COMMISSURAL PROJECTIONS OF THE CORTICAL HAND MOTOR AREA IN MONKEYS
COMMISSURAL PROJECTIONS OF THE CORTICAL HAND MOTOR AREA IN MONKEYS
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DOI：
10.1002/cne.901880111
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发表时间：
1979-01-01
影响因子：
2.5
通讯作者：
JENNY, AB
中科院分区：
文献类型：
--
作者：
JENNY, AB
用放射自显影方法研究了11只猕猴对侧手运动区皮质投射的组织结构。在所研究的材料中注意到了两个普遍的观察结果。运动手区的皮质-皮质连合连接指向对侧中央前回。投射优先指向同伦和非同伦两个区域。运动皮质的局部标记区域(直径900µm)形成单个的标记末端列(直径600-900µm)。较大面积的标记运动皮质(直径3000微米)可形成对侧标记终末带。这些条带(宽度600-1000微米)以前后方向定向，并且似乎是由一系列相邻的标记列形成的。
The topographical organization of the contralateral cortical projections of the motor hand area was studied with autoradiographic methods in 11 macaque monkeys. Two general observations were noted in the material studied. The commisural cortico-cortical connections of the motor hand area were directed to the contralateral precentral gyrus. The projections were preferentially directed to both homotopic and non-homotopic areas. Focally labeled areas of motor cortex (diameter 900 .mu.m) gave rise to individual terminal columns of label (diameter 600-900 .mu.m). Larger areas of labeled motor cortex (3000 .mu.m in diameter) gave rise to contralateral terminal bands of label. These bands (600-1000 .mu.m in width) were oriented in an antero-posterior direction and appeared to be formed by a sequence of adjacent labeled columns.