Discovering oscillatory interaction networks with M/EEG: challenges and breakthroughs.

Abstract:

:The systems-level neuronal mechanisms that coordinate temporally, anatomically and functionally distributed neuronal activity into coherent cognitive operations in the human brain have remained poorly understood. Synchronization of neuronal oscillations may regulate network communication and could thus serve as such a mechanism. Evidence for this hypothesis, however, was until recently sparse, as methodological challenges limit the investigation of interareal interactions with non-invasive magneto- and electroencephalography (M/EEG) recordings. Nevertheless, recent advances in M/EEG source reconstruction and clustering methods support complete phase-interaction mappings that are essential for uncovering the large-scale neuronal assemblies and their functional roles. These data show that synchronization is a robust and behaviorally significant phenomenon in task-relevant cortical networks and could hence bind distributed neuronal processing to coherent cognitive states.

journal_name

Trends Cogn Sci

authors

Palva S,Palva JM

doi

10.1016/j.tics.2012.02.004

subject

Has Abstract

pub_date

2012-04-01 00:00:00

pages

219-30

issue

4

eissn

1364-6613

issn

1879-307X

pii

S1364-6613(12)00047-2

journal_volume

16

pub_type

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