title: Phasic heart rate changes in reaction time, shock avoidance, and unavoidable shock tasks: are hypothetical generalizations about different S1-S2 tasks justified?
mesh_terms: D000293:Adolescent; D000328:Adult; D001362:Avoidance Learning / Q000502:physiology; D004597:Electroshock; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D008297:Male; D011433:Propranolol / Q000494:pharmacology; D011930:Reaction Time / Q000502:physiology
chemical_list: D011433:Propranolol