Results 71 to 80 of about 753,295 (290)

Ketamine Modulates Theta and Gamma Oscillations

Journal of Cognitive Neuroscience, 2010
Abstract Ketamine, an N-methyl-d-aspartate (NMDA) receptor glutamatergic antagonist, has been studied as a model of schizophrenia when applied in subanesthetic doses. In EEG studies, ketamine affects sensory gating and alters the oscillatory characteristics of neuronal signals in a complex manner.
Maciej T. Lazarewicz, Richard S. Ehrlichman, Christina R. Maxwell, Michael J. Gandal, Leif H. Finkel, Steven J. Siegel   +5 more
openaire   +4 more sources

Cracking the code of oscillatory activity [PDF]

, 2011
Neural oscillations are ubiquitous measurements of cognitive processes and dynamic routing and gating of information. The fundamental and so far unresolved problem for neuroscience remains to understand how oscillatory activity in the brain codes ...
Gross Joachim, Philippe G. Schyns, Gregor Thut, Schyns Philippe G., Joachim Gross, Thut, G., Gross, J., Thut Gregor, Schyns, P.G., Philippe G Schyns   +9 more
core   +2 more sources

Hippocampal deletion of BDNF gene attenuates gamma oscillations in area CA1 by up-regulating 5-HT3 receptor. [PDF]

PLoS ONE, 2011
Pyramidal neurons in the hippocampal area CA3 express high levels of BDNF, but how this BDNF contributes to oscillatory properties of hippocampus is unknown.Here we examined carbachol-induced gamma oscillations in hippocampal slices lacking BDNF gene in ...
Ying Huang, Alexei Morozov
doaj   +1 more source

A coupled-oscillator model of olfactory bulb gamma oscillations

PLOS Computational Biology, 2017
The olfactory bulb transforms not only the information content of the primary sensory representation, but also its underlying coding metric. High-variance, slow-timescale primary odor representations are transformed by bulbar circuitry into secondary representations based on principal neuron spike patterns that are tightly regulated in time.
Guo-Shi Li, Thomas A. Cleland
openaire   +4 more sources

Deep brain stimulation-entrained gamma oscillations in chronic home recordings in Parkinson's disease

Brain Stimulation
Background: In Parkinson's disease, invasive brain recordings show that dopaminergic medication can induce narrowband gamma rhythms in the motor cortex and subthalamic nucleus, which co-fluctuate with dyskinesia scores. Deep brain stimulation can entrain
Maria Olaru, Amelia Hahn, Maria Shcherbakova, Simon Little, Wolf-Julian Neumann, Reza Abbasi-Asl, Philip A. Starr   +6 more
doaj   +1 more source

Selective coupling between theta phase and neocortical fast gamma oscillations during REM-sleep in mice.

PLoS ONE, 2011
BackgroundThe mammalian brain expresses a wide range of state-dependent network oscillations which vary in frequency and spatial extension. Such rhythms can entrain multiple neurons into coherent patterns of activity, consistent with a role in behaviour,
Claudia Scheffzük, Valeriy I Kukushka, Alexei L Vyssotski, Andreas Draguhn, Adriano B L Tort, Jurij Brankačk   +5 more
doaj   +1 more source

Effect of low-intensity transcranial ultrasound stimulation on theta and gamma oscillations in the mouse hippocampal CA1

Frontiers in Psychiatry, 2023
Previous studies have demonstrated that low-intensity transcranial ultrasound stimulation (TUS) can eliminate hippocampal neural activity. However, until now, it has remained unclear how ultrasound modulates theta and gamma oscillations in the ...
Zhen Li, Rong Chen, Dachuan Liu, Xizhe Wang, Wei Yuan   +4 more
doaj   +1 more source

Setting up the speech production network : how oscillations contribute to lateralized information routing [PDF]

, 2012
Speech production involves widely distributed brain regions. This MEG study focuses on the spectro-temporal dynamics that contribute to the setup of this network. In 21 participants performing a cue-target reading paradigm, we analyzed local oscillations
Johannes Gehrig, Michael Wibral, Arnold, Christiane, Gehrig, Johannes, Christiane Arnold, Johannes eGehrig, Christian A Kell, Kell, Christian Alexander, Christiane eArnold, Michael eWibral, Christian A. Kell, Wibral, Michael   +11 more
core   +1 more source

Deep Learning Pose Estimation for Phenotyping of Co‐Occurring Hyperkinetic Movement Disorders

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore whether routine outpatient video combined with deep learning‐based pose estimation and clinically interpretable kinematic features can support multi‐label phenotyping of co‐occurring hyperkinetic movement disorders (HMDs).
Laura Cif, Diane Demailly, Gabriella A. Horvàth, Juan Dario Ortigoza Escobar, Nathalie Dorison, Mayté Castro Jiménez, Cécile A. Hubsch, Thomas Wirth, Gun‐Marie Hariz, Sophie Huby, Morgan Dornadic, Zohra Souei, Muhammad Mushhood Ur Rehman, Simone Hemm, Mehdi Boulaymen, Eduardo M. Moraud, Jocelyne Bloch, Xavier Vasques   +17 more
wiley   +1 more source

Stimulus-induced narrow-band gamma oscillations in humans can be recorded using open-hardware low-cost EEG amplifier.

PLoS ONE, 2023
Stimulus-induced narrow-band gamma oscillations (30-70 Hz) in human electro-encephalograph (EEG) have been linked to attentional and memory mechanisms and are abnormal in mental health conditions such as autism, schizophrenia and Alzheimer's Disease ...
Srividya Pattisapu, Supratim Ray
doaj   +1 more source