Sound localization and occupational noise
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 participan...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier España
2014-02-01
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| Series: | Clinics |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-59322014000200083&lng=en&tlng=en |
| _version_ | 1828467190384295936 |
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| author | Pedro de Lemos Menezes Kelly Cristina Lira de Andrade Aline Tenorio Lins Carnauba Frantania B. Cabral Mariana de Carvalho Leal Liliane Desgualdo Pereira |
| author_facet | Pedro de Lemos Menezes Kelly Cristina Lira de Andrade Aline Tenorio Lins Carnauba Frantania B. Cabral Mariana de Carvalho Leal Liliane Desgualdo Pereira |
| author_sort | Pedro de Lemos Menezes |
| collection | DOAJ |
| 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<0.01) than that of the control group. CONCLUSION: Exposure to occupational noise, even when not resulting in hearing loss, may lead to a diminished ability to locate a sound source. |
| first_indexed | 2024-12-11T04:01:23Z |
| format | Article |
| id | doaj.art-213b16b30d4f4290b4e65d755d4165d0 |
| institution | Directory Open Access Journal |
| issn | 1980-5322 |
| language | English |
| last_indexed | 2024-12-11T04:01:23Z |
| publishDate | 2014-02-01 |
| publisher | Elsevier España |
| record_format | Article |
| series | Clinics |
| spelling | doaj.art-213b16b30d4f4290b4e65d755d4165d02022-12-22T01:21:38ZengElsevier EspañaClinics1980-53222014-02-0169208308610.6061/clinics/2014(02)02S1807-59322014000200083Sound localization and occupational noisePedro de Lemos MenezesKelly Cristina Lira de AndradeAline Tenorio Lins CarnaubaFrantania B. CabralMariana de Carvalho LealLiliane Desgualdo PereiraOBJECTIVE: 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<0.01) than that of the control group. CONCLUSION: Exposure to occupational noise, even when not resulting in hearing loss, may lead to a diminished ability to locate a sound source.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-59322014000200083&lng=en&tlng=enNoiseOccupationalSound LocalizationHearing |
| spellingShingle | Pedro de Lemos Menezes Kelly Cristina Lira de Andrade Aline Tenorio Lins Carnauba Frantania B. Cabral Mariana de Carvalho Leal Liliane Desgualdo Pereira Sound localization and occupational noise Clinics Noise Occupational Sound Localization Hearing |
| title | 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_short | Sound localization and occupational noise |
| title_sort | sound localization and occupational noise |
| topic | Noise Occupational Sound Localization Hearing |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-59322014000200083&lng=en&tlng=en |
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