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  Interhemispheric phase synchrony and amplitude correlation of spontaneous beta oscillations in human subjects: A magnetoencephalographic study

Nikulin, V. V., Linkenkaer-Hansen, K., Huttunen, J., & Ilmoniemi, R. J. (2001). Interhemispheric phase synchrony and amplitude correlation of spontaneous beta oscillations in human subjects: A magnetoencephalographic study. NeuroReport, 12(11), 2487-2491.

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Nikulin, Vadim V.1, Author              
Linkenkaer-Hansen, Klaus, Author
Huttunen, Juha, Author
Ilmoniemi, Risto J., Author
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1External Organizations, ou_persistent22              

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 Abstract: Interhemispheric phase synchrony and amplitude correlation of beta oscillations were studied with MEG in a resting condition. The left and right hemisphere beta oscillations exhibited phase-locking with a phase-lag near zero degrees. The index of synchronization was strongest when these oscillations had large amplitude. Functionally, we interpret the phase synchrony on the basis of bilaterality of movement organization. A positive interhemispheric correlation was also found for the amplitude of spontaneous beta oscillations over long time intervals (> 1 s). The low-frequency correlation of spontaneous rhythmic activity may be the source of the low-frequency correlations of the hemodynamic responses in homologous areas that have been reported previously and have been interpreted as functional connectivity between these areas.

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Language(s): eng - English
 Dates: 2001-08-08
 Publication Status: Published in print
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Title: NeuroReport
Source Genre: Journal
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Publ. Info: Oxford, UK : Rapid Communications of Oxford Ltd.
Pages: - Volume / Issue: 12 (11) Sequence Number: - Start / End Page: 2487 - 2491 Identifier: ISSN: 0959-4965
CoNE: https://pure.mpg.de/cone/journals/resource/954925578070