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Title

Far in space and yet in synchrony: neuronal mechanisms for zero-lag long-range synchronization

AuthorsVicente, Raúl; Gollo, Leonardo L.; Mirasso, Claudio R. ; Fischer, Ingo ; Pipa, Gordon
Issue Date26-Aug-2008
PublisherSpringer
CitationSpringer Series in Computational Neuroscience 3: 143-167 (2009)
SeriesBiomedical and Life Sciences
AbstractDistant neuronal populations are observed to synchronize their activity patterns at zero-lag during certain stages of cognitive acts. This chapter provides an overview of the problem of large-scale synchrony and some of the solutions that have been proposed for attaining long-range coherence in the nervous system despite long conduction delays. We also review in detail the synchronizing properties of a canonical neuronal microcircuit that naturally enhances the isochronous discharge of remote neuronal resources. The basic idea behind this mechanism is that when two neuronal populations relay their activities onto a third mediating population, the redistribution of the dynamics performed by the latter leads to a self-organized and lag-free synchronization among the pools of neurons being relayed. Exploring the physiological relevance of this mechanism, we discuss the role of associative thalamic nuclei and their bidirectional interaction with the neocortex as a relevant physiological structure in which the network module under study is densely embedded. These results are further supported by the recently proposed role of thalamocortical interactions as a substrate for the trans-areal cortical coordination.
Description25 pages, 6 figures.-- En: Coherent Behavior in Neuronal Networks (Eds. K. Josic et al.)
Publisher version (URL)http://dx.doi.org/10.1007/978-1-4419-0389-1_8
URIhttp://hdl.handle.net/10261/18717
DOI10.1007/978-1-4419-0389-1_8
ISBN978-1-4419-0388-4 (Print)
978-1-4419-0389-1 (Online)
Appears in Collections:(IFISC) Libros y partes de libros
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