title: Spatial summation in the receptive field periphery of two types of on-center neurons in cat retina.
mesh_terms: D000200:Action Potentials; D000818:Animals; D002415:Cats; D009474:Neurons / Q000502:physiology; D010775:Photic Stimulation; D012160:Retina / Q000502:physiology*; D013997:Time Factors