Magnetoencephalography in the study of brain dynamics.

Magnetoencephalography in the study of brain dynamics.
Funct Neurol. 2014 Oct-Dec;29(4):241-253
Authors: Pizzella V, Marzetti L, Della Penna S, De Pasquale F, Zappasodi F, Romani GL
Abstract
To progress toward understanding of the mechanisms underlying the functional organization of the human brain, either a bottom-up or a top-down approach may be adopted. The former starts from the study of the detailed functioning of a small number of neuronal assemblies, while the latter tries to decode brain functioning by considering the brain as a whole. This review discusses the top-down approach and the use of magnetoencephalography (MEG) to describe global brain properties. The main idea behind this approach is that the concurrence of several areas is required for the brain to instantiate a specific behavior/functioning. A central issue is therefore the study of brain functional connectivity and the concept of brain networks as ensembles of distant brain areas that preferentially exchange information. Importantly, the human brain is a dynamic device, and MEG is ideally suited to investigate phenomena on behaviorally relevant timescales, also offering the possibility of capturing behaviorally-related brain connectivity dynamics.
PMID: 25764254 [PubMed - as supplied by publisher]

Source: Functional Neurology - March 13, 2015 Category: Neurology Tags: Funct Neurol Source Type: research