title: Cardiac pacing and the law of initial value in rhesus monkeys.
mesh_terms: D000818:Animals; D003214:Conditioning, Classical; D004558:Electric Stimulation; D004597:Electroshock; D000882:Haplorhini; D006321:Heart / Q000502:physiology; D006339:Heart Rate; D008027:Light; D008251:Macaca; D010138:Pacemaker, Artificial; D010991:Plethysmography; D011603:Psychophysiology; D014785:Vision, Ocular