Thread View: sci.med.vision
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Started by Antonio Francisco Rodr�guez Hern...
Mon, 28 Apr 1997 00:00
SEEING SOUNDS
Author: Antonio Francisco Rodr�guez Hern...
Date: Mon, 28 Apr 1997 00:00
Date: Mon, 28 Apr 1997 00:00
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A case about a person who perceives colours when listening pure sounds
was presented in "news" some time ago.I would thank any information about
it or about any other similar case where stimulation with sounds produce
any kind of visual response.
Thanks in advance.
Antonio Rodr�guez Hern�ndez.
Re: SEEING SOUNDS
Author: David Lubman
Date: Mon, 28 Apr 1997 00:00
Date: Mon, 28 Apr 1997 00:00
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I remember learning somewhere that the Russian composer Scriabin had that problem, and it affected his compositions. The late pianist Vladimir Horowitz championed Scriabin's work. Antonio Francisco Rodr�guez Hern�ndez wrote: > > A case about a person who perceives colours when listening pure sounds > was presented in "news" some time ago.I would thank any information about > it or about any other similar case where stimulation with sounds produce > any kind of visual response. > Thanks in advance. > Antonio Rodr�guez Hern�ndez.
Re: SEEING SOUNDS
Author: Joseph S. Wisniewski
Date: Mon, 28 Apr 1997 00:00
Date: Mon, 28 Apr 1997 00:00
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Antonio Francisco Rodr�guez Hern�ndez wrote: > > A case about a person who perceives colours when listening pure sounds > was presented in "news" some time ago.I would thank any information > about it or about any other similar case where stimulation with sounds > produce any kind of visual response. > Thanks in advance. > Antonio Rodr�guez Hern�ndez. This is called synesthasia. It's not that uncommon, and usually relates to abnormalities of the limbic system, most particularly the hipocampus. Sound to sight and sight to sound are the most common forms. Usually, the synesthasia sufferer only gets one of those two, but lucky me, I get both. If you want web resources, look at Dr. Cytowic's synesthasia home page. http://psyche.cs.monash.edu.au/v2/psyche-2-10-cytowic.html -- Joseph S. Wisniewski | Views expressed are my own, and don't reflect Ford Motor Company | those of the Ford Motor Co. or affiliates. Project Sapphire | LeMans, Daytona, Bonneville, and Sebring are jwisniew@ford.com | just races, won by people driving Ford cars!
Re: SEEING SOUNDS
Author: Rob
Date: Tue, 29 Apr 1997 00:00
Date: Tue, 29 Apr 1997 00:00
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On Mon, 28 Apr 1997 12:12:10 +0100, Antonio Francisco Rodr�guez Hern�ndez <arguez@iac.es> wrote: >A case about a person who perceives colours when listening pure sounds >was presented in "news" some time ago.I would thank any information about >it or about any other similar case where stimulation with sounds produce >any kind of visual response. > Thanks in advance. >Antonio Rodr�guez Hern�ndez. It's called "synesthsthesia" Rob
Re: SEEING SOUNDS
Author: meijer
Date: Tue, 29 Apr 1997 00:00
Date: Tue, 29 Apr 1997 00:00
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Hi Antonio, If you find some information about this, I would be very interested, because cases of spontaneous multimodal perception might teach us something more about possibly dormant neural pathways that could play a role in sensory substitution. Please post or mail any resources you find. Best wishes, Peter Meijer Soundscapes from The vOICe - Seeing with your Ears? http://ourworld.compuserve.com/homepages/Peter_Meijer/ Antonio Francisco Rodr�guez Hern�ndez wrote: > > A case about a person who perceives colours when listening pure sounds > was presented in "news" some time ago.I would thank any information about > it or about any other similar case where stimulation with sounds produce > any kind of visual response. > Thanks in advance. > Antonio Rodr�guez Hern�ndez.
