Neuronal Oscillations in Cortical Networks
György Buzsáki,Andreas Draguhn +1 more
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TLDR
Recent findings indicate that network oscillations bias input selection, temporally link neurons into assemblies, and facilitate synaptic plasticity, mechanisms that cooperatively support temporal representation and long-term consolidation of information.Abstract:
Clocks tick, bridges and skyscrapers vibrate, neuronal networks oscillate. Are neuronal oscillations an inevitable by-product, similar to bridge vibrations, or an essential part of the brain’s design? Mammalian cortical neurons form behavior-dependent oscillating networks of various sizes, which span five orders of magnitude in frequency. These oscillations are phylogenetically preserved, suggesting that they are functionally relevant. Recent findings indicate that network oscillations bias input selection, temporally link neurons into assemblies, and facilitate synaptic plasticity, mechanisms that cooperatively support temporal representation and long-term consolidation of information.read more
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SPoC: A novel framework for relating the amplitude of neuronal oscillations to behaviorally relevant parameters
Sven Dähne,Frank C. Meinecke,Stefan Haufe,Johannes Höhne,Michael Tangermann,Klaus-Robert Müller,Vadim V. Nikulin +6 more
TL;DR: Taking into account the results of the simulations and real EEG recordings, SPoC represents an adequate approach for the optimal extraction of neuronal components showing coupling of power with continuously changing behaviorally relevant parameters.
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Temporal delays among place cells determine the frequency of population theta oscillations in the hippocampus
Caroline Geisler,Kamran Diba,Eva Pastalkova,Kenji Mizuseki,Sébastien Royer,Sébastien Royer,György Buzsáki +6 more
TL;DR: The results suggest that the faster-than-theta oscillations of pyramidal cells are inherent and that phase precession is a result of the coordinated activity of temporally shifted cell assemblies, relative to the population activity, reflected by the LFP.
Journal ArticleDOI
Graph analysis of EEG resting state functional networks in dyslexic readers
G. Fraga González,M. J. W. van der Molen,Gojko Žarić,Milene Bonte,Jurgen Tijms,Leo Blomert,Cornelis J. Stam,M.W. van der Molen +7 more
TL;DR: Group differences in the theta band for two graph metrics suggest reduced network integration and communication between network nodes in dyslexics compared to controls, adding to the growing body literature suggesting compromised networks rather than specific dysfunctional brain regions in Dyslexia.
Journal ArticleDOI
Emergence of Persistent Networks in Long-Term Intracranial EEG Recordings
TL;DR: It is suggested that a metastable, frequency-band-dependent scaffold of brain connectivity exists from which transient activity emerges and recedes, and that these structures are robust, emerging from brief time intervals regardless of cognitive state.
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Ketamine alters oscillatory coupling in the hippocampus
Fabio Viegas Caixeta,Alianda Maira Cornélio,Robson Scheffer-Teixeira,Sidarta Ribeiro,Adriano B. L. Tort +4 more
TL;DR: It is demonstrated that ketamine alters network interactions that underlie cognitively relevant theta-gamma coupling in the hippocampus of awake rats upon NMDA receptor blockade by ketamine, a pharmacological model of schizophrenia.
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