Polarity of Dark‐Adapted Retinal on/off‐Elements as a Function of Wave‐Length

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Abstract
Summary.: The micro‐electrode technique and the eye of the fully dark‐adapted cat have been used for measurements of off/on‐ratios and polarities of retinal elements tested with red, green and blue light.With red stimuli anodal and cathodal elements are distributed symmetrically over the off/on‐ratios, but, if the latter be determined with green or blue light, elements of lower off/on‐ratio tend to be cathodal those of higher off/on‐ratio anodal.The results are correlated with the relative values for the off/on‐ratios in the three wave‐lengths.

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