Sex and handedness differences in cerebral blood flow during rest and cognitive activity.
Sex and handedness differences in cerebral blood flow during rest and cognitive activity.
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DOI：
10.1126/science.7089587
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发表时间：
1982-08
期刊：
影响因子：
56.9
通讯作者：
R. Gur;R. Gur;W. Obrist;J. P. Hungerbuhler;D. Younkin;A. D. Rosen;B. Skolnick;M. Reivich
中科院分区：
文献类型：
--
作者：
R. Gur;R. Gur;W. Obrist;J. P. Hungerbuhler;D. Younkin;A. D. Rosen;B. Skolnick;M. Reivich
认知活动导致大脑半球的血流量增加。对于语言任务，左半球的增加更大，而对于空间任务，右半球的增加更大。半球血流不对称的方向和程度受到性别和惯用手的影响，女性每单位大脑重量的血流量较高，女性和左撇子的快速清除组织（可能是灰质）比例较高。
Cognitive activity resulted in increased flow of blood to the cerebral hemispheres. The increase was greater to the left hemisphere for a verbal task and greater to the right hemisphere for a spatial task. The direction and degree of hemispheric flow asymmetry were influenced by sex and handedness, females having a higher rate of blood flow per unit weight of brain, and females and left-handers having a greater percentage of fast-clearing tissue, presumably gray matter.