Results 21 to 30 of about 36,242 (250)

Gamma rhythm communication between entorhinal cortex and dentate gyrus neuronal assemblies [PDF]

Science, 2021
Antonio Fernández-Ruiz, Azahara Oliva, Florbela Rocha-Almeida   +2 more
exaly   +2 more sources

Duration analysis using matching pursuit algorithm reveals longer bouts of gamma rhythm.

J Neurophysiol, 2018
The gamma rhythm (30-80 Hz), often associated with high-level cortical functions, is believed to provide a temporal reference frame for spiking activity, for which it should have a stable center frequency and linear phase for an extended duration ...
Chandran Ks S, Seelamantula CS, Ray S.
europepmc   +3 more sources

Phase-locked closed-loop ultrasound stimulation modulates theta and gamma rhythms in the mouse hippocampus

Frontiers in Neuroscience, 2022
Previous studies have demonstrated that open-loop transcranial ultrasound stimulation (TUS) can modulate theta and gamma rhythms of the local field potentials (LFPs) in the mouse hippocampus; however, the manner in which closed-loop TUS with different ...
Zhenyu Xie, Zhenyu Xie, Jiaqing Yan, Shuxun Dong, Shuxun Dong, Hui Ji, Yi Yuan, Yi Yuan   +7 more
doaj   +1 more source

Ablation of p75NTR signaling strengthens gamma–theta rhythm interaction and counteracts Aβ-induced degradation of neuronal dynamics in mouse hippocampus in vitro

Translational Psychiatry, 2021
Gamma and theta brain rhythms play important roles in cognition and their interaction can affect gamma oscillation features. Hippocampal theta oscillations depend on cholinergic and GABAergic input from the medial septum-diagonal band of Broca.
Yuniesky Andrade-Talavera, Hugo Balleza-Tapia, Pablo Dolz-Gaitón, Gefei Chen, Jan Johansson, André Fisahn   +5 more
doaj   +1 more source

Auditory Steady-State Responses in Schizophrenia: An Updated Meta-Analysis

Brain Sciences, 2023
This meta-analysis investigates auditory steady-state responses (ASSRs) as potential biomarkers of schizophrenia, focusing on previously unexplored clinical populations, frequencies, and variables. We examined 37 studies, encompassing a diverse cohort of
Inès Zouaoui, Alexandre Dumais, Marc E. Lavoie, Stéphane Potvin   +3 more
doaj   +1 more source

Analysis of electroencephalography brain rhythms in the reading process

Einstein (São Paulo), 2020
Objective: To verify if, by three distinct quantifiers, the measured electroencephalographic signal at rest is different from the signal measured during a word reading situation, especially considering the faster rhythms, gamma and high-gamma, as it ...
Camila Davi Ramos, Izabella Nonato Oliveira Lima, Amanda Luiza Rodrigues, Kaliny Alice Carvalho de Oliveira Magalhães, Aurélia Aparecida de Araújo Rodrigues, João-Batista Destro-Filho   +5 more
doaj   +2 more sources

Interacting rhythms enhance sensitivity of target detection in a fronto-parietal computational model of visual attention

eLife, 2023
Even during sustained attention, enhanced processing of attended stimuli waxes and wanes rhythmically, with periods of enhanced and relatively diminished visual processing (and subsequent target detection) alternating at 4 or 8 Hz in a sustained visual ...
Amélie Aussel, Ian C Fiebelkorn, Sabine Kastner, Nancy J Kopell, Benjamin Rafael Pittman-Polletta   +4 more
doaj   +1 more source

A computational study on altered theta-gamma coupling during learning and phase coding [PDF]

, 2012
There is considerable interest in the role of coupling between theta and gamma oscillations in the brain in the context of learning and memory. Here we have used a neural network model which is capable of producing coupling of theta phase to gamma ...
Yang Zhan, Haifu Zhou (157350), Zhang Xuejuan, Kendrick Keith M., Zhan Yang, Kendrick, Keith M., Xuejuan Zhang, Zhang, Xuejuan, Zhou Haifu, Jianfeng Feng (48703), Xuejuan Zhang (157336), Zhan, Yang, Keith M. Kendrick (157342), Zhou, Haifu, Haifu Zhou, Yang Zhan (157356), Feng, Jianfeng, Jianfeng Feng, Keith M Kendrick, Feng Jianfeng   +19 more
core   +1 more source

Learning alters theta amplitude, theta-gamma coupling and neuronal synchronization in inferotemporal cortex [PDF]

, 2011
Background: How oscillatory brain rhythms alone, or in combination, influence cortical information processing to support learning has yet to be fully established.
Zhang Xuejuan, Yang Zhan, Zhan Yang, Nicol, Alister U., Fischer Hanno, Kendrick, Keith M., Xuejuan Zhang, Zhang, Xuejuan, Hanno Fischer, Nicol Alister U, Fischer, Hanno, Zhan, Yang, Alister U Nicol, Feng, Jianfeng, Jianfeng Feng, Keith M Kendrick, Kendrick Keith M, Feng Jianfeng   +17 more
core   +1 more source

Decision time, slow inhibition, and theta rhythm [PDF]

, 2010
In this paper, we examine decision making in a spiking neuronal network and show that longer time constants for the inhibitory neurons can decrease the reaction times and produce theta rhythm.We analyze the mechanism and find that the spontaneous firing
Smerieri, Anteo, Edmund T. Rolls, Feng, Jianfeng, Jianfeng Feng, Rolls, Edmund T., Anteo Smerieri   +5 more
core   +1 more source