Activity in the parietal area during visuomotor learning with optical rotation
Activity in the parietal area during visuomotor learning with optical rotation
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DOI：
10.1097/00001756-199712220-00026
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发表时间：
1997-12-22
期刊：
影响因子：
1.7
通讯作者：
Fukuda, H
中科院分区：
文献类型：
--
作者：
Inoue, K;Kawashima, R;Fukuda, H
通过对6名被试进行区域脑血流量（rCBF）测量，以研究视觉引导下视觉运动协调性不一致的指指任务学习过程中顶叶皮层活动的变化，并确定学习后重组是否影响顶叶活动，右侧顶叶后皮层rCBF显著增加。在后期，另一方面，在右半球的中央后回中发现了显著的激活。这些结果支持了后顶叶皮层在重新映射视觉运动坐标中的作用，并表明人类的中央后回参与了保持感觉运动坐标，被认为与手的自我形象有关。
REGIONAL cerebral blood flow (rCBF) was measured in six subjects to study changes of activity in the parietal cortex during learning of a visually guided pointing task with a discrepancy of visuomotor coordination and to determine whether reorganization affects the parietal activity after learning, the right posterior parietal cortex showed a significant increase in rCBF. During the late stage, on the other hand, significant activation was noted in the postcentral gyrus of the right hemisphere. These results support a role for the posterior parietal cortex in remapping visuomotor coordinates and suggest the involvement of the human postcentral gyrus in retaining sensorimotor coordinates, considered to relate to the self image of the hand.