The human brain is intrinsically organized into dynamic, anticorrelated functional networks
Washington University in St. Louis
Abstract
During performance of attention-demanding cognitive tasks, certain regions of the brain routinely increase activity, whereas others routinely decrease activity. In this study, we investigate the extent to which this task-related dichotomy is represented intrinsically in the resting human brain through examination of spontaneous fluctuations in the functional MRI blood oxygen level-dependent signal. We identify two diametrically opposed, widely distributed brain networks on the basis of both spontaneous correlations within each network and anticorrelations between networks. One network consists of regions routinely exhibiting task-related activations and the other of regions routinely exhibiting task-related…
Citation impact
- FWCI
- 44.40
- Percentile
- 100%
- References
- 51
Authors
6Topics & keywords
- Context (archaeology)
- Neuroscience
- Dynamic functional connectivity
- Task (project management)
- Human brain
- Brain function
- Brain activity and meditation
- Cognition