Investigating brain dynamics and their association with cognitive control in opioid use disorder using naturalistic and drug cue paradigms
Ye, J.; Mehta, S.; Peterson, H.; Ibrahim, A.; Saeed, G.; Linsky, S.; Kreinin, I.; Tsang, S.; Nwanaji-Enwerem, U.; Raso, A.; Arora, J.; Tokoglu, F.; Yip, S. W.; Hahn, C. A.; Lacadie, C.; Greene, A. S.; Constable, R. T.; Barry, D. T.; Redeker, N. S.; Yaggi, H.; Scheinost, D.
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ObjectivesOpioid use disorder (OUD) impacts millions of people worldwide. The prevalence and debilitating effects of OUD present a pressing need to understand its neural mechanisms to provide more targeted interventions. Prior studies have linked altered functioning in large-scale brain networks with clinical symptoms and outcomes in OUD. However, these investigations often do not consider how brain responses change over time. Time-varying brain network engagement can convey clinically relevant information not captured by static brain measures. MethodsWe investigated brain dynamic alterations in individuals with OUD by applying a new multivariate computational framework to movie-watching (i.e., naturalistic; N=76) and task-based (N=70) fMRI. We further probed the associations between cognitive control and brain dynamics during a separate drug cue paradigm in individuals with OUD. ResultsCompared to healthy controls (N=97), individuals with OUD showed decreased variability in the engagement of recurring brain states during movie-watching. We also found that worse cognitive control was linked to decreased variability during the rest period when no opioid-related stimuli were present. ConclusionsThese findings suggest that individuals with OUD may experience greater difficulty in effectively engaging brain networks in response to evolving internal or external demands. Such inflexibility may contribute to aberrant response inhibition and biased attention toward opioid-related stimuli, two hallmark characteristics of OUD. By incorporating temporal information, the current study introduces novel information about how brain dynamics are altered in individuals with OUD and their behavioral implications.
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