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A lobotomy in which the white fibers that connect the thalamus to the prefrontal and frontal lobes of the brain are severed, formerly performed to treat behavior that was considered to be abnormal.
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|Noun||1.||prefrontal lobotomy - surgical interruption of nerve tracts to and from the frontal lobe of the brain; often results in marked cognitive and personality changes|
psychosurgery - brain surgery on human patients intended to relieve severe and otherwise intractable mental or behavioral problems
transorbital lobotomy - a method of performing prefrontal lobotomy in which the surgical knife is inserted above the eyeball and moved to cut brain fibers