Journal article
Effects of Contralateral Masking on High-Frequency Bone-Conduction Thresholds
International journal of audiology, Vol.29(6), pp.297-303
1990
PMID: 2275644
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The present study reports effects of contralateral masking on high-frequency threshold force levels in 28 normal-hearing subjects. High-frequency air- and bone-conduction thresholds were measured with a high-frequency auditory evaluation system using matched Koss HV/1A earphones and the Pracitronic KH 70/5 bone vibrator. Measurements were made for both unmasked and masked bone-conduction thresholds at the ipsilateral mastoid of the better ear. The contralateral masked condition was performed using 30-dB-SL 400-Hz narrow-band masking noise centered at frequency of test tone. The results demonstrated that masked high-frequency bone-conduction thresholds were 1.5 to 3.4 dB poorer than the unmasked thresholds and that these differences were statistically significant at 0.01 level of confidence except at 12 kHz. ANSI and ISO standards for bone-conduction threshold force levels for frequencies below 8.0 kHz have been established with contralateral masking stimuli. This study supports the need to use effective contralateral masking to eliminate cross hearing in investigations of high-frequency bone-conduction threshold measurements.
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Details
- Title
- Effects of Contralateral Masking on High-Frequency Bone-Conduction Thresholds
- Creators
- John C. McDermott - United States Department of Veterans AffairsStephen A. Fausti - United States Department of Veterans AffairsJames A. Henry - Veterans Health AdministrationRichard H. Frey - United States Department of Veterans Affairs
- Publication Details
- International journal of audiology, Vol.29(6), pp.297-303
- Publisher
- Informa UK Ltd
- Number of pages
- 7
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Audiology - Distance
- Web of Science ID
- WOS:A1990EJ16800001
- Scopus ID
- 2-s2.0-0025049995
- Other Identifier
- 991022058594304721
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- Web of Science research areas
- Otorhinolaryngology