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Biological Computation Indexes of Brain Oscillations in Unattended Facial Expression Processing Based on Event-Related Synchronization/Desynchronization

Estimation of human emotions from Electroencephalogram (EEG) signals plays a vital role in affective Brain Computer Interface (BCI). The present study investigated the different event-related synchronization (ERS) and event-related desynchronization (ERD) of typical brain oscillations in processing...

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Detalles Bibliográficos
Autores principales: Yu, Bo, Ma, Lin, Li, Haifeng, Zhao, Lun, Bo, Hongjian, Wang, Xunda
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4947680/
https://www.ncbi.nlm.nih.gov/pubmed/27471545
http://dx.doi.org/10.1155/2016/8958750
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author Yu, Bo
Ma, Lin
Li, Haifeng
Zhao, Lun
Bo, Hongjian
Wang, Xunda
author_facet Yu, Bo
Ma, Lin
Li, Haifeng
Zhao, Lun
Bo, Hongjian
Wang, Xunda
author_sort Yu, Bo
collection PubMed
description Estimation of human emotions from Electroencephalogram (EEG) signals plays a vital role in affective Brain Computer Interface (BCI). The present study investigated the different event-related synchronization (ERS) and event-related desynchronization (ERD) of typical brain oscillations in processing Facial Expressions under nonattentional condition. The results show that the lower-frequency bands are mainly used to update Facial Expressions and distinguish the deviant stimuli from the standard ones, whereas the higher-frequency bands are relevant to automatically processing different Facial Expressions. Accordingly, we set up the relations between each brain oscillation and processing unattended Facial Expressions by the measures of ERD and ERS. This research first reveals the contributions of each frequency band for comprehension of Facial Expressions in preattentive stage. It also evidences that participants have emotional experience under nonattentional condition. Therefore, the user's emotional state under nonattentional condition can be recognized in real time by the ERD/ERS computation indexes of different frequency bands of brain oscillations, which can be used in affective BCI to provide the user with more natural and friendly ways.
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spelling pubmed-49476802016-07-28 Biological Computation Indexes of Brain Oscillations in Unattended Facial Expression Processing Based on Event-Related Synchronization/Desynchronization Yu, Bo Ma, Lin Li, Haifeng Zhao, Lun Bo, Hongjian Wang, Xunda Comput Math Methods Med Research Article Estimation of human emotions from Electroencephalogram (EEG) signals plays a vital role in affective Brain Computer Interface (BCI). The present study investigated the different event-related synchronization (ERS) and event-related desynchronization (ERD) of typical brain oscillations in processing Facial Expressions under nonattentional condition. The results show that the lower-frequency bands are mainly used to update Facial Expressions and distinguish the deviant stimuli from the standard ones, whereas the higher-frequency bands are relevant to automatically processing different Facial Expressions. Accordingly, we set up the relations between each brain oscillation and processing unattended Facial Expressions by the measures of ERD and ERS. This research first reveals the contributions of each frequency band for comprehension of Facial Expressions in preattentive stage. It also evidences that participants have emotional experience under nonattentional condition. Therefore, the user's emotional state under nonattentional condition can be recognized in real time by the ERD/ERS computation indexes of different frequency bands of brain oscillations, which can be used in affective BCI to provide the user with more natural and friendly ways. Hindawi Publishing Corporation 2016 2016-07-04 /pmc/articles/PMC4947680/ /pubmed/27471545 http://dx.doi.org/10.1155/2016/8958750 Text en Copyright © 2016 Bo Yu et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Yu, Bo
Ma, Lin
Li, Haifeng
Zhao, Lun
Bo, Hongjian
Wang, Xunda
Biological Computation Indexes of Brain Oscillations in Unattended Facial Expression Processing Based on Event-Related Synchronization/Desynchronization
title Biological Computation Indexes of Brain Oscillations in Unattended Facial Expression Processing Based on Event-Related Synchronization/Desynchronization
title_full Biological Computation Indexes of Brain Oscillations in Unattended Facial Expression Processing Based on Event-Related Synchronization/Desynchronization
title_fullStr Biological Computation Indexes of Brain Oscillations in Unattended Facial Expression Processing Based on Event-Related Synchronization/Desynchronization
title_full_unstemmed Biological Computation Indexes of Brain Oscillations in Unattended Facial Expression Processing Based on Event-Related Synchronization/Desynchronization
title_short Biological Computation Indexes of Brain Oscillations in Unattended Facial Expression Processing Based on Event-Related Synchronization/Desynchronization
title_sort biological computation indexes of brain oscillations in unattended facial expression processing based on event-related synchronization/desynchronization
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4947680/
https://www.ncbi.nlm.nih.gov/pubmed/27471545
http://dx.doi.org/10.1155/2016/8958750
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