's are related to density...
      People with Schizophrenia (all 7-8 of the ones I know personally any how)... all have a penchant for the origin... (there are some questions you can ask them to get more specific's on this, and they do have in-site into it... but that's for me to publish)...
      That would also relate to and increase in white / brown matter as the entropy of thought was on those areas (origin and difficulty connecting them).

      What they do is give people pills that make them chronically retarded and ignorant (hey ignorance is bliss) and oddly when you try to stop the brain working it seems to fix things (bullets in the head also have this effect and less patients have complained).... There is an 'ethical' (NEURO TOXICITY) ban on doing any research into any kind of alternative treatments (like 'stress reduction, education, meditation techniques, progression etc...).. in-fact they try to put people on them at even the slightest whiff on anything that may turn them into the next John Nash (since we can't go giving Nobel Prizes to any more mad people)

      Only other real indicators are 'stress' very strong correlation and mioline (Lorenzo save me and my bad spelling)... and frontal lobe...
      The frontal lobe is strongly related to 'mirror nurons' (look that up, recently released info) that basically relate to your sense of self and other people. Also related to psychopathy (ASPD)

      Recently rejection [I don't think your ideas are worthy, F-] has been directly linked to the area of the brain that pain from heat is linked to.

      Lack of miolin makes your brain work slower, so quite why their using that as a treatment method when it's an indicator fuck only knows...

      Spliff also make you more focused and less stressed.... Well according to everyone I know who smokes them... I wonder what the link could be, relative number (not strength) of doses compared to peers (liked more) is the only link they've found to the cure for cancer.

      On a side line:
      If you know any political/world history more than the last century... look up stress testing or pyramid saving schemes.

    • by blincoln ( 592401 ) on Friday May 06, 2011 @07:10PM (#36053418) Homepage Journal

      I've known a couple of people with schizophrenia and other psychoses, and when they were in the middle of an episode, they would often recall trivial details from the past and incorporate them into what they were talking about. It was actually a little unnerving, sometimes, and I'm someone who tends to remember trivial details better than most people. I didn't really make the "eidetic memory" connection until reading this article. I always assumed that it was just a random sampling of trivia that they had remembered like that. I can easily imagine a brain getting overwhelmed if they're actually dealing with a flood of information at that level of detail.

    • There very specific about things, esp the origin of things and very black and white.

      Go ask one of them they've got that in-site at least.
  • Interesting (Score:4, Interesting)

    by somersault ( 912633 ) on Friday May 06, 2011 @11:28AM (#36048824) Homepage Journal

    I don't quite have schizophrenia, but I do tend to remember a lot and overthink things. Spending time disconnected from digital stimulus (for example, going for a decent walk every day, without bringing your phone) helps give your brain time to process everything.

    I'd think the effect of staying always connected is even worse for schizophrenics if this study is correct.

    On a different note, Slashdot has finally fixed its fortune cookie generator! Only took something like a week :p

    • Re:Interesting (Score:2, Offtopic)

      by treeves ( 963993 ) on Friday May 06, 2011 @12:18PM (#36049424) Homepage Journal

      As for your last sentence, I don't think so. Here's the quote at the bottom of my page right now:

