 The term leucotomy is still used to refer to the standard prefrontal leucotomies of the 1940s, 1950s, 1960s and 1970s, and is occasionally used as a generic term for psychosurgical operations.Some doctors prefer the term neurosurgery for mental disorder (NMD) to psychosurgery.The American term lobotomy has never been used by medical writers in the UK to describe a psychosurgical operation on the frontal lobe.