If I can show that the boy is a prisoner of long-buried morbid impulses, it will help steer them my way.

He's merely venting his confusion and his conflicting, often morbid impulses.

Trichotillomania, which comes from the Greek words for hair (trich) and morbid impulse (mania), affects an estimated 1 to 3 percent of people.

Otto Fenichel's grand summary of the first psychoanalytic half-century 'differentiated sharply between ego-syntonic morbid impulses and the ego-alien symptoms of compulsion neurotics'.

He almost rose and reassured O'Brien that he was still using up the station's oxygen, but a morbid impulse stopped him, made him lie still and listen to what O'Brien might say over his "corpse."