Jul 27, 2009 | 6
Give a dog a treat, and she just might learn that new trick. Could the same concept also help a human recover from a brain injury, or become a violin virtuoso?
Rewards, especially in combination with drugs that enhance the neurotransmitter dopamine, may boost both cognitive and tactile learning, according to research published today in the journal PLoS Biology.
“We have known a lot about reward mechanisms,” says Burkhard Pleger of the Max Planck Institute for Human Cognitive and Brain Sciences and lead author on the study, “but it was not well known how rewards influence sensory processing.”
Researchers designed a game to elucidate this process. Prior to each set of four consecutive trials, Pleger and his colleagues showed participants how much reward could potentially be earned (incentives ranged from zero to 80 pennies). Subjects then attempted to distinguish which of two electric currents applied to their index fingers carried a higher frequency. If they were correct, the visual monetary reward was displayed.
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The Dow Chemical Company is the leading producer of polyalkylene glycols (PAGs) used in synthetic fluids and lubricants where petroleum,
Deadline: Jan 11 2014
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Conventional washing machines cause excessive damage and wrinkling to clothes primarily during the water removal step. With the introduc
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