title: On the transduction mechanism in the photoreceptor cell of an invertebrate, studied by single photon responses.
mesh_terms: D000222:Adaptation, Physiological; D000818:Animals; D002118:Calcium / Q000502:physiology; D003623:Dark Adaptation; D006737:Horseshoe Crabs; D007473:Ion Channels / Q000502:physiology; D008027:Light; D010786:Photoreceptor Cells / Q000502:physiology* / Q000528:radiation effects; D014785:Vision, Ocular
chemical_list: D007473:Ion Channels; D002118:Calcium