lobotomy

Surgical incision into the frontal lobe of the brain to sever one or more nerve tracts, a technique formerly used to treat certain mental disorders but now rarely performed.

The surgical interruption of nerve tracts to and from the frontal lobe of the brain, by cutting into the brain.

A surgical operation on the frontal lobe of the brain intent on treating certain mental illnesses.

The severing of the prefrontal cortex from the thalamic region of the brain.

The severing of the sympathetic nerve trunk.

surgical interruption of nerve tracts to and from the frontal lobe of the brain; often results in marked cognitive and personality changes