Re: SEEING SOUNDS
Author: Kari Pesonen
Date: Tue, 29 Apr 1997 00:00
Date: Tue, 29 Apr 1997 00:00
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Antonio Francisco Rodr�guez Hern�ndez <arguez@iac.es> wrote in article <3364860A.6F55@iac.es>... > A case about a person who perceives colours when listening pure sounds > was presented in "news" some time ago.I would thank any information about > it or about any other similar case where stimulation with sounds produce > any kind of visual response. > Thanks in advance. > Antonio Rodr�guez Hern�ndez. > It is told that Sibelius saw of felt the opposite: colors and paintings as tones or music. regards Kari Pesonen
Re: SEEING SOUNDS
Author: Greg Szekeres
Date: Tue, 29 Apr 1997 00:00
Date: Tue, 29 Apr 1997 00:00
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In article <3364860A.6F55@iac.es> Antonio Francisco Rodr�guez Hern�ndez <arguez@iac.es> writes: >From: Antonio Francisco Rodr�guez Hern�ndez <arguez@iac.es> >Subject: SEEING SOUNDS >Date: Mon, 28 Apr 1997 12:12:10 +0100 >A case about a person who perceives colours when listening pure sounds >was presented in "news" some time ago.I would thank any information about >it or about any other similar case where stimulation with sounds produce >any kind of visual response. > Thanks in advance. >Antonio Rodr�guez Hern�ndez. The reason I am getting in here is because of the color organs I used to build. probably has nothing to do with your question. I used to assign bassy frequencies to deep purple colors. On up the scale would be more deep colors, red, darker blues and greens. The colors lighten up and go to yellows and almost whites at the higher frequencies. Perhaps DRUGS can cause this? Maybe a crisscrossing of nerves. Why is it when I'm chewing some hard candy and look at my monitor, I see some flashes and blanks on the screen? Perhaps the sound can modulate or interfere with the optic nerves or retina? Perhaps the people who see colors are just using some brain functions a little strangely. greg
Re: SEEING SOUNDS
Author: Raymond A. Chamberlin
Date: Wed, 30 Apr 1997 00:00
Date: Wed, 30 Apr 1997 00:00
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rflor@gte.net (Rob) wrote: >On Mon, 28 Apr 1997 12:12:10 +0100, Antonio Francisco Rodr�guez >Hern�ndez <arguez@iac.es> wrote: > >>A case about a person who perceives colours when listening pure sounds >>was presented in "news" some time ago.I would thank any information about >>it or about any other similar case where stimulation with sounds produce >>any kind of visual response. >> Thanks in advance. >>Antonio Rodr�guez Hern�ndez. > > >It's called "synesthsthesia" Well, something like that. And if you can think of a name for it, it just *has* to exist. ;-) Ray
Re: SEEING SOUNDS
Author: Raymond A. Chamberlin
Date: Wed, 30 Apr 1997 00:00
Date: Wed, 30 Apr 1997 00:00
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szekeres+@pitt.edu (Greg Szekeres) wrote: > .................. > >Why is it when I'm chewing some hard candy and look at my monitor, >I see some flashes and blanks on the screen? Disruption (direct jaw-muscular effect, induced blinking, head motion) of your eye saccades not synchronized with the raster scanning? But then, maybe it's what's in that candy? ;-) > ............. > Ray
Re: SEEING SOUNDS
Author: Joseph S. Wisniewski
Date: Thu, 01 May 1997 00:00
Date: Thu, 01 May 1997 00:00
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Raymond A. Chamberlin wrote: > > rflor@gte.net (Rob) wrote: > > >On Mon, 28 Apr 1997 12:12:10 +0100, Antonio Francisco Rodr�guez > >Hern�ndez <arguez@iac.es> wrote: > > > >>A case about a person who perceives colours when listening pure > >>sounds was presented in "news" some time ago. > >> > >>Antonio Rodr�guez Hern�ndez. > > > >It's called "synesthsthesia" > > Well, something like that. And if you can think of a name for it, it > just *has* to exist. ;-) > > Ray Great attitide, Ray: open thinking that's a credit to the scientific community. Synesthesia is a very well documented limbic system abnormality, with several forms documented in DSM-IV. Estimates on incidence rates usually put it at one in 10,000 people, so there are there are at least 1/2 a million cases worldwide. That's just the incidence of cases severe enough to seriously impact people's lives. I'm not going to dump a hole bibliography on you, but you could have a look at Cytowic's synesthesia web site. http://psyche.cs.monash.edu.au/v2/psyche-2-10-cytowic.html -- Joseph S. Wisniewski | Views expressed are my own, and don't reflect Ford Motor Company | those of the Ford Motor Co. or affiliates. Project Sapphire | LeMans, Daytona, Bonneville, and Sebring are jwisniew@ford.com | just races, won by people driving Ford cars!
