Eye movements evoked by cerebellar stimulation in the alert monkey.

Eye movements evoked by cerebellar stimulation in the alert monkey.
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警觉猴子的小脑刺激引起的眼球运动。

DOI:
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发表时间:
1973
影响因子:
2.5
通讯作者:
D. Robinson
D. Robinson
中科院分区:
医学3区
文献类型:
--
作者:
S. Ron;D. Robinson

文献摘要

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小脑痉挛早已引起眼球运动(I 1,20)。这种诱发的运动已经被许多其他人重新研究(例如,8,19,21,28)和最近的科恩等人(5)。关于小脑的哪些区域在受到刺激时会产生眼球运动,以及这些运动的性质和方向,许多研究都没有达成一致。唯一一致的是,刺激蚓部、第六和第七叶,引起同侧、水平眼球运动(5,X7,18,20,21)。最有争议的结果与刺激大脑半球有关。已经报道了各种眼球运动,包括同侧、水平运动(20)、眼球震颤、对侧或向上运动(8)和旋转向上运动(11)。小脑核刺激也得到了有争议的结果。刺激小脑的某些区域被认为可以引起眼球运动,但刺激部位与诱发运动的方向之间没有任何明显的相关性(5,8,9,18,19)。通常,只报告给定小脑分区中一两个部位的结果,而不是彻底的局部探索。没有一个小脑结构的刺激不会引起眼球运动,这一事实意味着它们在小脑的任何地方都有代表性。眼球运动不是大多数研究者的主要兴趣(11,18,19,21,25,28);眼球运动没有详细研究,对它们的描述是定性和主观的。在麻醉动物身上进行的研究很难进行-
CEREBELLAR STIMULATION has long been known to evoke eye movements (I 1, 20). Such evoked movements have been reinvestigated by many others (e.g., 8, 19, 21, 28) and most recently by Cohen et al. (5). There is not much agreement among the many studies concerning which areas of the cerebellum produce eye movements when stimulated and the nature and direction of those movements. The only agreement is that stimulation of the vermis, lobes VI and VII, evoke ipsilateral, horizontal eye movements (5, X7, 18, 20, 21). The most controversial results relate to stimulation of the hemispheres. A variety of eye movements have been reported that included ipsilateral, horizontal movements (20), nystagmus, contralateral or up movements (8), and rotatory up movements (11). Controversial results were also obtained from cerebellar nuclei stimulation. Stimulation of some areas of the cerebellum were considered to evoke eye movements without any apparent correlation between the site stimulated and the direction of the evoked movement (5, 8, 9, 18, 19). Often, the results from only one or two sites in a given cerebellar subdivision were reported rather than a thorough local exploration. The fact that there is not a single cerebellar structure from which stimulation by one or another investigator did not evoke eye movements would imply that they are represented everywhere in the cerebellum. Eye movements were not the primary interest of most investigators (11, 18, 19, 21, 25, 28); the eye movements were not studied in detail and descriptions of them were qualititative and subjective. Studies done on anesthetized animals are difficult to inter-