What is skin potential level?
D000818:Animals; D001143:Arousal; D002415:Cats; D002490:Central Nervous System / Q000502:physiology; D003714:Denervation; D005528:Foot / Q000502:physiology; D005712:Galvanic Skin Response; D006614:Hindlimb / Q000502:physiology; D012879:Skin Physiological Phenomena