People with a specific genetic mutation seem to be "smarter," in the sense of being able to adapt to changing situations and continue to make correct decisions quickly, a new German study suggests.
And people graced with this genotype showed more activity in the prefrontal cortex of the brain, activity that is probably linked to metabolism of the brain chemical dopamine.
"Dopamine is related to reward so perhaps some individuals can make quicker decisions because they have more dopamine in the prefrontal cortex," said Paul Sanberg, a professor of neurosurgery and director of the University of South Florida Center for Aging and Brain Repair in Tampa.
The findings, reported this week in the Proceedings of the National Academy of Sciences, raise the hope of one day helping people with disorders such as Parkinson's disease that involve dopamine irregularities.
Looking for the paper. It's in PNAS.
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