      Try the Moo Shu Pork. It is especially good today. % Try to get all of your posthumous medals in advance. % Try to have as good a life as you can under the circumstances. % Try to relax and enjoy the crisis. -- Ashleigh Brilliant % Try to value useful qualities in one who loves you. % Tuesday After Lunch is the cosmic time of the week. % Tuesday is the Wednesday of the rest of your life. % What happened last night can happen again. % While you recently had your problems on the run, they've regrouped and are making another attack. % Write yourself a threatening letter and pen a defiant reply. % You are a bundle of energy, always on the go. % You are a fluke of the universe; you have no right to be here. % You are a very redundant person, that's what kind of person you are. % You are always busy. % You are as I am with You. % You are capable of planning your future. % You are confused; but this is your normal state. % You are deeply attached to your friends and acquaintances. % You are destined to become the commandant of the fighting men of the department of transportation. % You are dishonest, but never to the point of hurting a friend. % You are fairminded, just and loving. % You are farsighted, a good planner, an ardent lover, and a faithful friend. % You are fighting for survival in your own sweet and gentle way. % You are going to have a new love affair. % You are magnetic in your bearing. % You are not dead yet. But watch for further reports. % You are number 6! Who is number one? % You are only young once, but you can stay immature indefinitely. % You are scrupulously honest, frank, and straightforward. Therefore you have few friends. % You are sick, twisted and perverted. I like that in a person. % You are so boring that when I see you my feet go to sleep. % You are standing on my toes. % You are taking yourself far too seriously. % You are the only person to ever get this message. % You are wise, witty, and wonderful, but you spend too much time reading this sort of trash. % You attempt things that you do not even plan because of your extreme stupidity. % You can create your own opportunities this week. Blackmail a senior executive. % You can do very well in speculation where land or anything to do with dirt is concerned. % You can rent this space for only $5 a week. % You could live a better life, if you had a better mind and a better body. % You definitely intend to start living sometime soon. % You dialed 5483. % You display the wonderful traits of charm and courtesy. % You don't become a failure until you're satisfied with being one. % You enjoy the company of other people. % You feel a whole lot more like you do now than you did when you used to. % You fill a much-needed gap. % You get along very well with everyone except animals and people. % You had some happiness once, but your parents moved away, and you had to leave it behind. % You have a deep appreciation of the arts and music. % You have a deep interest in all that is artistic. % You have a reputation for being thoroughly reliable and trustworthy. A pity that it's totally undeserved. % You have a strong appeal for members of the opposite sex. % You have a strong appeal for members of your own sex. % You have a strong desire for a home and your family interests come first. % You have a truly strong individuality. % You have a will that can be influenced by all with whom you come in contact. % You have an ability to sense and know higher truth. % You have an ambitious nature and may make a name for yourself. % You have an unusual equipment for success. Be sure to use it properly. % You have an unusual magnetic personality. Don't walk too close to metal objects which are not fastened down. % You have an unusual understanding of the problems of human relationships. % You have been selected for a secret mission. % You have Egyptian flu: you're going to be a mummy. % You have had a long-term stimulation relative to business. % Y

    • by Rary ( 566291 ) on Friday May 06, 2011 @12:21PM (#36049450)

      On a different note, Slashdot has finally fixed its fortune cookie generator!

      You call that fixed?!? I don't know what you're seeing, but over here on my screen, it's currently showing about 200 different quotes all separated by "%". I wouldn't exactly call that "fixed".

      I really wish the Slashdot developers would figure out how to set up a separate test environment, rather than just coding directly on the production servers, which seems to be how things are done here.

    • by Ancantus ( 1926920 ) on Friday May 06, 2011 @12:22PM (#36049480) Homepage Journal

      Right now for me its displaying a huge block of fortune file type text, I assume it is displaying the first fortune, then going right passed the % and keeps going till it hits a limit. Well its way better than lemmings, that quote was old the first day.

    • by TaoPhoenix ( 980487 ) <TaoPhoenix@yahoo.com> on Friday May 06, 2011 @12:23PM (#36049494) Journal

      Uh, the fortune cookie generator exploded on me.

      Meanwhile, Hi Mods. this is On Topic because this is what TFA says being schizophrenic and unable to forget is like!

      Here we go!
      --
      Try the Moo Shu Pork. It is especially good today. % Try to get all of your posthumous medals in advance. % Try to have as good a life as you can under the circumstances. % Try to relax and enjoy the crisis. -- Ashleigh Brilliant % Try to value useful qualities in one who loves you. % Tuesday After Lunch is the cosmic time of the week. % Tuesday is the Wednesday of the rest of your life. % What happened last night can happen again. % While you recently had your problems on the run, they've regrouped and are making another attack. % Write yourself a threatening letter and pen a defiant reply. % You are a bundle of energy, always on the go. % You are a fluke of the universe; you have no right to be here. % You are a very redundant person, that's what kind of person you are. % You are always busy. % You are as I am with You. % You are capable of planning your future. % You are confused; but this is your normal state. % You are deeply attached to your friends and acquaintances. % You are destined to become the commandant of the fighting men of the department of transportation. % You are dishonest, but never to the point of hurting a friend. % You are fairminded, just and loving. % You are farsighted, a good planner, an ardent lover, and a faithful friend. % You are fighting for survival in your own sweet and gentle way. % You are going to have a new love affair. % You are magnetic in your bearing. % You are not dead yet. But watch for further reports. % You are number 6! Who is number one? % You are only young once, but you can stay immature indefinitely. % You are scrupulously honest, frank, and straightforward. Therefore you have few friends. % You are sick, twisted and perverted. I like that in a person. % You are so boring that when I see you my feet go to sleep. % You are standing on my toes. % You are taking yourself far too seriously. % You are the only person to ever get this message. % You are wise, witty, and wonderful, but you spend too much time reading this sort of trash. % You attempt things that you do not even plan because of your extreme stupidity. % You can create your own opportunities this week. Blackmail a senior executive. % You can do very well in speculation where land or anything to do with dirt is concerned. % You can rent this space for only $5 a week. % You could live a better life, if you had a better mind and a better body. % You definitely intend to start living sometime soon. % You dialed 5483. % You display the wonderful traits of charm and courtesy. % You don't become a failure until you're satisfied with being one. % You enjoy the company of other people. % You feel a whole lot more like you do now than you did when you used to. % You fill a much-needed gap. % You get along very well with everyone except animals and people. % You had some happiness once, but your parents moved away, and you had to leave it behind. % You have a deep appreciation of the arts and music. % You have a deep interest in all that is artistic. % You have a reputation for being thoroughly reliable and trustworthy. A pity that it's totally undeserved. % You have a strong appeal for members of the opposite sex. % You have a strong appeal for members of your own sex. % You have a strong desire for a home and your family interests come first. % You have a truly strong individuality. % You have a will that can be influenced by all with whom you come in contact. % You have an ability to sense and know higher truth. % You have an ambitious nature and may make a name for yourself. % You have an unusual equipment for success. Be sure to use it properly. % You have an unusual magnetic personality. Don't walk too close to metal objects which are not fastened down. % You have an unusual understanding of the problems of human relationships. % You have been selected for a secret mission. % You have Egyptian flu: you're going to be a

