title: Limulus visual threshold obtained from light-elicited unconditioned tail movements.
mesh_terms: D000818:Animals; D001362:Avoidance Learning; D001522:Behavior, Animal; D003214:Conditioning, Classical; D003213:Conditioning, Psychological; D003445:Crustacea / Q000502:physiology*; D008027:Light; D009068:Movement; D011603:Psychophysiology; D011930:Reaction Time; D013623:Tail / Q000502:physiology*; D014785:Vision, Ocular