A neuropsychological study of polydrug users.

  title={A neuropsychological study of polydrug users.},
  author={Igor Grant and L Mohns and Melissa S Miller and Ralph M. Reitan},
  journal={Archives of general psychiatry},
  volume={33 8},
The long-term neuropsychological effects of persistent nonmedical drug use are still unknown. In this study, 22 young men, all extensive "polydrug" users, were examined while free from drugs for an average of 60 days by means of the Halstead-Reitan Neuropsychological Test Battery. Their performance was compared to that of age-education-sex-matched neurologically intact medical patients and a similarly matched group of neurologically impaired patients. Blind independent ratings of test protocols… CONTINUE READING

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