Re: SEEING SOUNDS
Author: Raymond A. Chamberlin
Date: Fri, 02 May 1997 00:00
Date: Fri, 02 May 1997 00:00
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"Joseph S. Wisniewski" <jwisniew@ford.com> wrote: > ................... > >Great attitide, Ray: open thinking that's a credit to the scientific >community. Well, you know all these so-called "sci" newsgroups aren't all so heavy in intense science, and someone cross-posted this thread across some that are and some that aren't so much, like sci.med.vision, where I have been posting (and can often be more scientific than the optometrists here, but. . .). However, my "attitude" was supposed to be *pro*-science, in the sense that, having heard the term 'synesthesia' used only in a psychologist's or performance artist's subjective sense, I had held it suspect, as anything correlating to the objective world, to which I would limit the narrower sense of the concept 'science' (requiring scientific "objectivity"). Afterall, psychologists (not objective science, by definition) and related types have been dumping distortive subjective concepts, with no objective correlates on us heavily from before the turn of the last century through the 1970s. >Synesthesia is a very well documented limbic system >abnormality, with several forms documented in DSM-IV. Estimates on >incidence rates usually put it at one in 10,000 people, so there are >there are at least 1/2 a million cases worldwide. That's just the >incidence of cases severe enough to seriously impact people's lives. I'm >not going to dump a hole bibliography on you, but you could have a look >at Cytowic's synesthesia web site. > > http://psyche.cs.monash.edu.au/v2/psyche-2-10-cytowic.html From what you say and a quick glance at Cytowic's Web site, it looks like I was wrong to intimate flakiness, or mere metaphoric status, to the concept of synesthesia, as centered in some rather unique "wiring" of the limbic system. (However, I immediately see some statements one could argue over for some time.) It's been said that you can't believe everything you read on the Net, but that if something wrong is printed there, it sure doesn't take long for the correct substitute information to get printed alongside the mistaken stuff. (. . .only my third mistake. . .mumble mumble . . .) I may be back after thoroughly reading Cytowic. Ray
Re: SEEING SOUNDS
Author: siffert Curt Siffert
Date: Tue, 06 May 1997 00:00
Date: Tue, 06 May 1997 00:00
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As did composer Oliver Messiaen. While reading his program notes, you can start to think you're reading about a painter describing his canvases. "dlubman@ix.netcom.com"@popd.ix.netcom.com sayeth: >I remember learning somewhere that the Russian composer Scriabin had >that problem, and it affected his compositions. The late pianist >Vladimir Horowitz championed Scriabin's work. > >Antonio Francisco Rodr�guez Hern�ndez wrote: >> >> A case about a person who perceives colours when listening pure sounds >> was presented in "news" some time ago.I would thank any information about >> it or about any other similar case where stimulation with sounds produce >> any kind of visual response. >> Thanks in advance. >> Antonio Rodr�guez Hern�ndez. -- Curt Siffert siffert at tangrams dot com Magic is to science as metaphors are to literals.
