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  A quantitative theory of gamma synchronization in macaque V1

Lowet, E., Roberts, M. J., Peter, A., Gips, B., & De Weerd, P. (2017). A quantitative theory of gamma synchronization in macaque V1. Elife, 6: e26642. doi:10.7554/eLife.26642.

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Genre: Zeitschriftenartikel

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Lowet_2017_AQuantitativeTheory.pdf (Verlagsversion), 4MB
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Lowet_2017_AQuantitativeTheory.pdf
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2017
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Copyright © 2017, Lowet et al.

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https://elifesciences.org/articles/26642 (Verlagsversion)
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 Urheber:
Lowet, Eric, Autor
Roberts, Mark J., Autor
Peter, Alina1, Autor
Gips, Bart, Autor
De Weerd, Peter, Autor
Affiliations:
1Ernst Strüngmann Institute (ESI) for Neuroscience in Cooperation with Max Planck Society, Max Planck Society, Deutschordenstr. 46, 60528 Frankfurt, DE, ou_2074314              

Inhalt

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Schlagwörter: Animals *Cortical Synchronization *Electroencephalography Phase Synchronization *Gamma Rhythm Macaca Models, Neurological Models, Theoretical Visual Cortex/*physiology *neuroscience *rhesus macaque *synchronization *visual cortex *weakly coupled oscillators
 Zusammenfassung: Gamma-band synchronization coordinates brief periods of excitability in oscillating neuronal populations to optimize information transmission during sensation and cognition. Commonly, a stable, shared frequency over time is considered a condition for functional neural synchronization. Here, we demonstrate the opposite: instantaneous frequency modulations are critical to regulate phase relations and synchronization. In monkey visual area V1, nearby local populations driven by different visual stimulation showed different gamma frequencies. When similar enough, these frequencies continually attracted and repulsed each other, which enabled preferred phase relations to be maintained in periods of minimized frequency difference. Crucially, the precise dynamics of frequencies and phases across a wide range of stimulus conditions was predicted from a physics theory that describes how weakly coupled oscillators influence each other's phase relations. Hence, the fundamental mathematical principle of synchronization through instantaneous frequency modulations applies to gamma in V1 and is likely generalizable to other brain regions and rhythms.

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 Datum: 2017-08-31
 Publikationsstatus: Online veröffentlicht
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 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.7554/eLife.26642
 Art des Abschluß: -

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Titel: Elife
  Alternativer Titel : eLife
Genre der Quelle: Zeitschrift
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Seiten: - Band / Heft: 6 Artikelnummer: e26642 Start- / Endseite: - Identifikator: ISBN: 2050-084X (Electronic)2050-084X (Linking)