Preliminary sex differences in human cortical BOLD fMRI activity during the preparation of increasingly complex visually guided movements
Preliminary sex differences in human cortical BOLD fMRI activity during the preparation of increasingly complex visually guided movements
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DOI：
10.1111/j.1460-9568.2007.05358.x
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发表时间：
2007-02-01
影响因子：
3.4
通讯作者：
Sergio, Lauren E.
中科院分区：
文献类型：
--
作者：
Gorbet, Diana J.;Sergio, Lauren E.
在过去，人们经常假设视觉引导运动的皮质网络对男性和女性是相同的。在这里，我们使用功能磁共振成像(FMRI)来显示人类大脑活动在视觉到运动转换任务中与性别相关的显著差异。尽管男性和女性的行为表现没有差异，但血氧水平依赖的fMRI活动水平在几个皮质区域存在明显的性别差异，此前已证明这些区域对视觉引导运动很重要。这些区域包括初级感觉运动区、背侧运动前运动区、顶上沟区和外侧沟区。此外，数据表明，这些性别差异的性质取决于视觉线索和它所引导的运动反应之间的空间映射。
In the past it has often been assumed that the cortical networks for visually guided movement are the same for males and females. Here we use functional magnetic resonance imaging (fMRI) to show significant sex-related differences in human brain activity during visual-to-motor transformation tasks. Although the behavioural performance of the male and female groups did not differ, sex-related differences in levels of blood oxygen level-dependent fMRI activity are apparent in several cortical areas that have previously been demonstrated to be important for visually guided movements. These areas include the primary sensorimotor, dorsal premotor, superior parietal and lateral sulcus regions. Furthermore, the data indicate that the nature of these sex differences depends on the spatial mapping between a visual cue and the motor response that it guides.