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• W4313596773 endingPage "119866" @default.
• W4313596773 startingPage "119866" @default.
• W4313596773 abstract "While much of motor behavior is automatic, intentional action is necessary for the selection and initiation of controlled motor acts and is thus an essential part of goal-directed behavior. Neuroimaging studies have shown that self-generated action implicates several dorsal and ventral frontoparietal areas. However, knowledge of the functional coupling between these brain regions during intentional action remains limited. We here studied brain activations and functional connectivity (FC) of thirty right-handed healthy participants performing a finger pressing task instructed to use a specific finger (externally-triggered action) or to select one of four fingers randomly (internally-generated action). Participants performed the task in alternating order either with their dominant right hand or the left hand. Consistent with previous studies, we observed stronger involvement of posterior parietal cortex and premotor regions when contrasting internally-generated with externally-triggered action. Interestingly, this contrast also revealed significant engagement of medial occipitotemporal regions including the left lingual and right fusiform gyrus. Task-based FC analysis identified increased functional coupling among frontoparietal regions as well as increased and decreased coupling between occipitotemporal regions, thus differentiating between two segregated networks. When comparing results of the dominant and nondominant hand we found less activation, but stronger connectivity for the former, suggesting increased neural efficiency when participants use their dominant hand. Taken together, our results reveal that two segregated networks that encompass the frontoparietal and occipitotemporal cortex contribute independently to intentional action." @default.
• W4313596773 created "2023-01-06" @default.
• W4313596773 creator A5010529909 @default.
• W4313596773 creator A5021401398 @default.
• W4313596773 creator A5049887876 @default.
• W4313596773 date "2023-03-01" @default.
• W4313596773 modified "2023-10-09" @default.
• W4313596773 title "Task-based functional connectivity identifies two segregated networks underlying intentional action" @default.
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• W4313596773 doi "https://doi.org/10.1016/j.neuroimage.2023.119866" @default.
• W4313596773 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36610680" @default.
• W4313596773 hasPublicationYear "2023" @default.
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• W4313596773 citedByCount "2" @default.

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