Mismatch negativity in children with specific language impairment and auditory processing disorder

Detalhes bibliográficos
Autor(a) principal: Rocha-Muniz,Caroline Nunes
Data de Publicação: 2015
Outros Autores: Befi-Lopes,Débora Maria, Schochat,Eliane
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Otorhinolaryngology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-86942015000400408
Resumo: INTRODUCTION: Mismatch negativity, an electrophysiological measure, evaluates the brain's capacity to discriminate sounds, regardless of attentional and behavioral capacity. Thus, this auditory event-related potential is promising in the study of the neurophysiological basis underlying auditory processing.OBJECTIVE: To investigate complex acoustic signals (speech) encoded in the auditory nervous system of children with specific language impairment and compare with children with auditory processing disorders and typical development through the mismatch negativity paradigm.METHODS: It was a prospective study. 75 children (6-12 years) participated in this study: 25 children with specific language impairment, 25 with auditory processing disorders, and 25 with typical development. Mismatch negativity was obtained by subtracting from the waves obtained by the stimuli /ga/ (frequent) and /da/ (rare). Measures of mismatch negativity latency and two amplitude measures were analyzed.RESULTS: It was possible to verify an absence of mismatch negativity in 16% children with specific language impairment and 24% children with auditory processing disorders. In the comparative analysis, auditory processing disorders and specific language impairment showed higher latency values and lower amplitude values compared to typical development.CONCLUSION: These data demonstrate changes in the automatic discrimination of crucial acoustic components of speech sounds in children with specific language impairment and auditory processing disorders. It could indicate problems in physiological processes responsible for ensuring the discrimination of acoustic contrasts in pre-attentional and pre-conscious levels, contributing to poor perception.
id ABORL-F-1_6922d3d3e4dfc6d47ebcff4ad473b01a
oai_identifier_str oai:scielo:S1808-86942015000400408
network_acronym_str ABORL-F-1
network_name_str Brazilian Journal of Otorhinolaryngology
repository_id_str
spelling Mismatch negativity in children with specific language impairment and auditory processing disorderElectrophysiologyAuditory perceptionAuditory perceptual disordersEvoked potentials auditoryLanguage development disordersINTRODUCTION: Mismatch negativity, an electrophysiological measure, evaluates the brain's capacity to discriminate sounds, regardless of attentional and behavioral capacity. Thus, this auditory event-related potential is promising in the study of the neurophysiological basis underlying auditory processing.OBJECTIVE: To investigate complex acoustic signals (speech) encoded in the auditory nervous system of children with specific language impairment and compare with children with auditory processing disorders and typical development through the mismatch negativity paradigm.METHODS: It was a prospective study. 75 children (6-12 years) participated in this study: 25 children with specific language impairment, 25 with auditory processing disorders, and 25 with typical development. Mismatch negativity was obtained by subtracting from the waves obtained by the stimuli /ga/ (frequent) and /da/ (rare). Measures of mismatch negativity latency and two amplitude measures were analyzed.RESULTS: It was possible to verify an absence of mismatch negativity in 16% children with specific language impairment and 24% children with auditory processing disorders. In the comparative analysis, auditory processing disorders and specific language impairment showed higher latency values and lower amplitude values compared to typical development.CONCLUSION: These data demonstrate changes in the automatic discrimination of crucial acoustic components of speech sounds in children with specific language impairment and auditory processing disorders. It could indicate problems in physiological processes responsible for ensuring the discrimination of acoustic contrasts in pre-attentional and pre-conscious levels, contributing to poor perception.Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial.2015-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-86942015000400408Brazilian Journal of Otorhinolaryngology v.81 n.4 2015reponame:Brazilian Journal of Otorhinolaryngologyinstname:Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial (ABORL-CCF)instacron:ABORL-CCF10.1016/j.bjorl.2014.08.022info:eu-repo/semantics/openAccessRocha-Muniz,Caroline NunesBefi-Lopes,Débora MariaSchochat,Elianeeng2015-09-02T00:00:00Zoai:scielo:S1808-86942015000400408Revistahttp://www.bjorl.org.br/https://old.scielo.br/oai/scielo-oai.phprevista@aborlccf.org.br||revista@aborlccf.org.br1808-86861808-8686opendoar:2015-09-02T00:00Brazilian Journal of Otorhinolaryngology - Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial (ABORL-CCF)false
