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I mean like, for example when the brain is processing some activity... and we are able to look at it, will we know that the brain is being active doing something just from its outside appearance?

2006-08-07 02:45:26 · 2 answers · asked by hayabusa 2 in Science & Mathematics Biology

2 answers

Why yes it is in the neurons . A faster than lightening communication fom the pain you feel in your little toe all the way to your brain knowing you have it through this communication system that is on the molecular level of movement you can't see it with the naked eye but their are receptors and an electrical impulse thing going on look it up the encyclopedia or a book on neuro scienc or neurophysiology woud state it better

2006-08-07 02:53:31 · answer #1 · answered by Anonymous · 0 0

The brain's activity is chemical. It is nerve cells, not muscle cells. It doesn't go anywhere anymore than your computer goes somewhere when it's "thinking."

The brain is like an electrical grid. The physical aspect of the brain is just a lot of "wires" through which signals can travel. It's the movement of signals that is the actual thinking.

However, we can do PET scan, or Positron Emission Tomography, in which a radioactive substance called a tracer is injected into the blood. The tracer enters the brain and is taken up by the cells. The higher the activity, the more of the tracer is taken up by the brain's neurons, so you can see areas of high activity. You can give people things to handle or have them look at pictures and see how they are processing information about those things.

2006-08-07 03:20:30 · answer #2 · answered by TychaBrahe 7 · 0 0

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