  • by Zephyn ( 415698 ) on Friday May 06, 2011 @11:29AM (#36048844)

    "which posits that people suffering from schizophrenia have brains that lose the ability to forget or ignore as much as they normally would."

    So the fact that it sometimes takes me twenty minutes to find my keys in the morning is a sign that I'm sane? That's oddly comforting.

  • by h4rr4r ( 612664 ) on Friday May 06, 2011 @11:30AM (#36048856)

    Just tell the Schizophrenics the hop count of their crazy idea is 16. Yet another problem solved with poison reverse.

  • by SanityInAnarchy ( 655584 ) <ninja@slaphack.com> on Friday May 06, 2011 @11:34AM (#36048898) Journal

    While the actual terms were likely off -- "stripped her amygdala" doesn't make a lot of sense -- this sounds like exactly what River Tam is supposed to have.

    Teaching this to computers doesn't seem like a great idea, though. "This was a triumph" indeed.

  • by Anonymous Coward on Friday May 06, 2011 @11:43AM (#36049000)

    Artificial human intelligence at last!!!

  • by poetri ( 2119282 ) on Friday May 06, 2011 @11:46AM (#36049046)
    very good info. make the analogy of schizophrenia with a computer network
  • Maybe:
    % rm /tmp
    I"m sorry, Dave, I can't do that.

  • "In one answer, for instance, DISCERN claimed responsibility for a terrorist bombing."

    Interesting methodology. I doubt though that it has a relationship to real schizo.

  • Cool so installing Windows makes one a Scientist

  • by teidou ( 651247 ) <tait@NOSPam.fitis.com> on Friday May 06, 2011 @12:02PM (#36049232) Homepage
    Sometimes I wonder how people develop their hypotheses. In this case, I'm wonder whether one of the researchers may have been struck by Morrison's Joker in the Batman Comic Arkham Asylum - in which a researcher describes the joker as hyper-sane, unable to filter out stimulus from the world around. Hmm.
    • by easterberry ( 1826250 ) on Friday May 06, 2011 @12:59PM (#36049968)

      I assume they studied the brains of schizophrenics, found they were producing a lot more dopamine than normal and then tried to figure out what that would do to a person based on what purposes dopamine serves and what symptoms could possibly be caused by those purposed going into overdrive.

    • by hedwards ( 940851 ) on Friday May 06, 2011 @04:42PM (#36052148)

      It's been pretty well established that schizophrenics are rarely truly incapable of communication, just that frequently they encode the messages in an ad hoc register known only to them. I remember my abnormal psych book quoting patients that had been doing that prior to treatment. I've found that it's been fairly accurate in the limited number of people I've met that communicate like that. But if you've got access to the code book you can often times decode the speech. It's not easy because it requires a lot of working memory, but the speech is usually not completely incomprehensible. Of course it really depends which type of schizophrenia you're referring to.

      The communication style itself depends heavily upon a large memory capacity and increased ability to infer meaning. I don't personally have enough experience dealing with folks with schizophrenia to really know how accurate that perception is, but my observations would definitely be consistent with that.

