猴子视觉空间任务中的半球不对称性。
Hemispheric asymmetry for a visuo-spatial task in monkeys.
作者信息
Jason G W, Cowey A, Weiskrantz L
出版信息
Neuropsychologia. 1984;22(6):777-84. doi: 10.1016/0028-3932(84)90102-7.
The hypothesis that hemispheric asymmetries for visuo-spatial ability exist in rhesus monkeys was tested using a task for which the right hemisphere is specialized in man. The task required discrimination between two squares, one containing a central dot and the other a dot displaced upwards from centre. The animals' thresholds were determined before and after left-sided (LH-lesion) or right-sided (RH-lesion) unilateral occipital lobectomy combined with splenial transection, and the percentage change in threshold calculated. The LH-lesion monkeys were all worse than the RH-lesion monkeys on this measure, indicating the existence of a functional asymmetry.
利用一项人类右半球专门负责的任务，对恒河猴视觉空间能力存在半球不对称性这一假设进行了测试。该任务要求区分两个正方形，一个正方形中心有一个点，另一个正方形的点从中心向上偏移。在左侧（左半球损伤）或右侧（右半球损伤）单侧枕叶切除术并联合胼胝体横切术前后，测定动物的阈值，并计算阈值的百分比变化。在这项测试中，左半球损伤的猴子比右半球损伤的猴子表现更差，这表明存在功能不对称性。
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