A REAPPRAISAL OF RAT MOTOR CORTEX ORGANIZATION BY INTRACORTICAL MICROSTIMULATION
A REAPPRAISAL OF RAT MOTOR CORTEX ORGANIZATION BY INTRACORTICAL MICROSTIMULATION
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DOI：
10.1016/0006-8993(85)91188-6
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发表时间：
1985-01-01
期刊：
影响因子：
2.9
通讯作者：
LAMARCHE, M
中科院分区：
文献类型：
--
作者：
GIOANNI, Y;LAMARCHE, M
在光麻醉(氯胺酮)大鼠中，用皮质内微刺激重新研究运动皮质的组织结构。除吻侧触须外，还有一个后外侧触须区域，并从该触须区域的一部分引出对侧眼皮的眨眼。一些大脑皮层的表现，如颈部或尾部，大部分与邻近区域重叠。植物效应(主要是肌病和吞咽)来自内侧皮质条。在PL触须区域内，可以观察到与触列有关的局部排列，而在腿部区域，没有单独的肌肉表现。这些结果与以前发表的地图进行了比较，并从特异性、肌肉复制和运动区重叠的角度进行了讨论。
The organization of the motor cortex was reinvestigated with intracortical microstimulation, in light-anesthetized (ketamine) rats. A posterolateral (PL) vibrissae area was found in addition to the rostral one, and blinks of the contralateral eyelids were elicited from a part of this PL area. Several cortical representations such as neck or tail were largely overlapping with neighboring areas. Vegetative effects (mainly myosis and swallowing) were obtained from a medial cortical strip. Within the PL vibrissae area, a topical arrangement related to the vibrissal rows was observed, whereas in the leg areas, no individual representation of muscles could be evidenced. These results are compared with the maps previously published, and discussed in terms of specificity, musculotopy and overlapping of motor areas.