猫尾状核刺激在小脑皮质诱发的反应。

Responses evoked in the cerebellar cortex by stimulation of the caudate nucleus in the cat.

Fox M, Williams T D

J Physiol. 1968 Sep;198(2):435-49. doi: 10.1113/jphysiol.1968.sp008615.

Abstract

Responses evoked in the cerebellar cortex following stimulation of caudate nucleus are described.2. The evoked responses recorded from the surface of the cerebellar cortex were found to be of two types, one with a short (4-6 msec) latency and one with a longer (12-17 msec) latency.3. The short latency response was maximal in the lobulus simplex, the longer latency response was maximal in paramedian lobule.4. Following lesions in the inferior olive the longer latency response was absent.5. Recordings from within the cerebellar cortex showed that the short latency response was uniformly distributed throughout the grey matter, the longer latency response was maximal in the region of the Purkinje cell bodies.6. It was concluded that the short latency response was due to activation via the mossy fibres and the longer latency response to activation via the climbing fibres.7. It was found that responses could be evoked in the cerebellum following stimulation of only the latero-ventral part of the caudate nucleus; stimulation of the rest of the nucleus caused no response in the cerebellum. This division of the caudate nucleus into two parts is similar to the subdivision of the caudate nucleus made by other workers using different criteria.

摘要

描述了刺激尾状核后在小脑皮质诱发的反应。
从小脑皮质表面记录到的诱发反应有两种类型，一种潜伏期短（4 - 6毫秒），另一种潜伏期长（12 - 17毫秒）。
短潜伏期反应在单小叶中最大，长潜伏期反应在旁正中小叶中最大。
在下橄榄核损伤后，长潜伏期反应消失。
从小脑皮质内部的记录显示，短潜伏期反应在整个灰质中均匀分布，长潜伏期反应在浦肯野细胞体区域最大。
得出的结论是，短潜伏期反应是由于苔藓纤维激活所致，长潜伏期反应是由于攀缘纤维激活所致。
发现仅刺激尾状核的腹外侧部分就能在小脑中诱发反应；刺激尾状核的其余部分在小脑中不引起反应。尾状核的这种分为两部分的情况与其他研究者使用不同标准对尾状核进行的细分相似。