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Updated: May 11, 2026
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Disruption of Frontal Lobe Neural Synchrony During Cognitive Control by Alcohol Intoxication
Published on: February 6, 2019
Brain modifications after acute alcohol consumption analyzed by resting state fMRI
Federica Spagnolli1, Roberto Cerini, Nicolò Cardobi
1Department of Radiology, "Gianbattista Rossi" Hospital, University of Verona, 37134 Verona, Italy.
Magnetic Resonance Imaging
|May 18, 2013
Summary
Acute alcohol consumption significantly reduces resting-state brain connectivity in young adults. This neuroimaging study reveals decreased blood oxygen level dependent (BOLD) signal fluctuations in key reward and visual processing regions after moderate alcohol intake.
Area of Science:
- Neuroimaging
- Cognitive Neuroscience
- Neuropharmacology
Background:
- Resting-state functional magnetic resonance imaging (fMRI) measures spontaneous brain activity.
- This activity forms spatially distributed resting state networks (RSNs).
- Alcohol's acute effects on RSNs at low doses are not fully understood.
Purpose of the Study:
- To investigate changes in RSNs after acute alcohol ingestion.
- To assess effects at a blood alcohol concentration (BAC) of 0.5g/L.
- To examine these changes in young, healthy individuals.
Main Methods:
- Two fMRI sessions (pre- and post-alcohol) using a 1.5T scanner.
- Breathalyzer used to stabilize BAC at 0.5g/L.
- Probabilistic independent component analysis (PICA) and dual regression for data analysis.
Main Results:
- Significant reduction in BOLD signal fluctuations observed.
- Affected regions include sub-callosal cortex (SCC), left temporal fusiform cortex (TFC), and left inferior temporal gyrus (ITG).
- These regions are associated with reward and ventral visual processing.
Conclusions:
- Acute, moderate alcohol consumption alters resting-state brain connectivity.
- Alcohol selectively impacts brain regions involved in reward and visual processing.
- Findings contribute to understanding alcohol's neurobiological effects at sub-legal driving limits.
