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|Noun||1.||prefrontal leucotomy - 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