title: Personality traits of 47,XYY and 47,XXY males found among juvenile delinquents.
abstract: The mental features of nine 47,XYY males and six 47,XXY males found among Japanese juvenile delinquents were examined. The results of intelligence tests suggested a slight impairment among 47,XYY and 47,XXY males. The psychiatric interviews and the psychological tests revealed that 47,XYY males had a high activity level while 47,XXY males had a low one. Analyses of the offense type and psychophysiological features supported these findings. As the activity level is considered to be largely determined genetically, the extra Y is suspected to be responsible for the high activity level and the extra X in males to be responsible for the low activity level.
mesh_terms: D000293:Adolescent; D000328:Adult; D000987:Antisocial Personality Disorder; D002648:Child; D003417:Criminal Psychology; D005260:Female; D006801:Humans; D007361:Intelligence Tests; D007604:Juvenile Delinquency / Q000523:psychology*; D008297:Male; D011602:Psychophysiologic Disorders; D012729:Sex Chromosome Aberrations / Q000523:psychology*; D014960:X Chromosome; D014997:XYY Karyotype / Q000523:psychology*; D014998:Y Chromosome