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Sex differences in the inferior parietal lobule

被引：93
作者：
Frederikse, ME
Lu, A
Aylward, E
Barta, P
Pearlson, G
机构：
[1] Johns Hopkins Univ, Sch Med, Dept Psychiat & Behav Sci, Div Psychiat Neuroimaging, Baltimore, MD 21287 USA
[2] Univ Washington, Sch Med, Dept Radiol, Seattle, WA 98195 USA
来源：
CEREBRAL CORTEX | 1999年 / 9卷 / 08期
关键词：
D O I：
10.1093/cercor/9.8.896
中图分类号：
Q189 [神经科学];
学科分类号：
071006 ;
摘要：
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.
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收藏
页码：896 / 901
页数：6
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