title: A miniaturized photocell assembly for monitoring heart rate in freely behaving Aplysia (Mollusca: Gastropoda).
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000502:physiology*; D003307:Copulation / Q000502:physiology; D004581:Electronics / Q000295:instrumentation*; D006321:Heart / Q000502:physiology; D006339:Heart Rate; D008974:Mollusca / Q000502:physiology*; D009043:Motor Activity / Q000502:physiology; D013686:Telemetry