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Disruption of Frontal Lobe Neural Synchrony During Cognitive Control by Alcohol Intoxication
Published on: February 6, 2019
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Binge drinking affects brain oscillations linked to motor inhibition and execution
Eduardo López-Caneda1, Socorro Rodríguez Holguín2, Ángeles Correas3
11 Research Center in Psychology, University of Minho, Braga, Portugal.
Journal of Psychopharmacology (Oxford, England)
|February 8, 2017
Summary
Young binge drinkers show disrupted brain oscillations in delta and theta frequencies during motor control tasks. This suggests neural anomalies similar to alcohol-dependent individuals, highlighting oscillatory activity as a sensitive biomarker.
Area of Science:
- Neuroscience
- Neurophysiology
- Addiction Research
Background:
- Adolescent binge drinking is linked to brain function anomalies.
- Event-related oscillations (EROs) may indicate alcohol-related neurofunctional damage.
- Limited research exists on binge drinking's impact on EROs during tasks.
Purpose of the Study:
- To investigate brain oscillations during motor inhibition and execution in young binge drinkers (BDs).
- To compare oscillatory responses in BDs with age-matched controls.
Main Methods:
- Electroencephalography (EEG) recorded from 64 electrodes in 72 university students (36 BDs, 36 controls).
- Participants performed a visual Go/NoGo task.
- Analysis of event-related oscillations and event-related potentials (ERPs), including Go-P3 and NoGo-P3 components.
Main Results:
- No significant differences in ERPs between BDs and controls.
- BDs exhibited lower delta and theta frequency oscillations than controls during both Go and NoGo conditions.
- Reduced oscillatory response in BDs suggests impaired neural processing.
Conclusions:
- Findings align with studies showing reduced delta/theta oscillations in alcoholics during Go/NoGo tasks.
- Young BDs display neural oscillation disruptions similar to alcohol-dependent individuals.
- Oscillatory brain activity may serve as a sensitive indicator of brain anomalies in young BDs.
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