Compare and contrast lesioning and electrical stimulation of the brain

Compare and contrast lesioning and electrical stimulation of the brain

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Brain tumors, strokes, head injuries, and other misfortunes often produce brain damage in people.  Psychologists have found many major insights about brain-behavior relations by observing the  behavioral changes in people who have suffered damage in specific brain areas. This research is  limited because there are not many subjects and it is often difficult to determine the exact location  and the severity of subjects' brain damage. Lesioning and electrical stimulation of the brain are two  modern brain-imaging methods that have improved neuroscientists' ability to pinpoint the location of  subjects' brain damage.             Scientists sometimes observe what happens when specific brain structures in animals are  purposely disabled. Lesioning is a method that injures or destroys a piece of the brain tissue.  Scientists use a device called stereotaxic instrument to implant electrodes at precise brain locations. 
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This note was uploaded on 01/28/2012 for the course PSYC 1101 taught by Professor Crystal during the Fall '08 term at University of Georgia Athens.

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