Association between reduced extraversion and right posterior fusiform gyrus gray matter reduction in chronic schizophrenia

Toshiaki Onitsuka, Paul G. Nestor, Ronald J. Gurrera, Martha E. Shenton, Kiyoto Kasai, Melissa Frumin, Margaret A. Niznikiewicz, Robert W. McCarley

Research output: Contribution to journalArticle

27 Citations (Scopus)


Objective: The authors examined the association between volume of the fusiform gyrus, a region involved in face processing, and the personality trait of extraversion in patients with schizophrenia. Method: Male patients (N=24) and age-matched male comparison subjects (N=26) completed NEO Five-Factor Inventory personality measures of extraversion and underwent high-spatial-resolution magnetic resonance imaging of anterior and posterior fusiform gyrus gray matter. Results: Low extraversion scores were significantly correlated with gray matter volume reductions in the right posterior fusiform gyrus for patients but not comparison subjects. Conclusions: Reduced right posterior fusiform gyrus volume may contribute to disease-related social disturbances, characterized by both low extraversion and reduced sensitivity to human faces.

Original languageEnglish
Pages (from-to)599-601
Number of pages3
JournalAmerican Journal of Psychiatry
Issue number3
Publication statusPublished - Mar 1 2005


All Science Journal Classification (ASJC) codes

  • Psychiatry and Mental health

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