Reimagining the Biopsychosocial Model: Transdiagnostic Factors to Precision Psychiatry

Area of Science:

• Neuroscience
• Psychiatry
• Addiction Research

Background:

• A previously established biopsychosocial model predicts comorbid psychiatric disorders using neuroimaging data.
• This study investigates a variant of the model using brain responses to alcohol cues to predict alcohol problems.

Purpose of the Study:

• To test if brain responses to alcohol cues, combined with externalizing behaviors and childhood trauma, predict future alcohol problems.
• To identify specific brain regions involved in this prediction.

Main Methods:

• Longitudinal assessment of 44 youths for externalizing behaviors (ages 10-16).
• fMRI scans and Childhood Trauma Questionnaire (CTQ) at age 18.
• Alcohol Use Disorders Identification Test (AUDIT) at age 25, analyzed with logistic regressions.

Main Results:

• High mesocorticolimbic responses to alcohol cues, high adolescent externalizing behaviors, and high CTQ scores predicted higher AUDIT scores at age 25.
• The ventral and associative striatum, cingulate cortex, and ventromedial prefrontal cortex were significant predictors.
• Models showed good-to-excellent classification performance (AUC 0.83-0.87).

Conclusions:

• A novel hierarchical model integrates transdiagnostic liability with precision psychiatry factors.
• Mesocorticolimbic reactivity to specific stimuli may influence psychopathology expression, including alcohol problems.