Cardiac responses in aversive situation with and without avoidance possibility.
D000161:Acoustic Stimulation; D000293:Adolescent; D000328:Adult; D001288:Attention; D001362:Avoidance Learning; D003216:Conditioning, Operant; D004597:Electroshock; D005246:Feedback; D006339:Heart Rate; D006801:Humans; D008297:Male