Event-Related Coherence in Visual Cortex and Brain Noise: An MEG Study

The analysis of neurophysiological data using the two most widely used open-source MATLAB toolboxes, FieldTrip and Brainstorm, validates our hypothesis about the correlation between event-related coherence in the visual cortex and neuronal noise. The analyzed data were obtained from magnetoencephalo...

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Main Authors: Parth Chholak, Semen A. Kurkin, Alexander E. Hramov, Alexander N. Pisarchik
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/11/1/375
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author Parth Chholak
Semen A. Kurkin
Alexander E. Hramov
Alexander N. Pisarchik
author_facet Parth Chholak
Semen A. Kurkin
Alexander E. Hramov
Alexander N. Pisarchik
author_sort Parth Chholak
collection DOAJ
description The analysis of neurophysiological data using the two most widely used open-source MATLAB toolboxes, FieldTrip and Brainstorm, validates our hypothesis about the correlation between event-related coherence in the visual cortex and neuronal noise. The analyzed data were obtained from magnetoencephalography (MEG) experiments based on visual perception of flickering stimuli, in which fifteen subjects effectively participated. Before coherence and brain noise calculations, MEG data were first transformed from recorded channel data to brain source waveforms by solving the inverse problem. The inverse solution was obtained for a 2D cortical shape in Brainstorm and a 3D volume in FieldTrip. We found that stronger brain entrainment to the visual stimuli concurred with higher brain noise in both studies.
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spelling doaj.art-86e36c065bb64defa139de7a01009c112023-11-21T07:47:01ZengMDPI AGApplied Sciences2076-34172021-01-0111137510.3390/app11010375Event-Related Coherence in Visual Cortex and Brain Noise: An MEG StudyParth Chholak0Semen A. Kurkin1Alexander E. Hramov2Alexander N. Pisarchik3Centre for Biomedical Technology, Technical University of Madrid, 28223 Madrid, SpainCentre for Technologies in Robotics and Mechatronics Components, Innopolis University, 420500 Innopolis, RussiaCentre for Technologies in Robotics and Mechatronics Components, Innopolis University, 420500 Innopolis, RussiaCentre for Biomedical Technology, Technical University of Madrid, 28223 Madrid, SpainThe analysis of neurophysiological data using the two most widely used open-source MATLAB toolboxes, FieldTrip and Brainstorm, validates our hypothesis about the correlation between event-related coherence in the visual cortex and neuronal noise. The analyzed data were obtained from magnetoencephalography (MEG) experiments based on visual perception of flickering stimuli, in which fifteen subjects effectively participated. Before coherence and brain noise calculations, MEG data were first transformed from recorded channel data to brain source waveforms by solving the inverse problem. The inverse solution was obtained for a 2D cortical shape in Brainstorm and a 3D volume in FieldTrip. We found that stronger brain entrainment to the visual stimuli concurred with higher brain noise in both studies.https://www.mdpi.com/2076-3417/11/1/375MEGFieldTripBrainstormsource reconstructionflickeringcognitive neuroscience
spellingShingle Parth Chholak
Semen A. Kurkin
Alexander E. Hramov
Alexander N. Pisarchik
Event-Related Coherence in Visual Cortex and Brain Noise: An MEG Study
Applied Sciences
MEG
FieldTrip
Brainstorm
source reconstruction
flickering
cognitive neuroscience
title Event-Related Coherence in Visual Cortex and Brain Noise: An MEG Study
title_full Event-Related Coherence in Visual Cortex and Brain Noise: An MEG Study
title_fullStr Event-Related Coherence in Visual Cortex and Brain Noise: An MEG Study
title_full_unstemmed Event-Related Coherence in Visual Cortex and Brain Noise: An MEG Study
title_short Event-Related Coherence in Visual Cortex and Brain Noise: An MEG Study
title_sort event related coherence in visual cortex and brain noise an meg study
topic MEG
FieldTrip
Brainstorm
source reconstruction
flickering
cognitive neuroscience
url https://www.mdpi.com/2076-3417/11/1/375
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AT semenakurkin eventrelatedcoherenceinvisualcortexandbrainnoiseanmegstudy
AT alexanderehramov eventrelatedcoherenceinvisualcortexandbrainnoiseanmegstudy
AT alexandernpisarchik eventrelatedcoherenceinvisualcortexandbrainnoiseanmegstudy