期刊
SOCIAL COGNITIVE AND AFFECTIVE NEUROSCIENCE
卷 3, 期 2, 页码 168-176出版社
OXFORD UNIV PRESS
DOI: 10.1093/scan/nsn010
关键词
brain morphology; femininity; gender differences; social perception; straight gyrus
资金
- NIDCR NIH HHS [R01 DE014399, 5 R01 DE014399-05] Funding Source: Medline
- NATIONAL INSTITUTE OF DENTAL & CRANIOFACIAL RESEARCH [R01DE014399] Funding Source: NIH RePORTER
The ventral frontal cortex (VFC) has been shown to differ morphologically between sexes. Social cognition, which many studies demonstrate involves the VFC, also differs between sexes, with females being more adept than males. In a previous study of subregions of the VFC in our lab, in an adult population, size of the straight gyrus ( SG) but not the orbitofrontal cortex ( OFC), differed between sexes and correlated with better performance on a test of social cognition and with greater identification with feminine characteristics. To investigate the relationship between VFC structure and social cognition in children, VFC gray matter volumes were measured on MRIs from 37 boys and 37 girls aged 7 to 17. The VFC was subdivided into the OFC and SG. Subjects were also administered a test of social perceptiveness and a rating scale of femininity/ masculinity. In contrast to our findings in adults, the SG was slightly smaller in girls than boys. In girls, but not boys, smaller SG volumes significantly correlated with better social perception and higher identification with feminine traits. No volume differences by sex or significant correlations were found with the OFC. These data suggest a complex relationship between femininity, social cognition and SG morphology.
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