Discovering oscillatory interaction networks with M/EEG: Challenges and breakthroughs

Satu Palva*, J. Matias Palva

*Corresponding author for this work

Research output: Contribution to journalReview ArticleScientificpeer-review

210 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)219-230
Number of pages12
JournalTRENDS in Cognitive Sciences
Issue number4
Publication statusPublished - 1 Jan 2012
MoE publication typeA2 Review article in a scientific journal


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