...
首页> 外文期刊>Canadian Journal of Physiology and Pharmacology >Response component analysis of simple and complex cells of area 18 during depression of area 17.
【24h】

Response component analysis of simple and complex cells of area 18 during depression of area 17.

机译:压低区域17期间区域18的简单和复杂单元的响应分量分析。

获取原文
获取原文并翻译 | 示例
           

摘要

Simple and complex cells of visual areas of cats may be reliably classified according to the modulatory index (MI) of their responses. This investigation is aimed at analysing the MI in area 18 when a small region (about 200-400 microm in diameter) of area 17 was inactivated with a microinjection of GABA, in anesthetized cats. Cells were stimulated with sine-wave gratings whose orientation, spatial, and temporal frequencies were optimal for the studied unit. The AC and DC response components, and the MI were computed along with fast Fourier transforms of evoked discharges recorded as peristimulus time histograms. Results showed that these response components were relatively unaffected in simple cells, whereas complex cells exhibited large changes when area 17 was silenced. In particular, a large proportion of complex cells showed a MI greater than 1, thereby adopting a response pattern resembling simple cells. It is suggested that this subpopulation of complex cells receives a direct input from geniculate X cells.
机译:猫的视觉区域的简单和复杂细胞可以根据其反应的调节指数(MI)可靠地分类。这项研究的目的是在麻醉的猫中,当通过微量注射GABA灭活区域17的一小部分区域(直径约200-400微米)时,分析区域18中的MI。用正弦波光栅刺激细胞,其方向,空间和时间频率对于所研究的单元而言是最佳的。 AC和DC响应分量以及MI与诱发放电的快速傅里叶变换一起计算,记录为刺激时间直方图。结果表明,这些反应成分在简单细胞中相对不受影响,而当区域17沉默时,复杂细胞表现出较大的变化。特别地,大部分复杂细胞显示出MI大于1,从而采用类似于简单细胞的响应模式。建议复杂细胞的这种亚群从膝状X细胞接受直接输入。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号