TY  - JOUR
PY  - 2017//
TI  - Drinking status but not acute alcohol consumption influences delay discounting
JO  - Human psychopharmacology
A1  - Adams, Sally
A1  - Attwood, Angela S.
A1  - Munafò, Marcus R.
SP  - e2617
EP  - e2617
VL  - 32
IS  - 5
N2  - OBJECTIVE: The aim of this study was to investigate the following: (a) the effects of acute alcohol on delay discounting; (b) the effects of drinking status on delayed discounting; and (c) whether these effects differ according to reward type (alcohol vs. money). <br><br>METHODS: Heavy and light social alcohol users (n = 96) were randomized to receive either an acute dose of alcohol at 0.4 or 0.6 g/kg or placebo in a between-subjects, double-blind design. Delay discounting of alcohol and monetary rewards was measured using a hyperbolic model, with higher scores indicative of greater delay discounting. <br><br>RESULTS: ANOVA of discount scores indicated a main effect of reward type, where all participants had higher discount scores for alcohol versus money rewards. A main effect of drinking status was also observed, where heavier drinkers had higher discount scores compared with lighter drinkers. We did not observe a main effect of acute alcohol use on delay discounting or the hypothesized interactions between acute alcohol use and drinking status with reward type. <br><br>CONCLUSIONS: Our data suggest that heavier drinkers discount the value of delayed rewards more steeply than lighter drinkers. Delay discounting may therefore be a promising marker of heavy alcohol consumption in social drinkers.<br><br>Copyright © 2017 John Wiley & Sons, Ltd.<p />  <p>Language: en</p>
LA  - en
SN  - 0885-6222
UR  - http://dx.doi.org/10.1002/hup.2617
ID  - ref1
ER  -