Literature DB >> 10601007

Sex differences in the inferior parietal lobule.

M E Frederikse1, A Lu, E Aylward, P Barta, G Pearlson.   

Abstract

The inferior parietal lobule (IPL) - a neocortical region and part of the heteromodal association cortex (HASC) - has been hypothesized to exhibit sexual dimorphism, as do other HASC regions, particularly with regard to asymmetry. Using a reliable method for measuring IPL gray matter volume based upon individual sulcal-gyral landmarks, we measured this region on magnetic resonance imaging scans from a sample of 15 individually matched pairs of normal male and female subjects. Male subjects showed significantly larger left, but not right, IPL volumes when compared to females. Males also showed a leftward (left > right) asymmetry for the IPL, with a less marked opposite asymmetry in females. Such sexual dimorphisms may possibly underlie the subtle cognitive differences observed between the sexes.

Mesh：

Year:  1999        PMID： 10601007     DOI： 10.1093/cercor/9.8.896

Source DB:  PubMed          Journal:  Cereb Cortex        ISSN： 1047-3211            Impact factor:   5.357


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