Sound localization and occupational noise
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Clinics |
Texto Completo: | https://www.revistas.usp.br/clinics/article/view/77089 |
Resumo: | OBJECTIVE: The aim of this study was to determine the effects of occupational noise on sound localization in different spatial planes and frequencies among normal hearing firefighters. METHOD: A total of 29 adults with pure-tone hearing thresholds below 25 dB took part in the study. The participants were divided into a group of 19 firefighters exposed to occupational noise and a control group of 10 adults who were not exposed to such noise. All subjects were assigned a sound localization task involving 117 stimuli from 13 sound sources that were spatially distributed in horizontal, vertical, midsagittal and transverse planes. The three stimuli, which were square waves with fundamental frequencies of 500, 2,000 and 4,000 Hz, were presented at a sound level of 70 dB and were randomly repeated three times from each sound source. The angle between the speaker's axis in the same plane was 45°, and the distance to the subject was 1 m. RESULT: The results demonstrate that the sound localization ability of the firefighters was significantly lower (p |
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oai:revistas.usp.br:article/77089 |
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Clinics |
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Sound localization and occupational noiseOBJECTIVE: The aim of this study was to determine the effects of occupational noise on sound localization in different spatial planes and frequencies among normal hearing firefighters. METHOD: A total of 29 adults with pure-tone hearing thresholds below 25 dB took part in the study. The participants were divided into a group of 19 firefighters exposed to occupational noise and a control group of 10 adults who were not exposed to such noise. All subjects were assigned a sound localization task involving 117 stimuli from 13 sound sources that were spatially distributed in horizontal, vertical, midsagittal and transverse planes. The three stimuli, which were square waves with fundamental frequencies of 500, 2,000 and 4,000 Hz, were presented at a sound level of 70 dB and were randomly repeated three times from each sound source. The angle between the speaker's axis in the same plane was 45°, and the distance to the subject was 1 m. RESULT: The results demonstrate that the sound localization ability of the firefighters was significantly lower (pHospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo2014-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/clinics/article/view/7708910.1590/clin.v69i2.77089Clinics; Vol. 69 No. 2 (2014); 83-86Clinics; v. 69 n. 2 (2014); 83-86Clinics; Vol. 69 Núm. 2 (2014); 83-861980-53221807-5932reponame:Clinicsinstname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/clinics/article/view/77089/80956Menezes, Pedro de LemosAndrade, Kelly Cristina Lira deCarnauba, Aline Tenorio LinsCabral, Frantania B.Leal, Mariana de CarvalhoPereira, Liliane Desgualdoinfo:eu-repo/semantics/openAccess2014-03-24T12:27:21Zoai:revistas.usp.br:article/77089Revistahttps://www.revistas.usp.br/clinicsPUBhttps://www.revistas.usp.br/clinics/oai||clinics@hc.fm.usp.br1980-53221807-5932opendoar:2014-03-24T12:27:21Clinics - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Sound localization and occupational noise |
title |
Sound localization and occupational noise |
spellingShingle |
Sound localization and occupational noise Menezes, Pedro de Lemos |
title_short |
Sound localization and occupational noise |
title_full |
Sound localization and occupational noise |
title_fullStr |
Sound localization and occupational noise |
title_full_unstemmed |
Sound localization and occupational noise |
title_sort |
Sound localization and occupational noise |
author |
Menezes, Pedro de Lemos |
author_facet |
Menezes, Pedro de Lemos Andrade, Kelly Cristina Lira de Carnauba, Aline Tenorio Lins Cabral, Frantania B. Leal, Mariana de Carvalho Pereira, Liliane Desgualdo |
author_role |
author |
author2 |
Andrade, Kelly Cristina Lira de Carnauba, Aline Tenorio Lins Cabral, Frantania B. Leal, Mariana de Carvalho Pereira, Liliane Desgualdo |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Menezes, Pedro de Lemos Andrade, Kelly Cristina Lira de Carnauba, Aline Tenorio Lins Cabral, Frantania B. Leal, Mariana de Carvalho Pereira, Liliane Desgualdo |
description |
OBJECTIVE: The aim of this study was to determine the effects of occupational noise on sound localization in different spatial planes and frequencies among normal hearing firefighters. METHOD: A total of 29 adults with pure-tone hearing thresholds below 25 dB took part in the study. The participants were divided into a group of 19 firefighters exposed to occupational noise and a control group of 10 adults who were not exposed to such noise. All subjects were assigned a sound localization task involving 117 stimuli from 13 sound sources that were spatially distributed in horizontal, vertical, midsagittal and transverse planes. The three stimuli, which were square waves with fundamental frequencies of 500, 2,000 and 4,000 Hz, were presented at a sound level of 70 dB and were randomly repeated three times from each sound source. The angle between the speaker's axis in the same plane was 45°, and the distance to the subject was 1 m. RESULT: The results demonstrate that the sound localization ability of the firefighters was significantly lower (p |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-02-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.revistas.usp.br/clinics/article/view/77089 10.1590/clin.v69i2.77089 |
url |
https://www.revistas.usp.br/clinics/article/view/77089 |
identifier_str_mv |
10.1590/clin.v69i2.77089 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/clinics/article/view/77089/80956 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo |
publisher.none.fl_str_mv |
Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo |
dc.source.none.fl_str_mv |
Clinics; Vol. 69 No. 2 (2014); 83-86 Clinics; v. 69 n. 2 (2014); 83-86 Clinics; Vol. 69 Núm. 2 (2014); 83-86 1980-5322 1807-5932 reponame:Clinics instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Clinics |
collection |
Clinics |
repository.name.fl_str_mv |
Clinics - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
||clinics@hc.fm.usp.br |
_version_ |
1800222760846229504 |