title: Neural organization of a molluscan visual system.
abstract: Intracellular recording was used to study the response to light of second order visual cells within the optic ganglion of Hermissenda crassicornis. Simultaneous recordings revealed that type B but not type A photoreceptors inhibit the second order cells. Additional details of the neural organization of the visual system were obtained. Possible functional implications of this neural organization are discussed.
mesh_terms: D000818:Animals; D004594:Electrophysiology; D005123:Eye / Q000033:anatomy & histology / Q000166:cytology; D005724:Ganglia / Q000502:physiology; D008974:Mollusca / Q000502:physiology*; D010775:Photic Stimulation; D010786:Photoreceptor Cells / Q000502:physiology*; D014795:Visual Pathways / Q000502:physiology*