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Titre : | Frequency discrimination in ears with and without contralateral cochlear dead regions (2013) |
Auteurs : | Peder O. Laugen Heggdal ; Ola Lind ; K. Jonas Brannström |
Type de document : | Article |
Dans : | International Journal of Audiology IJA (Vol.52, n°8, August 2013) |
Langues: | Anglais |
Résumé : | Objective: The purpose of this study was to test the ability to discriminate low-frequency pure-tone stimuli for ears with and without contralateral dead regions, in subjects with bilateral high-frequency hearing loss; we examined associations between hearing loss characteristics and frequency discrimination of low-frequency stimuli in subjects with high-frequency hearing loss. Design: Cochlear dead regions were diagnosed using the TEN-HL test. A frequency discrimination test utilizing an adaptive three-alternative forced choice method provided difference limens for reference frequencies 0.25 kHz and 0.5 kHz. Study sample: Among 105 subjects with bilateral high-frequency hearing loss, unilateral dead regions were found in 15 subjects. These, and an additional 15 matched control subjects without dead regions, were included in the study. Results: Ears with dead regions performed best at the frequency discrimination test. Ears with a contralateral dead region performed significantly better than ears without a contralateral dead region at 0.5 kHz, the reference frequency closest to the mean audiogram cut-off, while the opposite result was obtained at 0.25 kHz. Conclusions: Results may be seen as sign of a contralateral effect of unilateral dead regions on the discrimination of stimuli with frequencies well below the audiogram cut-off in adult subjects with bilateral high-frequency hearing loss. |
Accès : | Contactez la bibliothèque d'Ixelles si le lien vers la ressource électronique ne fonctionne plus |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.tandfonline.com/doi/full/10.3109/14992027.2013.796531 |
Exemplaires (1)
Cote | Support | Localisation | Section | Disponibilité |
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International journal of audiology IJA. Vol.52, n°8 (August 2013) | Périodique papier | Ixelles | Rez | Consultation sur place uniquement Exclu du prêt |