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Factors associated with cognitive flexibility in people with opioid-use disorder: a pilot study
Paul S Regier1, Thais Costa Macedo de Arruda2, Laura Sinko3
1Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States.
Frontiers in Psychiatry
|January 3, 2025
Summary
Individuals with opioid use disorder (OUD) show impaired cognitive flexibility and working memory. Higher impulsiveness and social impairment significantly contribute to these cognitive deficits in OUD, impacting relapse risk.
Area of Science:
- Neuroscience
- Psychology
- Addiction Medicine
Background:
- Substance use disorders are characterized by a lack of behavioral flexibility.
- Cognitive impairments, including learning, memory, and executive function, may underlie this inflexibility.
- Factors like mental health, personality, and prior adversity can influence cognitive function in individuals with substance use disorders, leading to mixed research findings.
Purpose of the Study:
- To identify factors influencing neurocognitive variations in individuals with opioid use disorder (OUD).
- To investigate potential deficits in neurocognitive domains in OUD compared to controls.
- To explore the relationship between cognitive difficulties and contributing factors like impulsiveness, social function, depressive symptoms, and childhood adversity.
Main Methods:
- A pilot study comparing 32 individuals with OUD (receiving medication) and 15 non-substance using controls (NSC).
- Assessment of addiction and relapse risk factors using questionnaires (impulsiveness, social function, depressive symptoms, childhood adversity).
- Measurement of neurocognitive performance using the Penn Computerized Neurocognitive Battery (P-CNB), assessing attention, working memory, episodic memory, cognitive flexibility, and complex cognition.
Main Results:
- OUD participants demonstrated significantly lower performance on the conditional exclusion task (CET) and the n-Back task (NBT) compared to NSCs.
- Higher impulsiveness and greater social impairment were significantly correlated with decreased CET performance in the OUD group.
- No significant correlation was found between impulsiveness/social impairment and n-Back task performance.
Conclusions:
- Individuals with OUD exhibit impairments in working memory and cognitive flexibility.
- Impulsiveness and social function are identified as key factors contributing to cognitive flexibility impairments in OUD.
- Findings offer insights for future research and interventions aimed at reducing relapse risk in OUD.
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