FUNCTIONAL PROPERTIES OF GANGLION-CELLS OF RHESUS-MONKEY RETINA
FUNCTIONAL PROPERTIES OF GANGLION-CELLS OF RHESUS-MONKEY RETINA
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DOI：
10.1113/jphysiol.1975.sp011086
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发表时间：
1975-01-01
影响因子：
5.5
通讯作者：
GOURAS, P
中科院分区：
文献类型：
--
作者：
DEMONASTERIO, FM;GOURAS, P
在恒河猴视网膜中心40度视觉的所有区域记录的460个细胞样本中，鉴定出了三种一般类型的细胞。2. 一类（颜色对手）具有持续的颜色对手反应和集中组织的感受野，其中通常一种锥体机制介导中心反应，一种或两种不同的锥体机制介导拮抗周围。这类细胞中有少数细胞具有非同心圆（共外延）的感受野组织。3. 第二类（宽带）具有瞬态反应和集中组织的感受野，其中通常有两个锥体机制介导中心反应。在大多数细胞中，周围与中心具有相同的光谱灵敏度，细胞具有非彩色对抗反应。在其他细胞中，周围的光谱灵敏度与中心的不同，细胞有反色反应。4. 第三类（非同心）没有集中组织的感受野。一组细胞有极具阶段性的开、关或开、关反应，没有自发活动，另一组细胞有典型的规律自发活动，只对移动刺激有反应。5. 具有同心圆感受野的颜色对抗类细胞具有最小的中心尺寸，在细胞之间没有显著差异（平均为15 μ m）；具有相位反应的非同心圆类细胞的中心尺寸最大，不同细胞的中心尺寸不同。6. 反色细胞在中央凹附近的细胞中所占比例最高；宽带细胞在视网膜的外围区域中所占比例最高；非同心圆细胞在所有区域均有均匀分布。
Three general classes of cells were identified in a sample of 460 cells recorded from all areas of the retina subserving the central 40 degrees of vision in the rhesus monkey. 2. One class (colour‐opponent) had sustained colour‐opponent responses and concentrically organized receptive fields, in which usually one cone mechanism mediated the centre response and one or two different cone mechanisms mediated the antagonistic surround. A few cells of this class had non‐concentric (co‐extensive) receptive field organization. 3. A second class (broad‐band) had transient responses and concentrically organized receptive fields, in which usually two cone mechanisms mediated the centre response. In most cells, the surround had the same spectral sensitivity as the centre and the cells had non‐colour opponent responses. In other cells, the surround had a spectral sensitivity different to that of the centre and the cells had colour‐opponent responses. 4. The third class (non‐concentric) did not have concentrically organized receptive fields. One group of cells had extremely phasic on‐, off‐ or on‐off responses and no spontaneous activity, another group had characteristically regular spontaneous activity and was responsive only to moving stimuli. 5. Cells of the colour‐opponent class with concentric receptive fields had the smallest centre‐sizes, which did not vary markedly from cell to cell (mean 15 mum); cells of the non‐concentric class with phasic responses had the largest centre‐sizes, which varied from cell to cell. 6. Colour‐opponent cells comprised the highest proportion of cells near the foveola; broad‐band cells comprised the highest proportion in the more peripheral areas of the retina; non‐concentric cells were equally represented in all areas.