The cation selectivity and voltage dependence of the light-activated potassium conductance in scallop distal photoreceptor

Light-dependent voltage and current responses were measured from the distal hyperpolarizing photoreceptors of the scallop (Pecten irradians) retina. In normal external solution, the hyperpolarizing receptor potential was caused by a light-dependent K+ outward current. The magnitude of the hyperpolar...

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