RECEPTIVE FIELDS AND TRIGGER FEATURES OF GANGLION CELLS IN VISUAL STREAK OF RABBITS RETINA
RECEPTIVE FIELDS AND TRIGGER FEATURES OF GANGLION CELLS IN VISUAL STREAK OF RABBITS RETINA
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DOI：
10.1113/jphysiol.1967.sp008140
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发表时间：
1967-01-01
影响因子：
5.5
通讯作者：
LEVICK, WR
中科院分区：
文献类型：
--
作者：
LEVICK, WR
本文对家兔视网膜中央部视网膜神经节细胞的特性进行了观察。以前在周边视网膜中遇到的5种类型的单位也发现在中央区域。它们的感受野较小，呈长轴水平的椭圆形。此外，还发现了3种新的类型：方向选择性细胞、局部边缘检测器和均匀性检测器。方向选择性细胞敏感的垂直或水平延伸的目标。分析表明，它们是改良的同心单位，具有不完全的对抗性包围。局部边缘探测器对感受野内对比边界的出现或移动做出反应。对感受野周围区域的类似刺激也会抑制它们。对边缘检测的演示给予了详细的关注。在没有刺激的情况下，均匀性检测器具有相对高水平的持续活动。所有形式的刺激（灯光闪烁或关闭、较暗或较亮目标的移动）都会减少或停止正在进行的活动。的结果进行了比较与其他物种中描述的行为。
A survey of the properties of retinal ganglion cells in the central part of the rabbit retina has been carried out. The 5 types of unit previously encountered in the peripheral retina were also found in the central region. Their receptive fields were smaller, andtendedto be oval-shaped with the long axis horizontal. In addition, 3 new types were discovered: orientation-selective cells, local-edge-detectors, uniformity-detectors. Orientation-selective cells were sensitive to either vertically or horizontally extended targets. Analysis suggested they were modified concentric units with an incomplete antagonistic surround. Local-edge-detectors responded to the appearance or movement of a contrasting border within the receptive field. They were inhibited by similar stimulation of the region surrounding the receptive field. Detailed attention was given to the demonstration of edge-detection. Uniformity detectors had a relatively high level of ongoing activity in the absence of stimulation. All forms of stimulation (lights flashed on or off, movement of darker or lighter targets) produced a diminution or cessation of ongoing activity. The results are compared with behaviour described in other species.