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Related Experiment Video

Updated: Jun 21, 2026

Disruption of Frontal Lobe Neural Synchrony During Cognitive Control by Alcohol Intoxication

Disruption of Frontal Lobe Neural Synchrony During Cognitive Control by Alcohol Intoxication

Published on: February 6, 2019

Binge drinking affects attentional and visual working memory processing in young university students.

Alberto Crego¹, Socorro Rodriguez Holguín, María Parada

¹Department of Clinical Psychology and Psychobiology, University of Santiago de Compostela, Galicia, Spain. albert.crego@usc.es

Alcoholism, Clinical and Experimental Research

|August 14, 2009

Summary

Binge drinking in university students alters brain activity during memory tasks, showing increased attention demands and impaired working memory. This study reveals electrophysiological differences in young binge drinkers compared to controls.

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Published on: January 5, 2018

Area of Science:

Neuroscience
Cognitive Psychology
Addiction Research

Background:

Binge drinking (BD) is prevalent among university students and known to cause brain damage, particularly in developing brains.
Previous research indicates alcohol's detrimental effects on the brain, necessitating further investigation into its impact on cognitive functions in young adults.

Purpose of the Study:

To investigate the effects of binge drinking on brain functioning in male and female university students.
To analyze electrophysiological responses during a visual working memory task in binge drinkers versus control groups.

Main Methods:

Recorded event-related potentials (ERPs) using 32 scalp electrodes in 95 first-year university students (18-20 years old).
Utilized principal components analysis to examine N2 and P3 components of ERPs during a visual "identical pairs" continuous performance task.
Compared 42 binge drinkers (BD) with 53 control participants.

Main Results:

Binge drinkers (BD) exhibited a significantly larger N2 component in central and parietal regions compared to controls, suggesting increased attentional effort.
Control participants showed a larger P3 component in the matching condition across frontal, central, and parietal regions.
The BD group did not display significant differences in the P3 component between conditions, indicating potential working memory impairments.

Conclusions:

Electrophysiological differences were confirmed between young university student binge drinkers and controls during a high working memory load visual task.
Elevated N2 in BD group suggests greater attentional resource allocation for task performance.
Lack of P3 differentiation in BD group points to impaired ability to distinguish relevant from irrelevant information, possibly affecting working memory processes.