title: Changes in cardiac refractory period during signalled shock avoidance in dogs.
mesh_terms: D000161:Acoustic Stimulation; D000818:Animals; D001362:Avoidance Learning / Q000502:physiology*; D005117:Cardiac Complexes, Premature / Q000503:physiopathology; D003213:Conditioning, Psychological / Q000502:physiology; D004285:Dogs; D004597:Electroshock; D006321:Heart / Q000503:physiopathology; D006339:Heart Rate; D010138:Pacemaker, Artificial; D011930:Reaction Time / Q000502:physiology*