      I also spent a period schizoaffective and my memory back then was a lot better than it is now. I'd rarely if ever forget anything, and I'm still haunted by that. It's inherently unsettling to find that somebody you sat on the same bus with several months previous has been gunned down in a murder suicide.

      I wouldn't care to suggest a causal relation there, but as my social interactions improved my memory eventually started to diminish. Oddly enough, I also started to dream at night rather than during the day.

  • by Charliemopps ( 1157495 ) on Friday May 06, 2011 @12:03PM (#36049246)
    So these "Scientists" think the problem with "schizophrenic" people is they can't forget enough eh? I think the problem is what we CAN remember that no one else can. What's next? You're going to start wiping our memories for us? You already TRIED THAT!!!! IT DIDN'T WORK DID IT?!?! If you think I'm getting on that damned ship again and going to the pyramid, you're wrong. Johns told me about your plan and I'm on to you! The four corner day will supplant your illusion of euclidean time. ALL HAIL THE TIME CUBE!!!!! http://www.timecube.com/
  • by Lumpy ( 12016 ) on Friday May 06, 2011 @12:05PM (#36049262) Homepage

    It's called installing Windows Me.

    Actually windows 95 and 98 were not much better....

  • by Mysteray ( 713473 ) on Friday May 06, 2011 @12:06PM (#36049266)
    Cool, I'd proposed something along this line of research in a talk I gave at Shmoocon this year [shmoocon.org].

    OK I'll go read TFA now.

  • by siglercm ( 6059 ) on Friday May 06, 2011 @12:07PM (#36049288) Journal

    ... I'm afraid I can't help you with your research on schizophrenia....

  • It's really quite excellent -- and vaguely linked to his Cryptonomicon universe...

    http://www.vanemden.com/books/neals/jipi.html [vanemden.com]

  • by Broolucks ( 1978922 ) on Friday May 06, 2011 @12:28PM (#36049542)

    I find the summary a bit confusing, though. What I have heard before is that the schizophrenic brain is poor at filtering out stimuli, meaning that unimportant details will stand out as much as important ones. For instance, it might have trouble filtering out ambient noise, so whereas a normal brain will cut off processing early on, a schizophrenic brain will process the noise the same way it would process salient, meaningful sounds. So what might happen is that the phoneme processing part of the brain will receive ambient noise as input and will make out voices and whispers out of it, because that is its job, and then these will be manipulated and interpreted as a conversation - maybe neighbors plotting against you, because why else would you be paying attention?

    Stimuli that should never make it past saliency processing get dispatched to the brain, which assumes that if it got this far, it must be meaningful (this is normally a fair assumption). From then on, it will "learn" to find meaning in noise, hence visual or auditive hallucinations, delusions, etc. From what I can gather, this study shows that an excess of dopamine could inhibit normal filtering functions, hence the "hyperlearning" on stimuli that should be thrown out, but isn't.

    • That's autistic spectrum as well... and defiantly not known for getting [personally] attached to things. maybe pissed off, but, like most people... just more sensitive... often less attached than 'typical' people.

      Both are known for 'black and white' thinking, and loads of trippy shit. the schizophrenics just get attached to it. (if they believe in themselves)... My mate got attached to his laptop... man and machine... you'd think you where molesting him if you went near it.... would only let one person sort it out for him.... he knew why. Quite sane, certainly more sane than Ayn Rand.
    • by Bones3D_mac ( 324952 ) on Friday May 06, 2011 @11:27PM (#36054490)

      Actually, I have an issue like this that makes me very uncomfortable around crowds. For example, when I go to a restaurant, I can hear every conversation going on around me with the same relevance as someone sitting next to me. It drives me nuts because it prevents me from enjoying a conversation with the people I actuslly care about. In that situation, I either have to process everything at once and parse out the stuff relevant to who I'm trying to talk to, or block out everything as white noise and not participate at all. I also get a bit nauseated from dealing with so much info at one time.

      Needless to say, I don't go out much and prefer to be in locations where I control the environment. Usually keeping things dark and quiet.

  • Did Slashdot's fortune thing at the bottom of the page just totally wig out?
  • by Kamiza Ikioi ( 893310 ) on Friday May 06, 2011 @12:45PM (#36049796)

    Yes, I know it's not THE opposite, but that's what it sounds like to me.

    BTW, what's with the 5000 fortune cookies showing up in the footer of slashdot?!?

