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Analysis of brain activation and wave frequencies during a sentence completion task: a paradigm used with EEG in aphasic participants

Aphasia is a language disorder that occurs after brain injury and directly affects an individual’s communication. The incidence of stroke increases with age, and one-third of people who have had a stroke develop aphasia. The severity of aphasia changes over time and some aspects of language may impr...

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Autores principales: Lima, Claudia, Lopes, Jeferson Andris, Souza, Victor, Barros, Sarah, Winkler, Ingrid, Senna, Valter
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PeerJ Inc. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10269574/
https://www.ncbi.nlm.nih.gov/pubmed/37334126
http://dx.doi.org/10.7717/peerj.15518
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author Lima, Claudia
Lopes, Jeferson Andris
Souza, Victor
Barros, Sarah
Winkler, Ingrid
Senna, Valter
author_facet Lima, Claudia
Lopes, Jeferson Andris
Souza, Victor
Barros, Sarah
Winkler, Ingrid
Senna, Valter
author_sort Lima, Claudia
collection PubMed
description Aphasia is a language disorder that occurs after brain injury and directly affects an individual’s communication. The incidence of stroke increases with age, and one-third of people who have had a stroke develop aphasia. The severity of aphasia changes over time and some aspects of language may improve, while others remain compromised. Battery task training strategies are used in the rehabilitation of aphasics. The idea of this research is to use electroencephalography (EEG) as a non-invasive method, of electrophysiological monitoring, with a group of aphasic patients in rehabilitation process in a prevention and rehabilitation unit of the person with disabilities of the Unified Health System (SUS), of reference in the state of Bahia-Brazil. In this study, the goal is to analyze brain activation and wave frequencies of aphasic individuals during a sentence completion task, to possibly assist health professionals with the analysis of the aphasic subject’s rehabilitation and task redefinition. We adopted the functional magnetic resonance imaging (fMRI) paradigm, proposed by the American Society for Functional Neuroradiology as a reference paradigm. We applied the paradigm in the group of aphasics with preserved comprehension, right hemiparesis, and left hemisphere injured or affected by stroke. We analyzed four electrodes (F3/F4 and F7/F8) corresponding to the left/right frontal cortex. Preliminary results of this study indicate a more robust activation in the right hemisphere (average of aphasics), with a difference of approximately 14% higher in Theta and Alpha frequencies, with 8% higher in low Beta (BetaL) and with approximately 1% higher in high Beta frequency (BetaH), Gamma frequency was higher by approximately 3% in the left hemisphere of the brain. The difference in electrical activation may be revealing to us a migration of language to the non-language dominant hemisphere. We point to possible evidence suggesting that EEG may be a promising tool for monitoring the rehabilitation of the aphasic subject.
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spelling pubmed-102695742023-06-16 Analysis of brain activation and wave frequencies during a sentence completion task: a paradigm used with EEG in aphasic participants Lima, Claudia Lopes, Jeferson Andris Souza, Victor Barros, Sarah Winkler, Ingrid Senna, Valter PeerJ Neuroscience Aphasia is a language disorder that occurs after brain injury and directly affects an individual’s communication. The incidence of stroke increases with age, and one-third of people who have had a stroke develop aphasia. The severity of aphasia changes over time and some aspects of language may improve, while others remain compromised. Battery task training strategies are used in the rehabilitation of aphasics. The idea of this research is to use electroencephalography (EEG) as a non-invasive method, of electrophysiological monitoring, with a group of aphasic patients in rehabilitation process in a prevention and rehabilitation unit of the person with disabilities of the Unified Health System (SUS), of reference in the state of Bahia-Brazil. In this study, the goal is to analyze brain activation and wave frequencies of aphasic individuals during a sentence completion task, to possibly assist health professionals with the analysis of the aphasic subject’s rehabilitation and task redefinition. We adopted the functional magnetic resonance imaging (fMRI) paradigm, proposed by the American Society for Functional Neuroradiology as a reference paradigm. We applied the paradigm in the group of aphasics with preserved comprehension, right hemiparesis, and left hemisphere injured or affected by stroke. We analyzed four electrodes (F3/F4 and F7/F8) corresponding to the left/right frontal cortex. Preliminary results of this study indicate a more robust activation in the right hemisphere (average of aphasics), with a difference of approximately 14% higher in Theta and Alpha frequencies, with 8% higher in low Beta (BetaL) and with approximately 1% higher in high Beta frequency (BetaH), Gamma frequency was higher by approximately 3% in the left hemisphere of the brain. The difference in electrical activation may be revealing to us a migration of language to the non-language dominant hemisphere. We point to possible evidence suggesting that EEG may be a promising tool for monitoring the rehabilitation of the aphasic subject. PeerJ Inc. 2023-06-12 /pmc/articles/PMC10269574/ /pubmed/37334126 http://dx.doi.org/10.7717/peerj.15518 Text en © 2023 Lima et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.
spellingShingle Neuroscience
Lima, Claudia
Lopes, Jeferson Andris
Souza, Victor
Barros, Sarah
Winkler, Ingrid
Senna, Valter
Analysis of brain activation and wave frequencies during a sentence completion task: a paradigm used with EEG in aphasic participants
title Analysis of brain activation and wave frequencies during a sentence completion task: a paradigm used with EEG in aphasic participants
title_full Analysis of brain activation and wave frequencies during a sentence completion task: a paradigm used with EEG in aphasic participants
title_fullStr Analysis of brain activation and wave frequencies during a sentence completion task: a paradigm used with EEG in aphasic participants
title_full_unstemmed Analysis of brain activation and wave frequencies during a sentence completion task: a paradigm used with EEG in aphasic participants
title_short Analysis of brain activation and wave frequencies during a sentence completion task: a paradigm used with EEG in aphasic participants
title_sort analysis of brain activation and wave frequencies during a sentence completion task: a paradigm used with eeg in aphasic participants
topic Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10269574/
https://www.ncbi.nlm.nih.gov/pubmed/37334126
http://dx.doi.org/10.7717/peerj.15518
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