Aggressive Behaviour, Mental Sub-normality and the XYY Male

  title={Aggressive Behaviour, Mental Sub-normality and the XYY Male},
  author={Patricia A. Jacobs and M. Brunton and MARIE M. Melville and R. Brittain and W. F. McClemont},
  • Patricia A. Jacobs, M. Brunton, +2 authors W. F. McClemont
  • Published 1965
  • Psychology, Medicine
  • Nature
  • IT is well known that 1 per cent of males in institutions for the mentally sub-normal are chromatin-positive and that the majority of these have an XXY sex chromosome constitution1. In 1963 Forssman and Hambert2 reported on a survey of the nuclear sex of 760 male patients in three Swedish institutions for criminal and ‘hard-to-manage’ males of sub-normal intelligence. They found 2 per cent to be chromatin positive, but the chromosome constitution of these patients was not reported. Casey… CONTINUE READING
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