title: Effects of US intensity and number of CS-US pairings on maintenance of vicious-circle behavior in rats by secondary punishment.
mesh_terms: D000161:Acoustic Stimulation; D000818:Animals; D001362:Avoidance Learning; D001522:Behavior, Animal; D003214:Conditioning, Classical; D003216:Conditioning, Operant; D004597:Electroshock; D005108:Extinction, Psychological; D005239:Fear; D008297:Male; D009043:Motor Activity; D011678:Punishment; D051381:Rats