Necessary conditions for consciousness

satish gore sgore at stanford.edu
Tue Feb 13 12:46:37 EST 2001


I would like to get in,
I feel/think/and now really want to say this

the body mind dichotomy of the east needs introduction here.:-)

As to the impulse reaching the brain and sensing it before it gives pain etc,
PAIn after all is an expression of the feeling.It may be pleasurable to some.

There is another interesting phenomenon REFERRED
 pain where ur brain is tricked, like say pain in lt arm due to cardiac
ischaemia.

We also need to answer the question on evolution of this conscious from the
amoeba to man

whooossh

now i feel better :-)

lets hear more of this

satish gore

Marcy wrote:

> I have GOT to get in on this discussion...
>
> It's me again, the writer trying to make a "pain machine" to read and
> transfer pain from one person to another. In my book (so far) a "level ten"
> pain is one that would knock you unconscious. If you've seen Tom Hanks in
> Cast Away you'll know the skate scene where he knocks himself out. How does
> this happen? How can the body read the location of the body's pain so
> accurately, and can we intervene before it gets to the brain? Is the
> unconsciousness due to pain just a reaction based on personal pain
> tolerance, or is there a threshold that any brain cannot withstand. What
> happens during this intense shut down?
>
> Phantom limbs... Where is the information coming from? If the lower leg is
> amputated at the knee, does the sensation of an itchy foot come from the
> nerve endings at the tip of the knee (point of amputation), or an
> interpretation the brain is making based on the body image. If the latter is
> true, how does this affect all sensations we feel? Can that be measured?
>
> If I place my hand on a hot plate and don't notice at first, does the pain
> exist? Can that be read as a sensory impulse *before* it reaches the
> consciousness of the person with their hand on a hot plate? I want to be
> able to take that impulse and read it accurately, transfer it accurately to
> another individual - all in the name of fiction of course. But I really want
> to get close to reality if I can.
>
> So there, I throw that out to you all. I'm loving this discussion....
>
> Marcy Italiano
> --
> -----------------------------------------------------
> Click here for Free Video!!
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>
> Glen M. Sizemore <gmsizemore at triad.rr.com> wrote in message
> news:8JEg6.50032$p8.11226162 at typhoon.southeast.rr.com...
> > Lew: You may want to consider the possibility that
> > it is not brains that are
> > conscious (or that produce conscious experience),
> > but rather bodies.
> > This is not to say that brains aren't an important part,
> > clearly they
> > are. What I'm suggesting is that it might not make
> > sense to focus on the
> > brain alone and exclude the rest of the body. It might
> > be argued, for
> > example, that your eyes are really just your brain
> > sticking out the
> > front of your head. If I'm not mistaken, there is also
> > some evidence
> > that rudimentary processing is occurring in the
> > retina. I can't think of
> > any principled reason to say that the computational
> > processes that
> > underlie consciousness occur only in the brain but
> > not at all in, say,
> > the spinal column. Where subjective experience is
> > concerned, it
> > certainly feels as if my body is conscious (toes,
> > fingertips, etc.).
> > There's also unilateral neglect, phantom limb
> > syndrome, synesthesia,
> > etc. which at least suggest that the body is best
> > understood as a whole
> > as opposed to a mode of transportation for the brain.
> > If there is
> > someone at your University who teaches Merleau-
> > Ponty you might want to
> > take a course or an independent study. He argues
> > (persuasively I think)
> > that notions like "intelligence" and "consciousness"
> > belong to the body
> > as whole, and not to the brain alone (although once
> > again, the brain is
> > clearly a very important piece of meat). With regard
> > to Cartesian
> > dualism, Jean-Paul Sartre pointed out that the best
> > way to unify the
> > mind and body is not to separate them in the first
> > place. You might want
> > to consider the possibility that it would be better not
> > to separate the
> > brain from the body if you plan to explain how they
> > function together at
> > some later time.
> >
> > Glen: You are on to something here. The reason that
> > "'intelligence' and 'consciousness' belong to the
> > body as whole" is that such terms are "used as
> > references to behavior." If we examine the
> > circumstances under which we allege that others are
> > "conscious" we will find that we are observing
> > behavior. Further, we will find that there are two
> > general kinds of observations that "cause us to use
> > the term consciousness;" I refer to these two kinds
> > of circumstances as 1) consciousness in the general
> > sense, and 2) consciousness in the restricted sense
> > (CRS) of self-aware . The former is used simply to
> > refer to the fact that an organism is "responding to
> > stimuli." The latter is used to refer to the fact that
> > humans can "respond to their own behavior or states
> > of their bodies." Only the latter deserves much
> > further comment, but this is not to say that the
> > behavior of organisms, in general, or the
> > neurobiology of behavior in general, is well
> > understood - it is not.
> >
> > In any event, it is not membership in the human
> > species that confers CRS, it is the special social
> > milieu in which humans are embedded. Humans
> > respond to their own behavior (or states of their
> > own bodies) because the "verbal community"
> > arranges contingencies of reinforcement that force
> > such responses. As has been pointed out (all to
> > seldom) is that non-human organisms can be "made
> > conscious" of their own behavior (or states of their
> > bodies). This is routinely done in the laboratory
> > using the procedure known as drug-discrimination
> > where responses on one lever are reinforced if the
> > organism has been injected with, say, cocaine, and
> > responses are reinforced on another when saline has
> > been injected.
> >
> > Thus, consciousness is a behavioral phenomenon
> > and behavior is part of the functioning of whole
> > organisms. Referring to the brain, or parts of the
> > brain, in terms relevant to whole organisms is
> > nonsense, and embodies everything that is wrong
> > with psychology and behavioral neurobiology.
> >
> > Glen
> > "L.A. Loren" <lloren at mitre.org> wrote in message
> > news:3A8173E7.BA1D80EB at mitre.org...
> > > Jeffrey Kazuo Yoshimi wrote:
> > > >
> > > [snip]
> > > > Assume that for a brain to produce conscious experience...
> > > [snip]
> > >
> > > You may want to consider the possibility that it is not brains that are
> > > conscious (or that produce conscious experience), but rather bodies.
> > > This is not to say that brains aren't an important part, clearly they
> > > are. What I'm suggesting is that it might not make sense to focus on the
> > > brain alone and exclude the rest of the body. It might be argued, for
> > > example, that your eyes are really just your brain sticking out the
> > > front of your head. If I'm not mistaken, there is also some evidence
> > > that rudimentary processing is occurring in the retina. I can't think of
> > > any principled reason to say that the computational processes that
> > > underlie consciousness occur only in the brain but not at all in, say,
> > > the spinal column. Where subjective experience is concerned, it
> > > certainly feels as if my body is conscious (toes, fingertips, etc.).
> > > There's also unilateral neglect, phantom limb syndrome, synesthesia,
> > > etc. which at least suggest that the body is best understood as a whole
> > > as opposed to a mode of transportation for the brain. If there is
> > > someone at your University who teaches Merleau-Ponty you might want to
> > > take a course or an independent study. He argues (persuasively I think)
> > > that notions like "intelligence" and "consciousness" belong to the body
> > > as whole, and not to the brain alone (although once again, the brain is
> > > clearly a very important piece of meat). With regard to Cartesian
> > > dualism, Jean-Paul Sartre pointed out that the best way to unify the
> > > mind and body is not to separate them in the first place. You might want
> > > to consider the possibility that it would be better not to separate the
> > > brain from the body if you plan to explain how they function together at
> > > some later time.
> > >
> > > Just a thought.
> > > Lew
> >
> >






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