Re: SEEING SOUNDS
Author: Raymond A. Chamberlin
Date: Tue, 06 May 1997 00:00
Date: Tue, 06 May 1997 00:00
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raych@sirius.com (Raymond A. Chamberlin) wrote: > ................... > >From what you say and a quick glance at Cytowic's Web site, it looks >like I was wrong to intimate flakiness, or mere metaphoric status, to >the concept of synesthesia, as centered in some rather unique "wiring" >of the limbic system. (However, I immediately see some statements one >could argue over for some time.) > >It's been said that you can't believe everything you read on the Net, >but that if something wrong is printed there, it sure doesn't take >long for the correct substitute information to get printed alongside >the mistaken stuff. (. . .only my third mistake. . .mumble mumble >. . .) I may be back after thoroughly reading Cytowic. I'm back. . .and I recant most of what I said here. Cytowic's document drifts about as far away from science as you can get. It is *science*, you recall, to which you referenced your complaint as to the attitude of my post. He claims to have authored an earlier book which contained significant neurobiology, without reading it, based on his paper that I read, it becomes highly suspect. Anything written on the senses, of course, can't limit itself to an objective science alone, but has to relate to a subjective world in some way, in a psychophysic (a half-science). Well, psychophysics can be useful where subjective reports can be shown to have good statistics over many subjects, in closing the loop back through the mind/brain to objectivity, enduring varied amounts and sorts of neuroprocessing. This process relies on statistics around a human normal centralized processor / brain. By definition, however (despite some of Cytowic's efforts to claim synethesia is a "normal" function), the subject here is a centralized-processor abnormality, not an abnormality of a sensory organ peripheral to the centralized processor / brain, and therefore, nobody knows what to do with the subjective reports of it coming out of that processor. You can do anything you want with them, as psychologists regularly do with subjective reports supposed to provide information on the brain. Their explanations are not science and seldom agree with each other. Well, Cytowic's paper on the Net is philosophy, not science, and goes way beyond just couching some science in related philosophy. It even proceeds to argue his emotional sentiments about how thinking on the subject, however you categorize it, should justify his own emotional desires. It is not clear whether he himself is synesthetic, as he defines it in the narrow sense, as an abnormality. I believe you, who are riding on his emotional choo-choo train, have commented that *you* are so. His last sentence even establishes the overall unspecificity of his Web document: "If this is correct, then we are all unknowingly synesthetic." The more I read of his work, the more it smells. Hey, wait a minute. . . C tries to correlate synesthesia to a whole slew of unusual non-learned behaviors and other innate uncommon attributes of humans. He sure doesn't provide much to convince anyone such associations are valid in any scientific sense. I was about to accept his word that he was speaking science, after he came up with the female abductee of aliens, who, after a little pleasuring by them, was never thereafter able to be sexually satisfied by human males ( ;-b ), but. . .when he pushed Kandinsky's recommendation to "stop thinking", I stopped thinking he was scientifically oriented at all. His finding that seizures can produce many of the symptoms he claims for synethesia he somehow takes imply that seizures produce synethesia. How's that for scientific thinking? His section on "Neural Basis" wanders around, but never really gets into, neurobiology, while tripping out on a claim that altered consciousness from LSD is similar to synesthesia, because they both involve the hippocampus. So it's science to dump everything that involves the hippocampus into the same bag? I think it's halucinating without any acid. I can't figure out what the heck he sticks under his term 'form constant' and during the many times I've watched fireworks, it has never occurred to me to describe any feeling I've gotten (you mean like a mild 'wow'?) as "salience" or experience "recognition" (of what?). The only salience and recognition here are ones of complete lack of science. He marvels over some guy named Ommaya who describes consciousness as a type of emotion and emotion as acting as a "cognitive homeostat". Well, my cognition stopped dead on that note. As an example of how weirdly far from scientific thought patterns C's reasoning is, dig this: He first says humans are the only mammals that have both well-developed limbic and neocortical brain suborgans. He then claims that this situation alone establishes in humans nonhierarchical interaction between the cortical and "sub"cortical parts of the brain, while other mammals have pretty much a straight hierarchy of the cortex down to the subcortical regions. I'm