Sociopathic Personality in Identical Twins in a Set of Dizygotic Triplets
THOMAS L. TRUNNELL M.D.1
1 Psychiatric Clinic, Mount Zion Hospital and Medical Center, 1600 Divisadero Street, San Francisco, Calif. 94115
The manifestation of sociopathic personality in identical twins who are members of a dizygotic set of triplets is reported; the third triplet showed no evidence of personality disturbance. The author suggests that environmental and psychodynamic factors had an essential role in the development of the sociopathic personality disturbances.