PHASE OF SUPPRESSION FOLLOWING EACH RETINAL b-WAVE IN FLICKER

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Abstract
Repetitive stimulation (flicker) of cat''s eye causes b-wave of electroretinogram to adjust itself to a constant size below the size of the b-wave of the first flash. This is shown to be a function of the dark interval. A process of suppression is initiated with about the critical duration of the light flash. During the dark interval excitability for b-waves recovers exponentially and the size of the flickering wavelets depends upon the time allowed for recovery, hence upon the duration of the dark and not upon that of the light phase in flicker.