MOTOR AND BEHAVIORAL-RESPONSES OBTAINED BY STIMULATION WITH CHRONIC ELECTRODES OF OPTIC LOBE OF SEPIA-OFFICINALIS
MOTOR AND BEHAVIORAL-RESPONSES OBTAINED BY STIMULATION WITH CHRONIC ELECTRODES OF OPTIC LOBE OF SEPIA-OFFICINALIS
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DOI：
10.1016/0006-8993(76)90598-9
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发表时间：
1976-01-01
期刊：
影响因子：
2.9
通讯作者：
CHANELET, J
中科院分区：
文献类型：
--
作者：
CHICHERY, R;CHANELET, J
一种使用长期植入的刺激电极的新技术可以研究自由游泳的乌贼的视叶电刺激引起的运动反应。视叶皮层的电刺激不会产生运动反应；这与前面作者的结果一致。单极电极对视叶神经纤维的刺激会产生许多不同的运动反应，支持了博伊科特在急性实验中通过相同类型的刺激获得的结果。然而，这些电极的刺激场并不总是相同，有时靠近视叶的神经结构可能受到刺激。双极电极的刺激没有这个缺点，仅引起两种截然不同的运动反应：同侧旋转和警报反应，之所以如此称呼，是因为它与高等脊椎动物的专注固定相似。这两种反应非常复杂，它们的不同组成部分相互联系在一起，就像完整动物的行为反应一样。这些反应呈现出截然不同的兴奋性特征。它们是从视叶神经纤维的许多区域获得的，在这些区域内似乎没有任何优先定位。这些结果强调了视叶在运动控制中的重要性。
A new technique using a stimulating chronically-implanted electrode permitted the study of motor responses induced by electrical stimulation of the optic lobe in a freely swimming Sepia. Electrical stimulation of the cortex of the optic lobe produces no motor response; this is in agreement with the results of preceding authors. The stimulation of the neuropil of the optic lobe by monopolar electrode produces many different motor responses, in support of Boycott''s results obtained by the same type of excitation in acute experiments. However, the field of stimulation of these electrodes could not always have been the same and it is possible that sometimes nervous structures close to the optic lobe were stimulated. Stimulation by a bipolar electrode which does not have this disadvantage, induces only 2 very different motor responses: an ipsilateral rotation and an alarm reaction, so called because of its similarities to the attentive immobilization of higher vertebrates. These 2 reactions are very complex and their different components are linked together as in a behavioral response from an intact animal. These reactions present very different characteristics of excitability. They are obtained from many areas in the neuropil of the optic lobe, within which there does not seem to be any preferential localization. These results emphasize the importance of the optic lobe in motor control.