dc.title.none.fl_str_mv Mismatch negativity in children with specific language impairment and auditory processing disorder
title Mismatch negativity in children with specific language impairment and auditory processing disorder
spellingShingle Mismatch negativity in children with specific language impairment and auditory processing disorder
Rocha-Muniz,Caroline Nunes
Electrophysiology
Auditory perception
Auditory perceptual disorders
Evoked potentials auditory
Language development disorders
title_short Mismatch negativity in children with specific language impairment and auditory processing disorder
title_full Mismatch negativity in children with specific language impairment and auditory processing disorder
title_fullStr Mismatch negativity in children with specific language impairment and auditory processing disorder
title_full_unstemmed Mismatch negativity in children with specific language impairment and auditory processing disorder
title_sort Mismatch negativity in children with specific language impairment and auditory processing disorder
author Rocha-Muniz,Caroline Nunes
author_facet Rocha-Muniz,Caroline Nunes
Befi-Lopes,Débora Maria
Schochat,Eliane
author_role author
author2 Befi-Lopes,Débora Maria
Schochat,Eliane
author2_role author
author
dc.contributor.author.fl_str_mv Rocha-Muniz,Caroline Nunes
Befi-Lopes,Débora Maria
Schochat,Eliane
dc.subject.por.fl_str_mv Electrophysiology
Auditory perception
Auditory perceptual disorders
Evoked potentials auditory
Language development disorders
topic Electrophysiology
Auditory perception
Auditory perceptual disorders
Evoked potentials auditory
Language development disorders
description INTRODUCTION: Mismatch negativity, an electrophysiological measure, evaluates the brain's capacity to discriminate sounds, regardless of attentional and behavioral capacity. Thus, this auditory event-related potential is promising in the study of the neurophysiological basis underlying auditory processing.OBJECTIVE: To investigate complex acoustic signals (speech) encoded in the auditory nervous system of children with specific language impairment and compare with children with auditory processing disorders and typical development through the mismatch negativity paradigm.METHODS: It was a prospective study. 75 children (6-12 years) participated in this study: 25 children with specific language impairment, 25 with auditory processing disorders, and 25 with typical development. Mismatch negativity was obtained by subtracting from the waves obtained by the stimuli /ga/ (frequent) and /da/ (rare). Measures of mismatch negativity latency and two amplitude measures were analyzed.RESULTS: It was possible to verify an absence of mismatch negativity in 16% children with specific language impairment and 24% children with auditory processing disorders. In the comparative analysis, auditory processing disorders and specific language impairment showed higher latency values and lower amplitude values compared to typical development.CONCLUSION: These data demonstrate changes in the automatic discrimination of crucial acoustic components of speech sounds in children with specific language impairment and auditory processing disorders. It could indicate problems in physiological processes responsible for ensuring the discrimination of acoustic contrasts in pre-attentional and pre-conscious levels, contributing to poor perception.
publishDate 2015
dc.date.none.fl_str_mv 2015-08-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-86942015000400408
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-86942015000400408
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1016/j.bjorl.2014.08.022
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial.
publisher.none.fl_str_mv Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial.
dc.source.none.fl_str_mv Brazilian Journal of Otorhinolaryngology v.81 n.4 2015
reponame:Brazilian Journal of Otorhinolaryngology
instname:Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial (ABORL-CCF)
instacron:ABORL-CCF
instname_str Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial (ABORL-CCF)
instacron_str ABORL-CCF
institution ABORL-CCF
reponame_str Brazilian Journal of Otorhinolaryngology
collection Brazilian Journal of Otorhinolaryngology
repository.name.fl_str_mv Brazilian Journal of Otorhinolaryngology - Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial (ABORL-CCF)
repository.mail.fl_str_mv revista@aborlccf.org.br||revista@aborlccf.org.br
_version_ 1754575991659823104