TY - JOUR T1 - SEx chromosome anomalies, hormones, and
aggressivity AU - Schiavi RC AU - Theilgaard A AU - Owen DR AU -
White D Y1 - 1984/01/01 N1 -
10.1001/archpsyc.1984.01790120097012 JO - Archives of General
Psychiatry SP - 93 EP - 99 VL - 41 IS - 1 N2 - • This double-
blind, controlled study of XYY and XXY men found in a birth
cohort of 4,591 tall men born in Copenhagen assessed evidence of
delinquent and aggressive behavior and explored the role of
hormonal determinants in the behavioral and psychological
differences noted among groups. Information from social records,
a structured psychological interview, and projective tests did
not support the notion that men with sex chromosome anomalies
are particularly violent or aggressive. Hormonally, XYY men had
significantly higher concentrations of testosterone, luteinizing
hormone (LH), and folliclestimulating hormone (FSH) than matched
control groups. In contrast, XXY men had higher levels of LH,
FSH, and prolactin, but low concentrations of testosterone. The