Binge drinking inducement and its effect on behavioural inhibition in young adults
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1
University of New South Wales, School of Psychology, Australia
Aims
Heavy drinkers exhibit reduced behavioural control, however the direct effects of alcohol binging on inhibition are not know, particularly in the developing young adult brain. The current study aimed to examine changes, pre to post binge drinking inducement, in stop-signal reaction time (SSRT) and ERP components, P3, N2, and ERN amplitude. The relationship between behavioural inhibition and impulsivity was also examined to provide insight into the development of addictive alcohol consumption.
Method
At two sessions three months apart, participants with no history of binge drinking, aged 17-25, had EEG recorded while performing the stop-signal task (SST), and completed questionnaires measuring drinking habits and impulsivity levels. During the time between test sessions, participants who had consumed four or more standard drinks on one occasion by second session were classed as Bingers and all others as Non-bingers.
Results
Bingers had significantly slower SSRT compared to Non-bingers, both before and after binge drinking inducement. P3 and N2 amplitude showed no change and was not different between groups, however ERN amplitude was more negative for Non-bingers at both sessions. Bingers on average had significantly higher levels of impulsivity but only a weak relationship existed between impulsivity levels and inhibition measures.
Conclusions
Deficits in SSRT and ERN amplitude appeared to be present prior to any binge drinking suggesting behavioural inhibition deficits may lead to risky drinking behaviours. P3 and N2 amplitude results at session two indicated binge drinking did not directly affect these indices of inhibition. Lastly, participants that began to binge drink were more impulsive which may provide support for addiction models.
References
Smith, J. L., & Mattick, R. P. (2013). Evidence of deficits in behavioural inhibition and performance monitoring in young female heavy drinkers. Drug and alcohol dependence, 133(2), 398-404.
Maurage, P., Pesenti, M., Philippot, P., Joassin, F., & Campanella, S. (2009). Latent deleterious effects of binge drinking over a short period of time revealed only by electrophysiological measures. Journal of psychiatry & neuroscience: JPN, 34(2), 111-118.
Keywords:
binge drinking,
behavioural inhibition,
stop-signal task,
Event-related potentials,
young adults
Conference:
ASP2015 - 25th Annual Conference of the Australasian Society for Psychophysiology, Sydney, Australia, 2 Dec - 4 Dec, 2015.
Presentation Type:
Poster Presentation
Topic:
Psychophysiology
Citation:
Dalton
KI,
Smith
JL,
Joseph
M and
Rushby
JA
(2015). Binge drinking inducement and its effect on behavioural inhibition in young adults.
Conference Abstract:
ASP2015 - 25th Annual Conference of the Australasian Society for Psychophysiology.
doi: 10.3389/conf.fnhum.2015.219.00031
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Received:
21 Oct 2015;
Published Online:
30 Nov 2015.
*
Correspondence:
Miss. Katie I Dalton, University of New South Wales, School of Psychology, Sydney, NSW, 2052, Australia, k.dalton@unsw.edu.au