Fear-reducing effect of graduated versus non-graduated forced exposure.
D000818:Animals; D001362:Avoidance Learning; D001522:Behavior, Animal; D003213:Conditioning, Psychological; D004597:Electroshock; D004924:Escape Reaction; D005239:Fear; D008297:Male; D051381:Rats; D012054:Reinforcement, Psychology; D013997:Time Factors