BIMANUAL COORDINATION IN CALLOSAL AGENESIS AND PARTIAL COMMISSUROTOMY
BIMANUAL COORDINATION IN CALLOSAL AGENESIS AND PARTIAL COMMISSUROTOMY
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DOI：
10.1016/0028-3932(88)90053-x
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发表时间：
1988-01-01
期刊：
影响因子：
2.6
通讯作者：
JACOBSON, I
中科院分区：
文献类型：
--
作者：
JEEVES, MA;SILVER, PH;JACOBSON, I
[Preilowski，B.F.B.在大脑定位中，第116-131页，施普林格，柏林，1975；雷诺兹，D.M.和杰维斯，M.A.神经心理学，12,287-290,1974]的研究指出了大脑半球间直接整合对于每个半球内下运动系统的精细调节的重要性。在双手追踪实验中，当取消外部视觉反馈时，部分分开的患者在绘制需要双手不对称输入的线条时，被切断了胼胝体的前部，产生了显著的偏差。由Preilowski设计的这项任务被交给了两只成年无足趾动物和11岁的无足趾男孩，以及11岁的女孩，在这个女孩身上，三分之一的胼胝体中央已经被切断。非大脑皮质部分切开术患者的表现与Preilowski的S的部分联合切开术患者相似。这一结果被解释为证实了胼胝体的半球间整合功能。认为它们进一步证明了非跟腱手术患者存在半球优势的运动控制。部分联合切开术患者的表现与正常人没有差别。她的结果与以下观点是一致的，即对于每个大脑半球的下运动系统的半球间整合是关键的部分。
Studies [Preilowski, B. F. B. in Cerebral Localization, pp. 116-131, Springer, Berlin 1975; Reynolds, D. M. and Jeeves, M. A. Neuropsychologia 12, 287-290, 1974] of bilateral motor coordination in commissurotomy patients pointed to the importance of direct interhemispheric integration for the fine regulation of the lower motor system within each hemisphere. When external visual feedback was withdrawn in the performance of a bimanual tracking taks, partial commissurotomy patients, in whom the anterior portions of the callosum were cut, deviated significantly when drawing lines which required asymmetrical input from the two hands. The task devised by Preilowski was given to two adult acallosals, and 11 yr old acallosal boy, and on 11 yr old girl in whom the center one-third of the corpus callosum had been sectioned. The acallosals performed in a manner similar to Preilowski''s partial commissurotomy patients. The results were interpreted as confirming the interhemispheric integrative function of the corpus callosum. It is argued that they constitute further evience for the existence of hemispheric dominance for motor control in acallosals. The partial commissurotomy patient did not differ in performance from normals. Her results were consistent with the view that it is the anterior parts of the callosum which are crucial for the interhemispheric integration of the lower motor system in each hemisphere.