Cognitive Dysfunction in the Addictions (CDiA): A Neuron to Neighbourhood Collaborative Research Program on Executive...

Area of Science:

• Neuroscience
• Psychiatry
• Public Health

Background:

• Substance use disorders (SUDs) are a major global health issue.
• Executive functions (EFs) are critical in addiction models, but their role in SUDs requires further study.
• Gaps exist in understanding EFs' relationship to neural circuits, biomarkers, disorder heterogeneity, and functional ability in SUDs.

Purpose of the Study:

• To introduce the Cognitive Dysfunction in the Addictions (CDiA) program, an integrative research initiative.
• To address knowledge gaps in EFs within SUDs.
• To facilitate research discoveries for enhanced treatments for individuals with SUDs.

Main Methods:

• The CDiA Program includes seven interdisciplinary projects with a prospective study of 400 adults (18-60) seeking addiction treatment over one year.
• Projects investigate SUDs, brain circuits, blood biomarkers, EFs (inhibition, working memory, set-shifting), and functional outcomes.
• Interventions (rTMS, preclinical pharmacology), healthcare utilization, and whole-person modeling with machine learning are employed.

Main Results:

• The program integrates diverse data to uncover links between EFs, SUD severity, and functional recovery.
• Findings emerge from clinical, preclinical, health service, and whole-person modeling investigations.
• The research aims to enhance understanding of cognitive dysfunction in addiction.

Conclusions:

• The CDiA program is expected to advance scientific understanding of EFs in SUDs.
• Discoveries will inform future clinical care and treatment strategies for individuals with SUDs.
• This initiative bridges multiple scientific domains to improve outcomes for those with addiction.