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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Electroencephalography Source Functional Connectivity Reveals Abnormal High-Frequency Communication Among Large-Scale Functional Networks in Depression
Alexis E. Whitton,Stephanie Deccy,Manon L. Ironside,Poornima Kumar,Poornima Kumar,Miranda L. Beltzer,Diego A. Pizzagalli,Diego A. Pizzagalli +7 more
TL;DR: Elevations in high-frequency DMN-FPN connectivity may be a neural marker linked to a more recurrent illness course and extend the understanding of the neurophysiological basis of abnormal resting-state functional connectivity in MDD.
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Synchronization measurement of multiple neuronal populations.
TL;DR: A method, based on equal-time correlation, correlation matrix analysis and surrogate resampling, that is able to quantify and describe properties of synchronization of population neuronal activity recorded simultaneously from multiple sites is developed.
Journal ArticleDOI
Hippocampal sharp-wave ripples in awake mice are entrained by respiration
TL;DR: It is shown that the timing of SWR events is modulated by the respiratory cycle, with a significantly increased probability of SWRs during the early expiration phase, which represents a possible neuronal mechanism for a direct influence of the respiratory Cycle on memory function.
Journal ArticleDOI
Prominence of delta oscillatory rhythms in the motor cortex and their relevance for auditory and speech perception.
TL;DR: Evidence that motor delta oscillations shape the dynamics of motor behaviors and sensorimotor processes, in particular during auditory perception is reviewed, providing a contextual temporal frame to optimize the parsing and processing of slow linguistic information.
Journal ArticleDOI
High-frequency oscillations in human and monkey neocortex during the wake-sleep cycle.
Michel Le Van Quyen,Lyle Muller,Bartosz Telenczuk,Eric Halgren,Sydney S. Cash,Nicholas G. Hatsopoulos,Nima Dehghani,Nima Dehghani,Alain Destexhe +8 more
TL;DR: It is shown in humans that in comparison to excitatory cells, inhibitory neurons have a stronger spiking activity during γ oscillations in the wake–sleep cycle, which suggests that inhibition-driven β- and γ-oscillations may contribute to the reactivation of information during sleep through orchestrating highly coherentSpiking activity patterns.
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