Schizophrenia-proneness, season of birth and sleep: Elevated schizotypy scores are associated with spring births and extremes of sleep

Schizophrenics have been reported to exhibit elevated rates of winter and spring births. The present study examined whether there is a similar effect for subjects who are purportedly schizophrenia prone, or schizotypic. Analyses are reported for 452 undergraduate college students who completed the P...

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Bibliographic Details
Published in:Personality and individual differences 2006-11, Vol.41 (7), p.1185-1193
Main Authors: Reid, Howard M., Zborowski, Michael J.
Format: Article
Language:English
Subjects:
Adult and adolescent clinical studies
Biological and medical sciences
Birth season
Medical sciences
Personality disorders
Psychology. Psychoanalysis. Psychiatry
Psychopathology. Psychiatry
Psychoses
Schizophrenia
Schizophrenia-proneness
Schizotypy
Season of birth
Sleep
Undergraduate students
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Summary:Schizophrenics have been reported to exhibit elevated rates of winter and spring births. The present study examined whether there is a similar effect for subjects who are purportedly schizophrenia prone, or schizotypic. Analyses are reported for 452 undergraduate college students who completed the Perceptual Aberration-Magical Ideation (PER-MAG) scale, a commonly used measure of schizotypy. It was determined that elevated schizotypy scores were associated with spring births, as well as with reports of extreme hours of sleep. Finally, for the entire sample, an unexpected relationship was also found with fall births being associated with increased hours of sleep.
ISSN:0191-8869
1873-3549
DOI:10.1016/j.paid.2006.04.018