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Malleability of gamma rhythms enhances population-level correlations
Journal of Computational Neuroscience, 2021An important problem in systems neuroscience is to understand how information is communicated among brain regions, and it has been proposed that communication is mediated by neuronal oscillations, such as rhythms in the gamma band. We sought to investigate this idea by using a network model with two components, a source (sending) and a target ...
Sonica Saraf, Lai-Sang Young
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Modeling dopaminergic modulation of clustered gamma rhythms
Communications in Nonlinear Science and Numerical Simulation, 2020zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zakharov, Denis +2 more
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Cardiovascular rhythm effects of gamma recombinant DNA interferon
Investigational New Drugs, 1989Twenty patients receiving recombinant DNA gamma interferon were prospectively assessed for cardiac rhythm disturbances. All patients were evaluated with baseline electrocardiograms, pretreatment ambulatory monitoring and ejection fraction determination. Each patient was then monitored continuously during drug administration.
G G, Friess, T D, Brown, R C, Wrenn
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Feedback models of gamma rhythms
Trends in Neurosciences, 1996Jefferys et al.1 in the May issue of TINS reviewed the use of neuronal network analysis for modeling oscillations in the gamma range, particularly to distinguish between intrinsic oscillations from neurons that entrain others and interneuronal oscillations that arise from feedback between excitatory and inhibitory populations. They write (Ref.
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Neural Computation, 2017
The communication-through-coherence (CTC) hypothesis states that a sending group of neurons will have a particularly strong effect on a receiving group if both groups oscillate in a phase-locked (“coherent”) manner (Fries, 2005 , 2015 ). Here, we consider a situation with two visual stimuli, one in the focus of attention and the other distracting ...
Burwick, Thomas, Bouras, Alexandros
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The communication-through-coherence (CTC) hypothesis states that a sending group of neurons will have a particularly strong effect on a receiving group if both groups oscillate in a phase-locked (“coherent”) manner (Fries, 2005 , 2015 ). Here, we consider a situation with two visual stimuli, one in the focus of attention and the other distracting ...
Burwick, Thomas, Bouras, Alexandros
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New Roles for the Gamma Rhythm: Population Tuning and Preprocessing for the Beta Rhythm
Journal of Computational Neuroscience, 2003Gamma (30-80 Hz) and beta (12-30 Hz) oscillations such as those displayed by in vitro hippocampal (CA1) slice preparations and by in vivo neocortical EEGs often occur successively, with a spontaneous transition between them. In the gamma rhythm, pyramidal cells fire together with the interneurons, while in the beta rhythm, pyramidal cells fire on a ...
Mette S, Olufsen +3 more
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Gamma rhythms are not integral to EEG spindle phenomena
Clinical Neurophysiology, 2005Gamma rhythms (30-100 Hz) have been shown to be associated with spindling activity induced by picrotoxin. To determine if gamma power is unique to picrotoxin spindles or is an integral part of physiological and pathological spindling activity we analysed and compared the strength and brain distribution of gamma EEG power during 4 spindling activities ...
Mackenzie, Lorraine +2 more
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A Toolkit for a Gamma Rhythm Processing and Analysis
2021 5th Scientific School Dynamics of Complex Networks and their Applications (DCNA), 2021Neural oscillations are electrical activities of the brain measurable at different frequencies. This paper studies the interaction between the fast and slow processes in the brain. We analyze electrocorticogram (ECoG) signals from the simple Wistar rats with developed tools application: low-pass and band- pass zero-phase filters to separate slow and ...
Evgeniia S. Sevasteeva +1 more
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Postnatal Development of Rat Hippocampal Gamma Rhythm In Vivo
Journal of Neurophysiology, 2002Network oscillations in the gamma-frequency band (20–100 Hz) may have a central role in the timing and coordination of neural activity in the adult brain, yet their appearance in the course of development has remained unexplored. Moreover, electroencephalogram (EEG)-based classification of the vigilance states [active sleep (AS), quiet sleep (QS), or ...
Hannele, Lahtinen +5 more
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Gamma Rhythms and Communication
2017During a PING oscillation, the pyramidal cells are subject to inhibition of oscillating strength. Inputs to the pyramidal cells should be more effective at times when inhibition is weak than when it is strong. Pascal Fries [56] has suggested that the brain may make use of this fact, making neuronal communication more or less effective by shifting the ...
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