Season of birth effect on personality in a general population

Neuroscience Letters
Mamoru TochigiTsukasa Sasaki

Abstract

Seasonality of births in schizophrenia and other mental disorders has been consistently observed. This may be through effects of unknown environmental factors that seasonally fluctuate on the brain development. The effects may affect cognitive function of the brain and behavioral characteristics that might be correlated with the development of personality not only in patients with mental disorders but also in healthy subjects. We, therefore, investigated the effects of season of birth on personality traits in healthy Japanese adults (n = 397). Personality traits were evaluated using the NEO Personality Inventory-Revised (NEO PI-R). A trend for lower Agreeableness in subjects born during winter (December to February) than other subjects was observed (P = 0.036, after correction for the multiple testing, multiple regression analysis adjusting for age and sex). Other major factors of the NEO PI-R, including Neuroticism, Extraversion, Openness and Conscientiousness, were not affected by season of birth. Further studies may be recommended to confirm the results, considering the relatively limited sample size. Evaluation of cognitive functions and behaviors using other measures including event-related potentials and functional MRI ma...Continue Reading

References

Feb 1, 1995·Acta Psychiatrica Scandinavica·J ModestinO Würmle
Nov 24, 1999·Neuropsychobiology·P CastrogiovanniF Pieraccini
Jul 11, 2000·Alcoholism, Clinical and Experimental Research·A E Goldberg, D B Newlin
Mar 30, 2001·The Journal of Nervous and Mental Disease·O J BienvenuW W Eaton
Jun 18, 2002·Neuroscience Research·Kiyoto KasaiMasato Fukuda
Dec 23, 2003·Neuroscience Research·Mamoru TochigiTsukasa Sasaki

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Citations

Feb 14, 2009·Medical Hypotheses·Yuan ZhengDong-Qing Ye
Dec 17, 2008·European Psychiatry : the Journal of the Association of European Psychiatrists·Mitsuhiro KamataKoichi Otani
Apr 23, 2009·Neuroscience Letters·Lorenzo TonettiVincenzo Natale
Feb 12, 2008·Schizophrenia Research·Brian KirkpatrickDavid LaPorte
Feb 22, 2011·Journal of Affective Disorders·Zoltan RihmerXenia Gonda
Aug 10, 2016·Frontiers in Public Health·Ryosuke AsanoUNKNOWN for Hamamatsu Birth Cohort (HBC) Study Team
Oct 21, 2017·Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova·M V AlfimovaM V Gabaeva
Apr 7, 2020·World Journal of Pediatrics : WJP·Claudia W Strow, Brian K Strow

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