Mossy fibre and climbing fibre responses produced in the cerebellar cortex by stimulation of the cerebral cortex in monkeys
Mossy fibre and climbing fibre responses produced in the cerebellar cortex by stimulation of the cerebral cortex in monkeys
复制标题
通过刺激猴子大脑皮层在小脑皮层中产生苔藓纤维和攀爬纤维反应
作者：
K. Sasaki;H. Oka;S. Kawaguchi;K. Jinnai;T. Yasuda
摘要 1.记录了刺激大脑皮层多个区域引起的小脑皮层反应，并通过电生理学方法鉴定出苔藓纤维和攀爬纤维齐射引起的反应，并探讨了它们在猴子小脑前叶和后叶中的分布。在小脑皮层的某些区域记录了潜伏期分别为 4-5 毫秒和 15-18 毫秒的早期苔藓和晚期攀爬纤维反应。 2.运动皮质外侧部分(前肢和面部区域)的刺激主要在小脑皮质的前正中小叶和小脑皮质前叶(包括单小叶)的尾部引起苔藓和攀爬纤维反应,刺激运动皮质内侧部分(后肢区域)主要在小脑皮质的内侧部分(后肢区域)引起苔藓和攀爬纤维反应前叶喙部和中间部分（躯干和四肢近端区域）主要在小脑前叶中部引起反应。3.顶叶联合皮层（5区）的刺激主要在小脑前叶引起苔藓和攀爬纤维反应。前运动皮层支配对侧和同侧前叶和后叶的广泛区域。额叶联合皮层显示了小脑皮层更广泛区域的投影，尽管反应的大小相对较小。4.将结果与在猫中获得的结果进行比较，并考虑参考猴子的大脑-小脑环。
Summary1.Responses in the cerebellar cortex induced by stimulation of several areas of the cerebral cortex were recorded and identified electro-physiologically to be due to mossy fibre and climbing fibre volleys, and their distributions were explored in the anterior and the posterior lobes of the cerebellum in monkeys. Early mossy and late climbing fibre responses at latencies of 4–5 and 15–18 msec respectively were recorded in certain areas of the cerebellar cortex. They were usually predominant on the contralateral side to the stimulation.2.Stimulation of the lateral part of the motor cortex (forelimb and face area) evoked mossy and climbing fibre responses mainly in the ansoparamedian lobules and in the caudal part of the anterior lobe (including lobulus simplex) of the cerebellar cortex, stimulation of the medial part of the motor cortex (hindlimb area) provoked the responses predominantly in the rostral part of the anterior lobe, and that of the intermediate part (areas for trunk and proximal parts of the extremities) induced the responses preponderantly in the middle part of the anterior lobe of the cerebellum.3.Stimulation of the parietal association cortex (area 5) elicited mossy and climbing fibre responses chiefly in the anterior lobe of the cerebellum. The premotor cortex innervates wide areas of the anterior and posterior lobes on both contralateral and ipsilateral sides. The frontal association cortex showed the projections on even wider areas of the cerebellar cortex, although the responses were relatively small in size.4.The results were compared with those obtained in cats and considered in referring to the cerebro-cerebellar loops in monkeys.