For questions on traumatic or congenital injury to the central nervous system.

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Why does injury cause brief unconsciousness?

I suppose I'm thinking specifically about head injuries, though this question applies to any injury that causes unconsciousness for, say, a few minutes. If you would revive so soon, why would you fall ...
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Do ADHD drugs harm the brain?

Particularly, the amphetamine "vyvanse". If one was to take a 30mg dose once a day for 50+ years, would it damage brain function at all? Would the brain simply get used to the drug and become 100% ...
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Is there a way to scientifically test Blood Brain Barrier integrity?

Is there a way to scientifically test Blood Brain Barrier integrity? I read that some practitioners use GABA load, but this seems not good enough as a test on many aspects.
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Has a Split Brain patient's right brain been asked if he has qualia?

For split brain patients, usually only the left brain is capable of language and thus deep communication is done only with that part. However, some split brain patients have a more or less language ...