Resting state functional connectivity patterns associate with alcohol use disorder characteristics: Insights from the...

Area of Science:

• Neuroscience
• Psychiatry
• Addiction Research

Background:

• Prolonged alcohol use leads to neuroadaptations associated with severe and treatment-resistant Alcohol Use Disorder (AUD).
• Understanding the brain's functional connectivity patterns is crucial for characterizing AUD and developing effective treatments.

Purpose of the Study:

• To identify functional connectivity brain patterns associated with AUD-related characteristics in heavy alcohol users.
• To investigate the relationship between resting-state functional connectivity (rsFC) of key brain networks and various AUD indicators.

Main Methods:

• Utilized a multivariate data-driven approach (regularized partial least squares - rPLS) combined with the triple network model (TNM).
• Analyzed rsFC data from 55 adults with heavy alcohol use, correlating it with self-reported alcohol use, alcohol seeking, urgency, and sociodemographic factors.

Main Results:

• Identified three key associations: 1) drinking/age-related communication between Salience Network (SN) and Frontoparietal (FPN)/Default Mode (DMN) networks. 2) AUD family history/urgency anticorrelations between SN and FPN. 3) Alcohol seeking/sex-associated interactions between SN and DMN.
• These findings integrate existing literature on functional connectivity and AUD factors.

Conclusions:

• Discovered specific neural mechanisms and brain regions associated with AUD characteristics.
• These identified brain patterns and regions represent potential therapeutic targets for AUD in both clinical and preclinical settings.