I was recently reading on this, but found that a complete definition was vague.
What does a brain state mean?
Thanks!
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2This is really more of neuroscience question than a philosophical one. It might be more suitable for the biology board. – David H Mar 25 '14 at 7:13
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1"What is a Brain State?" – user3164 Mar 25 '14 at 8:16
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A brain state is a snapshot of everything in the central-nervous-system.
A brain state is said to contain everything about a person right the instant it is snapshotted: memories, emotions, skills, opinions, knowledge, etc.
Most importantly it is a snapshot of who you are right that particular instant the snapshot is taken.
If you buy into material/reductionist theories of consciousness, then a brain state is by necessity information about the physical constituents of the brain. If not, then substitute for a snapshot of whatever you believe a person's memories and opinions are made of, in order to understand the thought-experiment.
