Does alcohol modify responses to reward in a competitive task?
Alcohol in two doses (0.75g/kg and 0.25/kg) and a placebo were administered to three matched groups of subjects. Subjective ratings and breath alcohol levels were completed pre-intake and at 30 min intervals up to 2 hr after intake. At 1 hr post-intake, the subjects took part in a competitive task with increasing rewards during which cardiac and electrodermal activity were monitored. Alcohol had very little effect. It did not affect the level of reward administered nor the physiological parameters measured. The only mood effect was sedation. There was no evidence of tension reduction or response disinhibition.
Bond
A
A
Department of Psychiatry, Institute of Psychiatry, London, U.K.
Lader
M
M
D000328:Adult; D000339:Affect / Q000187:drug effects; D000374:Aggression / Q000187:drug effects; D000428:Alcohol Drinking / Q000523:psychology*; D001143:Arousal / Q000187:drug effects*; D001288:Attention / Q000187:drug effects; D003163:Competitive Behavior / Q000187:drug effects*; D004305:Dose-Response Relationship, Drug; D000431:Ethanol / Q000493:pharmacokinetics; D005260:Female; D005712:Galvanic Skin Response / Q000187:drug effects; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D008297:Male; D009042:Motivation; D011930:Reaction Time / Q000187:drug effects; D012201:Reward
D000431:Ethanol