sure such structure prevails in humans, but just making two things big or complex doesn't necessarily make them interact more. (English and Russian are arguably the two largest and most complex languages, but they don't interact much.) C's writing is basically political: "Our insistence on a third-person, "objective" understanding of the world has just about swept aside all other forms of knowledge." Well, that type of "understanding" is inherent in the notion of science and scientific objectivity. What's C wants is inherently *un*scientific. C also states that the predominance of women synesthetics in the UK is much greater than in the US, and then follows this with, "It is doubtful that transatlantic genetic differences contribute to this disparity." Why should he find this potential cause doubtful? I don't about the truth of the data, but surely the racial / varietal complement of the US is considerably different from that of the UK. C ties in a correlation of synesthesia to abnormalities in visual fields, particularly as sampled manually, as opposed to the use the results of automated perimetry. That discussion sounds pretty unscientific also. He next claims 10% of synetsthetes are gay. So? Isn't that approximately the percentage of the general population that is gay? C makes the strange statement, "If such an unfounded worry [that of dying during a seizure] preoccupies [as he claims it does] their [epileptics] thoughts, it is not hard to suppose that synesthetic experience might make them think that they are losing their mind." Why should that worry be considered "unfounded" in the first place? Someone with the potential of losing control of his behavior during any activity certainly is more apt to lose same in circumstances with a fairly high probability of death resulting, where one's behavior is inadequate to survival under the given circumstances -- than is someone who does not have such potential. C claims this "unfounded" worry would correlate to worrying about losing one's mind upon experiencing syesthesia. C now considers that synesthesia may be more common in children than in adults, in contrast to what he previously thought in this vein -- merely as a result of having heard adults say that they "haven't thought of synesthesis "since [they were] a child or "since [their] bar mitzvah[s]." So, many Western Jews are higher strung than the average American and apparently have more complex emotional goings-on in their minds as children than do other children. So why shouldn't this evidence support the conclusion that such patterns in children's minds are not built into the framework as a synesthetic structure, but rather are developmental stages toward a certain type of adult mentality? C states: "Linguists no doubt could pose more sohisticated and probing experiments." Linguistics is not science and linguists are all that sophisticated. Then C prefers the hermeneutic over the scientific and says, "If you think that the mind is some disembodied, abstract program that can be instantiated on any hardware capable of running it, then you can ignore the biological complexities of neural tissue," and then claims such a tactic is "convenient and lazy". Well, instantiating *anything* on "hardware capable of running it", by definition, requires only a means of tranferring it to such hardware in order to run it. Well, a mind, as experienced by another mind usually has quite a high degree of complexity resultant from all possible permutations of behavior from a highly complex organ already of high complexity, but some useful theory can result, by ignoring much specifics of neural tissue. C repeatedly complains about associating computationality with the brain and relates it to behaviorism. He then uses a term 'microgenesis'. What is that word supposed to mean? It's not in my dictionary. Lastly, C gets very poetic and metaphoric in pushing holism in the description of perception -- off into the sculpting of statues, even -- where "synesthesia is the conscious awareness of a normally holistic process prematurely displayed." Is he just declaring it unanalyzable? Some scientist! Yep! Now I get it in full first person, experiencially: Words that conger nonscience trigger my olfactory cells negatively, so that Cytowic's literary work transforms me into a damn synesthete. Wow, his "science" stinks! :-[ Ray
Re: SEEING SOUNDS
Author: meijer
Date: Wed, 07 May 1997 00:00
Date: Wed, 07 May 1997 00:00
