Investigating the electrophysiological basis of resting state networks using magnetoencephalography.

ABSTRACT: In recent years the study of resting state brain networks (RSNs) has become an important area of neuroimaging. The majority of studies have used functional magnetic resonance imaging (fMRI) to measure temporal correlation between blood-oxygenation-level-dependent (BOLD) signals from different brain areas. However, BOLD is an indirect measure related to hemodynamics, and the electrophysiological basis of connectivity between spatially separate network nodes cannot be comprehensively assessed using this technique. In this paper we describe a means to characterize resting state brain networks independently using magnetoencephalography (MEG), a neuroimaging modality that bypasses the hemodynamic response and measures the magnetic fields associated with electrophysiological brain activity. The

SUBMITTER: Brookes MJ 

PROVIDER: S-EPMC3189080 | biostudies-literature | 2011 Oct

REPOSITORIES: biostudies-literature