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Is it true that we only use 10% of our brain?
If thats true what do you think we could do if we used more?

2007-10-09 19:10:09 · 4 answers · asked by Anonymous in Science & Mathematics Medicine

4 answers

Ordinarily we can't use much more than 10% but the other 90% is used, to an extent, if we are unfortunate enough to have a brain injury. The 90% is for spares, a crude way to put it but that's it........

2007-10-09 19:19:32 · answer #1 · answered by jefdjif 2 · 0 1

This figures of 5, 10, or 15% seems to fascinate the lay public. The origins of the myth that we use such a small portion of our brain may have come from crude lesioning experiments on rats by Karl Lashley and Shepherd Franz (more than 80 y ago) who observed they needed to destroy large portions of rat brain to alter observable behavior. The myth may have been further perpetuated with the observation that people with untreated hydrocephalus (some with only a ribbon of cortex on pathological examination, or by imaging) were (or are) able to function "normally" with an intracranial volume comprised mainly of cerebrospinal fluid. I don’t know.

Whatever the origin, to believe such information as proof that the human brain then might hold vast untapped resources requires quite an extraordinary leap of faith. Bear in mind that the brain is more than the cortex, and much of the brain, including the cortex, is constantly active in the process of actually *inhibiting* other parts of the brain. This doesn’t bode well for untapping those resources, does it.

Lay persons tend not to realize that the brain does many things other than think. Our brains continually process sensory data and adjust physiological parameters to maintain homeostasis. Much of this sampling and reflexive adjustment is medullary or spinal (by a small volume of the CNS). I believe all of our intact brain tissue is used for some purpose or another.

2007-10-10 03:09:04 · answer #2 · answered by Aiden 4 · 0 0

yes it is.. even Isaac Newton used only 10% of his brain. not that we didnt used our brain, but most of the brain work under concious, like seeing, touching, etc...

2007-10-10 04:59:35 · answer #3 · answered by Anonymous · 0 1

There is no scientific evidence to suggest that we use only 10% of our brains.Click this link it will explain everything.
http://faculty.washington.edu/chudler/tenper.html

2007-10-10 02:23:30 · answer #4 · answered by Anonymous · 0 0

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