Corticostriatal and corticotectal neurons in area 6 of the cat during fixation and eye movements.
Corticostriatal and corticotectal neurons in area 6 of the cat during fixation and eye movements.
复制标题
猫注视和眼球运动期间第 6 区的皮质纹状体和皮质顶盖神经元。
DOI：
10.1017/s095252389815109x
复制
发表时间：
1998
影响因子：
1.9
通讯作者：
Gafka,AC
中科院分区：
文献类型：
--
作者：
Weyand,TG;Gafka,AC
We studied the visuomotor properties of 54 corticostriatal (CS) and 38 corticotectal (CT) neurons in a region of area 6 that largely corresponds to the cat's frontal eye fields in five cats trained to do simple oculomotor tasks. Overall, these cells were similar to the general population of area 6 neurons described in the previous paper (Weyand & Gafka, 1998), with very few showing pre-saccadic activity. Likewise, CS and CT cells were similar to each other, although only CS cells showed activity exclusively related to the delivery of the reward and CT cells were more likely to be active during saccades. Variability in visual response latencies and the observation that some cells showed initial visual suppression suggest CS and CT cells reflect the output of a variety of intracortical circuits. Despite similar response properties and overlapping laminar origin, CS and CT circuits appear largely independent. Among 32 cells that we could electrically activate (either synaptically or antidromically) from the superior colliculus, only two could also be activated from stimulating electrodes in the striatum. Similarly, 23 of 25 cells electrically activated from the striatum could not be activated from the superior colliculus. Although few of these efferent cells exhibited pre-motor activity, many exhibit properties that could contribute to gaze control.
