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Simple brain mechanisms explain arbitrary human visual decisions
Date:11/9/2008

Corbetta notes. Those areas may have delegated responsibility for the decision to premotor brain regions as the volunteers learned the task. But once the task was learned, the frontal lobes were silent.

"Even for arbitrary and somehow complex visual decisions, it seems to be purely a matter of the amount of sensory information pushing the brain toward one choice or another " he says.

Tosoni and Corbetta plan next to probe whether more complicated decisions are carried out by this relatively simple sensory-motor mechanism and how decisions are affected by the amount of reward the subject expects when performing simple and complex decisions.


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Contact: Michael C. Purdy
purdym@wustl.edu
314-286-0122
Washington University School of Medicine
Source:Eurekalert

Page: 1 2 3

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