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I enjoyed reading Raymond Chamberlin's polemic discussion about the state of affairs in synesthetic research, and sympathise with a number of the more basic issues he implicitly puts forward, although perhaps I would have used different wordings. I'd like to see the synesthesia subject drawn out of the current largely phenomenological approach describing only exotic spontaneous cases of synesthesia. Though these are very interesting, at least as interesting is the question to what extent synesthesia can be induced, learnt, whatever, by the ``average'' human being. Which neural pathways could contribute, what level of brain plasticity is needed, what does this mean for adults versus young children, etc. I would like to see more experimental work, e.g., how does distribution of (human or animal) brain activity gradually change after mapping inputs for one sense to another sense while blocking the inputs to that one sense. Are the cortical or other brain areas normally associated with this one sense gradually going to respond to the remapped sensory inputs of the other sense? And if so, how, and to what degree compared to their normal functioning for the original normal sensory inputs? A bit hard to follow perhaps in these general terms? Remember how well the brain appeared able to adapt in the classic experiments with image reversal goggles. Remember also how the brain activity of trained musicians has been shown to differ from that of musical laymen while listening to music. Is the processing of different senses in the brain really so strongly split (through missing neural pathways) as to make cross-modal remappings inevitably fail where unimodal remappings succeed? What evidence is there, both pro and con? Say one maps, one way or the other, visual information into an acoustical form (while preserving much visual information), and blindfolds the subject: what is going to happen to brain activity during training? If something does happen, can that be explained from (knowledge about) existing neural wiring plus some degree of plasticity? Maybe others know still better questions to ask, but at least let's try to get into scientifically reproducible results that might pertain to a better understanding of the workings of ``normal'' brains (I hope words like ``normal'' don't sound or smell offensive to synesthetes reading this, as it isn't meant to). Peter Meijer Artificial Synesthesia http://ourworld.compuserve.com/homepages/Peter_Meijer/asynesth.htm
Re: SEEING SOUNDS
Author: Paul D Dybala
Date: Sat, 10 May 1997 00:00
Date: Sat, 10 May 1997 00:00
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As far as the cortical remapping there is a large amount of animal research looking at the remapping of visual, auditory, and somatosensory areas after peripheral receptor damage. I wrote a paper that goes over some of the auditory remapping studies at http://www.utdallas.edu/~dybala/ but just look in MEDLINE under cortex & plasticity and you will get a bunch of stuff meijer (meijer@natlab.research.philips.com) wrote: > I enjoyed reading Raymond Chamberlin's polemic discussion > about the state of affairs in synesthetic research, and > sympathise with a number of the more basic issues he > implicitly puts forward, although perhaps I would have > used different wordings. > I'd like to see the synesthesia subject drawn out of the > current largely phenomenological approach describing only > exotic spontaneous cases of synesthesia. Though these are > very interesting, at least as interesting is the question > to what extent synesthesia can be induced, learnt, whatever, > by the ``average'' human being. Which neural pathways could > contribute, what level of brain plasticity is needed, what > does this mean for adults versus young children, etc. > I would like to see more experimental work, e.g., how does > distribution of (human or animal) brain activity gradually > change after mapping inputs for one sense to another sense > while blocking the inputs to that one sense. Are the cortical > or other brain areas normally associated with this one sense > gradually going to respond to the remapped sensory inputs of > the other sense? And if so, how, and to what degree compared > to their normal functioning for the original normal sensory > inputs? > A bit hard to follow perhaps in these general terms? > Remember how well the brain appeared able to adapt in > the classic experiments with image reversal goggles. > Remember also how the brain activity of trained musicians > has been shown to differ from that of musical laymen > while listening to music. Is the processing of different > senses in the brain really so strongly split (through > missing neural pathways) as to make cross-modal remappings > inevitably fail where unimodal remappings succeed? What > evidence is there, both pro and con? > Say one maps, one way or the other, visual information > into an acoustical form (while preserving much visual > information), and blindfolds the subject: what is going > to happen to brain activity during training? If something > does happen, can that be explained from (knowledge about) > existing neural wiring plus some degree of plasticity? > Maybe others know still better questions to ask, but at > least let's try to get into scientifically reproducible > results that might pertain to a better understanding of > the workings of ``normal'' brains (I hope words like > ``normal'' don't sound or smell offensive to synesthetes > reading this, as it isn't meant to). > Peter Meijer > Artificial Synesthesia > http://ourworld.compuserve.com/homepages/Peter_Meijer/asynesth.htm -- Thank you for your support, Paul Dybala dybala@utdallas.edu http://www.utdallas.edu/~dybala
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