Journal article
Frontoparietal Activity Interacts With Task-Evoked Changes in Functional Connectivity
Cerebral cortex (New York, N.Y. 1991), Vol.29(2), pp.802-813
02/01/2019
DOI: 10.1093/cercor/bhy011
PMCID: PMC7199886
PMID: 29415156
Abstract
Flexible interactions between brain regions enable neural systems to adaptively transfer and process information. However, the neural substrates that regulate adaptive communications between brain regions are understudied. In this human fMRI study, we investigated this issue by tracking time-varying, task-evoked changes in functional connectivity between localized occipitotemporal regions while participants performed different tasks on the same visually presented stimuli. We found that functional connectivity between ventral temporal and the primary visual regions selectively increased during the processing of task-relevant information. Further, additional task demands selectively strengthen these targeted connectivity patterns. To identify candidate regions that contribute to this increase in inter-regional coupling, we regressed the task-specific time-varying connectivity strength between primary visual and occipitotemporal regions against voxel-wise activity patterns elsewhere in the brain. This allowed us to identify a set of frontal and parietal regions whose activity increased as a function of task-evoked functional connectivity. These results suggest that frontoparietal regions may provide top-down biasing signals to influence task-specific interactions between brain regions.
Details
- Title: Subtitle
- Frontoparietal Activity Interacts With Task-Evoked Changes in Functional Connectivity
- Creators
- Kai Hwang - Helen Wills Neuroscience Institute and Department of Psychology, University of California Berkeley, Berkeley, CA, USAJames M Shine - Brain and Mind Centre, The University of Sydney, Sydney, New South Wales, AustraliaMark D'Esposito - Helen Wills Neuroscience Institute and Department of Psychology, University of California Berkeley, Berkeley, CA, USA
- Resource Type
- Journal article
- Publication Details
- Cerebral cortex (New York, N.Y. 1991), Vol.29(2), pp.802-813
- Publisher
- United States
- DOI
- 10.1093/cercor/bhy011
- PMID
- 29415156
- PMCID
- PMC7199886
- ISSN
- 1460-2199
- eISSN
- 1460-2199
- Grant note
- R01 MH063901 / NIMH NIH HHS
- Language
- English
- Date published
- 02/01/2019
- Academic Unit
- Psychiatry; Psychological and Brain Sciences; Iowa Neuroscience Institute
- Record Identifier
- 9984002464702771
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