Sophia H. Blyth, Lauren D. Hill, Anna Huang, Neil D. Woodward, Baxter P. Rogers, Simon Vandekar, Heather Burrell Ward
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引用次数: 0
Abstract
Background
Adolescent substance use is associated with increased risk of suicide, overdose, and executive dysfunction. Alcohol and marijuana are the two most-used substances among young people. Substance use is associated with dysfunctional resting-state network connectivity between the default mode network (DMN), executive control network (ECN), and salience network (SN) and executive dysfunction. There is limited research on triple-network connectivity (DMN, ECN, SN) in adolescents who use substances.
Methods
In typically developing youth from the Philadelphia Neurodevelopmental Cohort (PNC), regression models were used to examine relationships between alcohol and marijuana use and triple-network connectivity (n = 520), while adjusting for age, sex, maternal education, and head motion. In individuals with neurocognitive and substance use data (n = 4197), regression models were used to examine relationships with executive control.
Results
Alcohol use was not associated with any connectivity measures after false discovery rate correction. Higher marijuana use was associated with higher DMN-ECN connectivity (F2,507 = 5.08, p = .0066, q = .039). Higher alcohol use was associated with better working memory (p = .020), mental flexibility (p < .0001), attention (p = .019), and executive efficiency (p = .0015) and accuracy (p = .00044), which may have been due to other socioeconomic factors. Marijuana use was not associated with neurocognitive performance.
Conclusions
In typically developing youth, marijuana use was associated with DMN-ECN connectivity, while alcohol use was associated with neurocognitive performance. Future research should use interventions targeting the DMN, ECN, and SN to interrogate relationships between connectivity, cognitive performance, and substance use.
期刊介绍:
Biological Psychiatry: Cognitive Neuroscience and Neuroimaging is an official journal of the Society for Biological Psychiatry, whose purpose is to promote excellence in scientific research and education in fields that investigate the nature, causes, mechanisms, and treatments of disorders of thought, emotion, or behavior. In accord with this mission, this peer-reviewed, rapid-publication, international journal focuses on studies using the tools and constructs of cognitive neuroscience, including the full range of non-invasive neuroimaging and human extra- and intracranial physiological recording methodologies. It publishes both basic and clinical studies, including those that incorporate genetic data, pharmacological challenges, and computational modeling approaches. The journal publishes novel results of original research which represent an important new lead or significant impact on the field. Reviews and commentaries that focus on topics of current research and interest are also encouraged.