Brain Decides Faster Than You Think

(WebMD)  Talk about quick thinking: The brain may make some decisions up to 10 seconds before those decisions bubble up to conscious thought, a new study shows.

In the study, 14 men and women aged 21-30 sat at computers and watched random letters pop onto the screen, one at a time. When they felt like it, participants clicked on one of two computer keys and noted the letter that was on the computer screen when they made that decision.

Meanwhile, they got brain scans using functional magnetic resonance imaging(fMRI) to show brain activity linked to their decisions.

Those brain scans showed activity in two regions in the brain's frontal and parietal cortex that predicted, by up to 10 seconds, the conscious decision to press either computer key.

"This suggests that when the subjects' decision reached awareness it had been influenced by unconscious brain activity for up to 10 seconds," write the researchers.

They included John-Dylan Haynes, PhD, of Germany's Max Planck Institute for Human Cognitive and Brain Sciences and the Bernstein Center for Computational Neuroscience.

Their findings appear in the April 13 advance online edition of Nature Neuroscience.
By Miranda Hitti
Reviewed by Louise Chang
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[erasmus6]

The brain is my favorite subject!

[gurusavant]

wow. that is truly amazing.

[stn_sage]

I don''t find this to be surprising.
Sometimes I feel like my brain has made a decision quicker than I can respond physically with my extremities.
There are other interesting brain research projects being conducted as well.