title: The role of awareness in human differential autonomic classical conditioning: the necessary-gate hypothesis.
mesh_terms: D001341:Autonomic Nervous System / Q000502:physiology*; D001364:Awareness; D003071:Cognition; D003214:Conditioning, Classical / Q000502:physiology*; D005108:Extinction, Psychological; D005712:Galvanic Skin Response; D006801:Humans; D007257:Information Theory; D011674:Pulse