Paradoxical enhancement of conditioned suppression.
D000818:Animals; D001521:Behavior Therapy; D001522:Behavior, Animal; D003214:Conditioning, Classical; D003216:Conditioning, Operant; D004327:Drinking Behavior; D004597:Electroshock; D005108:Extinction, Psychological; D005239:Fear; D008297:Male; D051381:Rats; D013016:Sound