Inhibitory Performance Predicting Drinking Behaviours Among Young Adults.

AIMS: While inhibition has been studied extensively in correlation to alcohol abuse within the adult population, it has been studied less so in relation to the alcohol consumption habits of young adults. Accordingly, this is the first study with the objective of identifying which subcomponent(s) of inhibitory performance, behaviourally measured by the withholding of a pre-potent response, the cancellation of a pre-potent response and interference inhibition will best predict binge drinking habits among young adults.

METHODS: Forty-nine collegiate adults (41 females) with a mean age of 21.92 ± 1.34 years, performed three cognitive batteries assessing inhibition: Stop Signal task (SST), Go/No-Go task (GNG) and Simon task. Participants completed two biweekly alcohol logs, 2 and 4 weeks following inhibitory assessment.

RESULTS: Regression analysis revealed that interference inhibition (Simon task) and/or withholding inhibition (GNG) contributed to the prediction of total intoxication days and total hangover days.

CONCLUSION: These findings suggest that specific subcomponents of response inhibition, and not others, are more suitable for predicting alcohol consumption habits.