RT Journal Article SR Electronic T1 Congenital Determinants of Violence JF Journal of the American Academy of Psychiatry and the Law Online JO J Am Acad Psychiatry Law FD American Academy of Psychiatry and the Law SP 101 OP 109 VO 16 IS 2 A1 Mednick, Sarnoff A. A1 Kandel, Elizabeth S. YR 1988 UL http://jaapl.org/content/16/2/101.abstract AB Specialization—the predisposition to violent behavior persisting over an extended period of time—is considered in relation to congenital factors, to determine whether such factors are contributory to this predisposition. Congenital factors include inherited characteristics and perinatal experiences. Evidence for inherited characteristics in criminal behavior is approached through family studies, the study of twins, and adoption studies. Of those three, adoption studies provide the most fertile ground for study. Predisposition toward criminal behavior is noted to be limited to property crime. The second congenital factor is the perinatal experience. Minor physical anomalies appear to be strongly related to hyperactivity and later criminal involvement, but only if the offender was reared in an unstable, nonintact family. Indices of perinatal problems relate to later violent crime, rather than to property crime, and may have as their basis some form of trauma occurring very early in life.