Frog Retina: Detection of Movement

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Science  19 Nov 1965:
Vol. 150, Issue 3699, pp. 1050-1051
DOI: 10.1126/science.150.3699.1050


The response of class 2 ganglion cells in the frog retina is dependent on the angular velocity of a black visual stimulus whose size (1.20°) and contrast against a background are held constant. The relation between neuronal discharge rate and the angular velocity of the stimulus may be expressed as a power function.