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ANALYSIS OF NEURONAL RESPONSIVENESS IN PRESTRIATE CORTEX USING CONPUTER-CONTROLLED HIGH-SPEED CRT DISPLAYS.

使用计算机控制的高速 CRT 显示器分析前纹状皮层的神经元反应性。

基本信息

批准号：
61480111
负责人：
TOYAMA Keisuke
金额：
$ 4.48万
依托单位：
KYOTO PREFECTURAL SCHOOL OF MEDICINE
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1986
资助国家：
日本
起止时间：
1986 至 1988
项目状态：
已结题

项目摘要

A three-dimensional (3D) visual stimulator was constructed of a computer, a RAM disk and two high speed CRTs to present visual cues (motion disparity and size change) for perception of 3D motion. Neuronal responsiveness was investigated in Clare-Bishop (CB) cortex of the normal and siamese cats using the 3D stimulator. Normal CB cells were binocularly driven and were optimally activated by single presentation of motion disparity (MD) or combined presentation of MD with size change (SC). Those responsive to single presentation of MD were classified into three response types: 1) Approaching (AP) cells optimally activated by the MD for AP motion, recessive (RC) cells activated by the MD for RC motion, and frontoparallel (FP) cells activated by the MD for FP motion. Those responsive to the combined visual cues included AP and RC responsive to either a combination of the MD for AP motion vs size increase or that of the MD for RC motion vs size decrease.In siamese cats practically all cells in areas 17-19 were monocularly driven, while numerous binocular cells were found in DB cortex. Correspondingly, CB cortex contained all types of 3D cells responsive to single presentation of MD or combined presentation of MD and SC. Therefore, at least in siamese cats the CB cortex is the first stage that encodes binocular 3D motion signals, and it is likely that the CB cortex is the place for integration of 3D motion signals also in normal cats.

一个三维（3D）视觉刺激器的计算机，一个RAM磁盘和两个高速CRT构建的视觉线索（运动视差和大小变化）的感知3D运动。用三维刺激仪研究了正常猫和暹罗猫的Clare-Bishop（CB）皮层神经元反应性。正常CB细胞被双眼驱动，并通过单一呈现运动差异（MD）或MD与大小变化（SC）的组合呈现而被最佳激活。对MD单次呈现的反应分为3种类型：1）接近（AP）细胞，MD激活的隐性（RC）细胞，MD激活的额平行（FP）细胞，MD激活的AP细胞，MD激活的RC细胞，MD激活的FP细胞。那些响应于组合视觉线索包括AP和RC响应于AP运动与大小增加的MD或RC运动与大小reduce.In暹罗猫的MD的组合几乎所有的细胞在区域17-19单眼驱动，而许多双眼细胞被发现在DB皮质。相应地，CB皮质包含所有类型的3D细胞响应于MD的单一呈现或MD和SC的组合呈现。因此，至少在暹罗猫的CB皮质是编码双眼3D运动信号的第一阶段，并且很可能CB皮质也是正常猫的3D运动信号整合的地方。