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• W3215352398 abstract "Behavioral traits are rarely considered in task-evoked functional magnetic resonance imaging (MRI) studies, yet these traits can affect how an individual engages with the task, and thus lead to heterogeneity in task-evoked brain responses. We aimed to investigate whether interindividual variation in behavior associates with the accuracy of predicting task-evoked changes in the dynamics of functional brain connectivity measured with functional MRI. We developed a novel method called multi-timepoint pattern analysis (MTPA), in which binary logistic regression classifiers were trained to distinguish rest from each of 7 tasks (i.e., social cognition, working memory, language, relational, motor, gambling, emotion) based on functional connectivity dynamics measured in 1,000 healthy adults. We found that connectivity dynamics for multiple pairs of large-scale networks enabled individual classification between task and rest with accuracies exceeding 70%, with the most discriminatory connections relatively unique to each task. Crucially, interindividual variation in classification accuracy significantly associated with several behavioral, cognition and task performance measures. Classification between task and rest was generally more accurate for individuals with higher intelligence and task performance. Additionally, for some of the tasks, classification accuracy improved with lower perceived stress, lower aggression, higher alertness, and greater endurance. We conclude that heterogeneous dynamic adaptations of functional brain networks to changing cognitive demands can be reliably captured as linearly separable patterns by MTPA. Future studies should account for interindividual variation in behavior when investigating context-dependent dynamic functional connectivity." @default.
• W3215352398 created "2021-12-06" @default.
• W3215352398 creator A5031170774 @default.
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• W3215352398 date "2021-12-03" @default.
• W3215352398 modified "2023-09-29" @default.
• W3215352398 title "<scp>Multi‐timepoint</scp> pattern analysis: Influence of personality and behavior on decoding context‐dependent brain connectivity dynamics" @default.
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• W3215352398 doi "https://doi.org/10.1002/hbm.25732" @default.
• W3215352398 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34859934" @default.
• W3215352398 hasPublicationYear "2021" @default.
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