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![]() I'd love to get a committed behaviourist into a PET scanner. Do they have the same distribution of activity as the rest of use when invited to introspect, or do they look like patients who complain of depersonalization? If the latter, did they always look like that, or did they acquire that neural architecture through the rigid application of behaviourist principles? Grant Hutchison |
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Let me recommend the book The Mind's I, by Douglas Hofstadter and Daniel Dennet. It's a collection of essays, stories, and commentary that touches on a lot of these issues. And it's a pretty fun book to read.
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Conserve energy. Commute with the Hamiltonian. |
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Keep in mind that my view is that when someone says they don't feel themselves anymore, that they are referring to a change in their life, which includes both them and how they go about life. Physiology has a role here, of course, and you have provided excellent examples of how doctors study that physiology to bring about improvements to the patients lives. |
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Grant Hutchison |
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Grant Hutchison |
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Yes, the issue is very much if introspection counts as a form of "detection" by itself, or if it just some illusory or dressed-up version of a previously established "valid detection mode", perhaps requiring consideration of behaviors or social contexts, etc. You and I appear to agree on the former view, regardless of whether or not it is possible to connect that detection to something that shows up in a PET scan, or perhaps more to the point, regardless of what is the footprint of that detection that shows up on a PET scan. I think of scientific learning as a process of taking projections, projections of every kind we can think of. The ancient Greeks were suspicious of some projections, only they couldn't agree on which projections were spurious (abstract ideals or empirical data). Modern science apparently recognizes that one uses a combination of these, because it's not the projection you're using that counts, it is the methodology you apply to the process of making that projection. Science is thus a set of functions, that map from "reality" (which we have no direct access to) onto various "image spaces" that we choose via these projections (this is what we have direct access to). When we apply scientific methodology to find the functions that explain the results of those projections, we are doing science-- there is no need to argue "which projection is the valid one" because scientific methodology doesn't include that question. The question we ask, as apparently understood by Ramachandran, is, "what projections are effective?" The choice of the projection is often the crucial step in scientific discovery, and adjudicating which types of projections are philosophically unacceptable is counterproductive.
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So it was worth doing: as a way of getting good data about all sorts of human activities, it was (largely) A Good Thing. It's (at least potentially) more rigorous to observe someone behaving in response to their brain activity, rather than asking them to introspect their brain activity and describe it to you. However, I am only half-joking about getting a behaviourist into a PET scanner, because their emphasis on externalities occasionally seems to lead them to deny the existence of internalities that "the rest of us" find intuitive. I seem to remember Dan Dennett denying he experienced qualia, for instance, but I may be misrepresenting him, or he may just have been having a bit of tendentious fun. Grant Hutchison Last edited by grant hutchison; 25-March-2008 at 11:31 PM. Reason: Spelling |
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Behaviorists are a good illustration of the problem with a philosophy of science that demands that all scientific knowledge be expressed in terms of physical evidence or predictions about it.
If you insist on going down that road, then you must throw away all that introspection might suggest to you, because thoughts and feelings cannot be studied objectively. (We each have our own, and nobody else's.) For a strict behaviorist, the mind, with its thoughts and feelings, is beyond the scope of psychology; only behaviour can be studied. This kind of empiricism can be philosophically interesting in its radical devotion to the scientific method but, as Grant has been hinting, it's awfully sterile for scientists, who need to speculate beyond what they can see. But I agree that the behaviorist school was probably a breath of fresh air when it came about.
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"All your bias are belong to us." Ara Pacis "A witty saying proves nothing." Voltaire |
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You folks may prefer the introspective approach, and there is nothing wrong with what you glean from that, but consider how you handled the subject of "sense of self." The quotes I gathered below from this thread all set the concept of sense of self squarely in the middle of human action in trying conditions. It is only in such contexts where the self comes alive, so to speak, or temporarily steps down as needed. If I have anything of value to add to this thread, it is that it is OK to look past the backs of your eyeballs once in a while on these types of subjects. There are more insights to be gained in observing what takes place before you.
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The only way of finding the limits of the possible is by going beyond them into the impossible. Arthur C. Clarke The Brain Science Podcast |
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But I could have offered the story of a man who lost "himself" whenever he looked in the mirror or heard someone address him by name. The trigger there seems to have been the momentary mental event "That's me!" And there are others who describe simply sliding out of self at random moments during the day. Grant Hutchison |
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What does empathy have to do with this discussion?
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"All your bias are belong to us." Ara Pacis "A witty saying proves nothing." Voltaire |
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"What is empathy?" "I don't know. Let's set up a lab experiment." ![]() (Needs work, I know.) Grant Hutchison |
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Now that Grant has branded me with the label behaviorist, my views will be summarily dismissed. I don't know all that behaviorism entails. I'm just a computer programmer who was sparked by JJ Gibson's The Senses Considered as Perceptual Systems. Who would have thought that the environment (and the organism actively exploring that environment) has something to do with perception? Here is another group of fellows I like. Just read the abstract and see if it is the sort of behaviorism that sours your stomach: A Sensorimotor Account of Vision and Visual Consciousness (PDF) |
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I was not trying to dismiss behaviorism altogether. I think it gave an important contribution to psychology. I'm just a little skeptical that psychologists can afford to reduce everything about the mind to observable behaviours. (The word "psychology" does mean, in its origin, the science of the mind.)
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"All your bias are belong to us." Ara Pacis "A witty saying proves nothing." Voltaire |