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Isolated photopic goldfish retinas were stimulated and adapted by red light, and the spike activity of single ganglion cells was monitored by micro-electrodes.2. A unit's threshold to illumination of one part of its receptive field was often raised by adapting spots which fell elsewhere. An adapting spot of fixed area and intensity always desensitized the unit most when focused at the test position.3. When adapting and testing spots were given concentrically, the large adapting spots raised the test threshold more than the smaller adapting spots, even though all completely covered the test spot. Quantitative considerations rule out scattered light as an explanation; there must be a neural mechanism, an adaptation pool, which sets the sensitivity on the basis of quanta received over a field hundreds of microns in diameter.4. The desensitization is a non-linear function of area and intensity.5. The adaptation pool's field is not coincident with the ganglion cell's receptive field.

分离出的明视金鱼视网膜用红光进行刺激和适应处理，并用微电极监测单个神经节细胞的放电活动。
一个单位对其感受野某一部分光照的阈值常常会因落在其他位置的适应光斑而提高。固定面积和强度的适应光斑聚焦在测试位置时，总是使该单位的敏感度降低最多。
当适应光斑和测试光斑同心给出时，大的适应光斑比小的适应光斑使测试阈值提高得更多，即使所有光斑都完全覆盖了测试光斑。定量分析排除了散射光作为解释的可能性；必定存在一种神经机制，一个适应池，它根据在直径数百微米的区域内接收到的量子来设定敏感度。
脱敏是面积和强度的非线性函数。
适应池的区域与神经节细胞的感受野不一致。

Isolated photopic goldfish retinas were stimulated and adapted by red light, and the spike activity of single ganglion cells was monitored by micro-electrodes.2. A unit's threshold to illumination of one part of its receptive field was often raised by adapting spots which fell elsewhere. An adapting spot of fixed area and intensity always desensitized the unit most when focused at the test position.3. When adapting and testing spots were given concentrically, the large adapting spots raised the test threshold more than the smaller adapting spots, even though all completely covered the test spot. Quantitative considerations rule out scattered light as an explanation; there must be a neural mechanism, an adaptation pool, which sets the sensitivity on the basis of quanta received over a field hundreds of microns in diameter.4. The desensitization is a non-linear function of area and intensity.5. The adaptation pool's field is not coincident with the ganglion cell's receptive field.

分离出的明视金鱼视网膜用红光进行刺激和适应处理，并用微电极监测单个神经节细胞的放电活动。
一个单位对其感受野某一部分光照的阈值常常会因落在其他位置的适应光斑而提高。固定面积和强度的适应光斑聚焦在测试位置时，总是使该单位的敏感度降低最多。
当适应光斑和测试光斑同心给出时，大的适应光斑比小的适应光斑使测试阈值提高得更多，即使所有光斑都完全覆盖了测试光斑。定量分析排除了散射光作为解释的可能性；必定存在一种神经机制，一个适应池，它根据在直径数百微米的区域内接收到的量子来设定敏感度。
脱敏是面积和强度的非线性函数。
适应池的区域与神经节细胞的感受野不一致。

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