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INRM
21st February 2008, 09:09 PM
The brain-stem has been suspected as playing a role in consciousness, especially since electrical pulses to the area can produce abscense sezires, and kids born without a cortex still maintained consciousness.

The question is, even if the cortex was absent, the thalamus would be present, and it has been implicated in a theory of consciousness and connects to the Brain-Stem -- how do they know it's brain-stem is the root of consciousness and not the thalamus?


INRM

PixyMisa
21st February 2008, 09:36 PM
They don't. Nor do they know that there is a "root of consciousness" in the sense that consciousness is localised to a particular area of the brain. Different aspects of what we call consciousness do seem to arise in different parts of the brain.

Piggy
21st February 2008, 09:43 PM
Cites, please.

Who is this "they"?

PixyMisa
21st February 2008, 09:55 PM
Them. The them.

LostAngeles
21st February 2008, 11:34 PM
Them. The them.

OH Them. Gotcha.

Dancing David
22nd February 2008, 04:19 AM
The brain-stem has been suspected as playing a role in consciousness, especially since electrical pulses to the area can produce abscense sezires, and kids born without a cortex still maintained consciousness.

The question is, even if the cortex was absent, the thalamus would be present, and it has been implicated in a theory of consciousness and connects to the Brain-Stem -- how do they know it's brain-stem is the root of consciousness and not the thalamus?


INRM

That is like pointing to the wheels of a car and saying, "Do they make it go fast? Are they the root of fastness?"

Consciousness can only be defined by behaviors:

Breathing and certain autonomics will be in the brain stem, but different other aspects will be in other areas.