University of Texas at Austin

Posts Tagged ‘stimulus-response’


Wednesday, April 13, 2011

Your brain, on drugs, learns too much

Hitoshi Morikawa want to find ways to interfere with the brain's capability to "overlearn" drug-associated behavior.One of the most famous science experiments is the one involving Pavlov and his dog in which Ivan Pavlov conditioned the dog to salivate at the sound of a bell.

Addictive drugs affect the brain in a similar but more powerful way, says Hitoshi Morikawa, a neurobiologist in the Waggoner Center for Alcohol and Addiction Research.

“We think addiction is a form of pathological overlearning in which the brain remembers too much the association between certain environmental stimuli and drug-seeking or drug-taking
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