Relating resting-state fMRI and EEG whole-brain connectomes across frequency bands.

ABSTRACT: Whole brain functional connectomes hold promise for understanding human brain activity across a range of cognitive, developmental and pathological states. So called resting-state (rs) functional MRI studies have contributed to the brain being considered at a macroscopic scale as a set of interacting regions. Interactions are defined as correlation-based signal measurements driven by blood oxygenation level dependent (BOLD) contrast. Understanding the neurophysiological basis of these measurements is important in conveying useful information about brain function. Local coupling between BOLD fMRI and neurophysiological measurements is relatively well defined, with evidence that gamma (range) frequency EEG signals are the closest correlate of BOLD fMRI changes during cognitive processing. How

SUBMITTER: Deligianni F 

PROVIDER: S-EPMC4148011 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature