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Communication through resonance in spiking neuronal networks
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2014 (English)In: PloS Computational Biology, ISSN 1553-734X, E-ISSN 1553-7358, Vol. 10, no 8, e1003811Article in journal (Refereed) Published
Abstract [en]

The cortex processes stimuli through a distributed network of specialized brain areas. This processing requires mechanisms that can route neuronal activity across weakly connected cortical regions. Routing models proposed thus far are either limited to propagation of spiking activity across strongly connected networks or require distinct mechanisms that create local oscillations and establish their coherence between distant cortical areas. Here, we propose a novel mechanism which explains how synchronous spiking activity propagates across weakly connected brain areas supported by oscillations. In our model, oscillatory activity unleashes network resonance that amplifies feeble synchronous signals and promotes their propagation along weak connections ("communication through resonance''). The emergence of coherent oscillations is a natural consequence of synchronous activity propagation and therefore the assumption of different mechanisms that create oscillations and provide coherence is not necessary. Moreover, the phase-locking of oscillations is a side effect of communication rather than its requirement. Finally, we show how the state of ongoing activity could affect the communication through resonance and propose that modulations of the ongoing activity state could influence information processing in distributed cortical networks.

Place, publisher, year, edition, pages
2014. Vol. 10, no 8, e1003811
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Neurosciences Bioinformatics (Computational Biology)
URN: urn:nbn:se:kth:diva-154859DOI: 10.1371/journal.pcbi.1003811ISI: 000341573600048OAI: diva2:758885

QC 20150410

Available from: 2014-10-28 Created: 2014-10-28 Last updated: 2015-04-10Bibliographically approved

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Kumar, Arvind
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