Relative aversiveness of noise and shock.
D000818:Animals; D001362:Avoidance Learning; D004558:Electric Stimulation; D004597:Electroshock; D008297:Male; D009622:Noise; D011603:Psychophysiology; D011678:Punishment; D051381:Rats; D012054:Reinforcement, Psychology; D013312:Stress, Physiological