  • by ShanghaiBill ( 739463 ) on Friday May 06, 2011 @12:58PM (#36049950)

    The problem with schizo people is not that they have too many "normal" memories. But that they remember too much of the "wrong" things.

    Have you ever woken up from a dream, and had difficulty, at least for a few moments, figuring out what is real and what is not? After those few moments, your mind clears, and you realize that your dream made no sense at all, and you wonder how you could have ever thought it was real. By the time you finish breakfast, the dream is forgotten.

    This is what schizophrenia is like. Except your mind doesn't clear, you don't forget, and you don't stop dreaming when you wake up. I think the cure to schizophrenia will come when we find the brain's "time to wake up" switch, and figure out why it doesn't always work.

    • I've been on antipsychotics for a while, and I can attest to the fact that my memory is significantly worse than before I was on them. Part of the action against schizophrenia (not me, since I am diagnosed bipolar) seems to be reducing what you can recall in the hope of reducing the disruptive memories that one could think that schizophrenics recall. That said, far too little is known about mental health issues for anybody (professional or otherwise) to really say anything concrete.
  • Schizophrenia is a chronic physical (brain) illness, due to brain (nature/nurture) structure and/or chemistry.

    To compare schizophrenia a human malady to fycked-up technology application is sick. Texas universities probably have creationist classes and students believing amazon, sony, and pc/tablet crash, because it is godddd's will. As always, "Reality is self-induced hallucination."

    If a university wants to model a schizophrenic state using technology after we have proof of the physical causes, then there is some research value.

    Schizophrenia is a physical illness just like kidney stones, cancer, flu.... The insurance companies are happy to call it a mental illness to avoid providing lifetime coverage of a transient or chronic physical condition.

    IMO: I am not a MHP/researcher, about one in three people have transient schizophrenic states (many politicians, C*Os, clerics) that allow them to excel at social skills and fail often with moral/ethic situations [they can always blame someone or godddd].

  • It sounds like too much remembering induces positive feedback in the brain's pathways which lead to unstable oscillations. Forgetting is then required in order to dampen the system and stabilize it.

    If the brain remembers too much, it's possibly not the new stimuli which overwhelm it, but the combination of new stimuli plus the remembered information being replayed, all made worse by feedback paths.

    Just a wild-assed hypothesis.

  • by gedankenhoren ( 2001086 ) on Friday May 06, 2011 @03:31PM (#36051544)

    I posted the following comment on neuroskeptic about this article:
    `"Noteworthy was the high frequency of agent-slotting exchanges between the hospital boss, Joe, and the Mafia boss, Vito, and parallel confusions between the “I” self-reference and underling Mafia members, suggesting generalization of boss/underling relationships."

    For the model to recognize these types of relationships, the authors would have had to explicitly tag these agents as possessing either these qualities the constituent elements of these qualities. In either case, it's easy to imagine post-hoc biases in the model's "memory encoder" that generate just-so results without actually reflecting the biological or theoretical underpinnings.
    How these relationships are assessed by the "memory encoder" and the "story parser" has much to do with the way features are associated with lexemes. From http://nn.cs.utexas.edu/?miikkulainen:phd [utexas.edu]:
    "Processing in DISCERN is based on hierarchically-organized backpropagation modules, communicating through a central lexicon of word representations. The lexicon is a double feature map, which transforms the orthographic word symbol into its semantic representation and vice versa."`
    (http://neuroskeptic.blogspot.com/2011/04/schizophrenic-computer.html)

    A judgement of this article depends largely on whether the parser assigns meaning with a result (at the very least, or, given that the goal is to model schizophrenia, in a way) that's compatible with the output (or processes) of human linguistic cognition.

  • by oergiR ( 992541 ) on Friday May 06, 2011 @04:54PM (#36052260)
    This paper shows why psychologists should not touch computers, let alone write papers about it. Hyperlearning may be a cause of schizophrenia in people, but this paper shows nothing of the sort. The learning rate in artificial neural nets determines a step size for the optimisation of a function. You need small steps because at each step the learning algorithm (gradient descent [wikipedia.org], or error backpropagation in this case) assumes that the function is linear. So neurons in the human brain assume piecewise linear behaviour in their neighbours? Of course not. The authors are just clueless about the mathematical model that they use.
  • by theillien ( 984847 ) on Friday May 06, 2011 @05:24PM (#36052504)
    Does this mean that people with photographic memories are more likely to develop schizophrenia?
  • by macs4all ( 973270 ) on Saturday May 07, 2011 @04:43AM (#36055314)
    Isn't this kind of what drove HAL crazy?

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