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Related Experiment Video

Updated: Jan 18, 2026

Disruption of Frontal Lobe Neural Synchrony During Cognitive Control by Alcohol Intoxication
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Resting-State Functional Connectivity and Alcohol Use Disorder: A Case-Control Study.

Mahmoud Elsayed1, Sabrina K Syan1, Kyla L Belisario1

  • 1Department of Psychiatry and Behavioural Neurosciences, McMaster University and Peter Boris Centre for Addictions Research, St. Joseph's Healthcare Hamilton, Hamilton, ON.

The Journal of Neuropsychiatry and Clinical Neurosciences
|September 11, 2025
PubMed
Summary

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Adults with alcohol use disorder show distinct brain connectivity patterns, linked to higher alcohol craving and negative emotions. These findings highlight unique neural markers for alcohol use disorder.

Area of Science:

  • Neuroscience
  • Psychiatry
  • Addiction Research

Background:

  • Alcohol use disorder (AUD) is a complex condition with significant public health implications.
  • Understanding the neural underpinnings of AUD is crucial for developing effective interventions.
  • Resting-state functional connectivity (rsFC) offers insights into intrinsic brain network organization.

Purpose of the Study:

  • To investigate differences in brain rsFC between adults with AUD and healthy controls.
  • To explore behavioral and psychological factors associated with these rsFC differences.

Main Methods:

  • A case-control study involving 140 adults (71 with AUD, 69 controls).
  • Resting-state functional MRI scans (9-minute duration) were acquired.
  • rsFC was analyzed using seed-based methods, alongside assessments of alcohol-reinforcing value, delay discounting, and internalizing psychopathology.
Keywords:
Alcohol Abuse and DependenceAlcohol Use DisorderAlcohol-Reinforcing ValueDelay Reward DiscountingInternalizing PsychopathologyResting-State Functional Connectivity

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Last Updated: Jan 18, 2026

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Main Results:

  • Significant rsFC differences were observed in regions including the inferior frontal gyrus, lingual gyrus, nucleus accumbens, and supplementary motor cortex.
  • Connectivity was generally higher in the AUD group, except for the supplementary motor cortex.
  • rsFC differences indirectly related to alcohol-reinforcing value and internalizing psychopathology, but not delay discounting.

Conclusions:

  • This study provides initial evidence for distinct rsFC patterns in AUD.
  • These patterns suggest heightened incentive salience for alcohol and increased negative reinforcement motivation in individuals with AUD.