{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T14:16:24Z","timestamp":1790864184863,"version":"4.1.0"},"reference-count":0,"publisher":"American Academy of Audiology","issue":"7","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["j am acad audiol"],"published-print":{"date-parts":[[2004,7,1]]},"abstract":"<jats:p>The purpose of this study was to compare threshold-matched ears with and without suspected cochlear dead regions in terms of the speech perception benefit from high-frequency amplification. The Threshold Equalizing Noise Test (TEN) was used to assess the presence of dead regions. Speech\n perception was measured while participants were wearing a hearing aid fit to approximate DSL[i\/o] targets. Consonant identification of nonsense vowelconsonant-vowel combinations was measured in quiet using a forced-choice procedure. Phoneme recognition was measured at signal-to-noise ratios\n ranging from 0 to +15 dB using the Computer-Assisted Speech Perception Assessment test (CASPA). Recognition scores were obtained for unfiltered stimuli and stimuli that were low-pass filtered at the estimated boundary of the suspected dead regions, \u00bd octave above and 1 octave above the\n boundary. Filter settings for the ears without suspected dead regions were the same as settings of the threshold-matched counterpart.In quiet and in low levels of noise, speech perception scores were significantly higher for the wide-band (unfiltered) condition than for the filtered conditions,\n and performance was similar for the ears with and without suspected dead regions. In high levels of noise, mean scores were highest in the wide-band condition for the ears without suspected dead regions, but performance reached an asymptote for the ears with suspected dead regions. These results\n suggest that patients with cochlear dead regions may experience speech perception benefit from wide-band high-frequency gain in quiet and low levels of noise, but not in high levels of noise. El prop\u00f3sito de este estudio fue comparar o\u00eddos ordenados por umbral, con y sin la sospecha\n de poseer regiones cocleares muertas, analizados en t\u00e9rminos del beneficio de la amplificaci\u00f3n en las altas frecuencias para la percepci\u00f3n del lenguaje. Se utiliz\u00f3 la Prueba de Ruido Ecualizador del Umbral (TEN) para evaluar la presencia de regiones muertas. La\n percepci\u00f3n del lenguaje fue evaluada mientras los participantes estaban utilizando auxiliares auditivos graduados para acercarse a las metas DSL[i\/o]. La identificaci\u00f3n de consonantes en combinaciones vocal-consonante-vocal sin sentido, se midi\u00f3 en silencio usando un procedimiento\n de escogencia forzada. El reconocimiento de fonemas fue medido con tasas de se\u00f1al\/ruido desde 0 a +15 dB, usando la prueba de Evaluaci\u00f3n de la Percepci\u00f3n del Lenguaje Asistida por Computadora (CASPA). Los puntajes de reconocimiento fueron obtenidos para est\u00edmulos\n no filtrados y est\u00edmulos que fueron filtrados con filtros de pasa-bajo, en el l\u00edmite estimado de las regiones sospechosas de estar muertas, media octava por encima y por debajo de dicho l\u00edmite. El establecimiento de los filtros para los o\u00eddos sin \u00e1reas muertas\n fue igual al de las contrapartes ordenadas por umbral.En silencio y en niveles bajos de ruido, los puntajes de la percepci\u00f3n del lenguaje fueron significativamente m\u00e1s altos para las condiciones de banda ancha (no filtradas) que para las filtradas, y el rendimiento fue similar\n para los o\u00eddos con y sin regiones sospechosas de estar muertas. A niveles elevados de ruido, los puntajes medios en la condici\u00f3n de banda ancha fueron los m\u00e1s altos para aquellos o\u00eddos sin \u00e1reas muertas, pero el rendimiento alcanz\u00f3 una as\u00edntota\n para los o\u00eddos con regiones sospechosas de estar muertas. Estos resultados sugieren que los pacientes con \u00e1reas cocleares muertas pueden experimentar un beneficio en la percepci\u00f3n del lenguaje a partir de una ganancia de banda ancha y alta frecuencia, en silencio y a niveles\n bajos de ruido, pero no en medio de niveles elevados de ruido.<\/jats:p>","DOI":"10.3766\/jaaa.15.7.4","type":"journal-article","created":{"date-parts":[[2008,4,22]],"date-time":"2008-04-22T23:54:28Z","timestamp":1208908468000},"page":"498-507","source":"Crossref","is-referenced-by-count":32,"title":["Limiting High-Frequency Hearing Aid Gain in Listeners with and without Suspected Cochlear Dead Regions"],"prefix":"10.3766","volume":"15","author":[{"given":"Carol L.","family":"Mackersie","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tracy L.","family":"Crocker","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rebecca A.","family":"Davis","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2087","container-title":["Journal of the American Academy of Audiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ingentaconnect.com\/content\/aaa\/jaaa\/2004\/00000015\/00000007\/art00004","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,2,5]],"date-time":"2025-02-05T23:09:54Z","timestamp":1738796994000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ingentaconnect.com\/content\/10.3766\/jaaa.15.7.4"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2004,7,1]]},"references-count":0,"journal-issue":{"issue":"7","published-print":{"date-parts":[[2004,7,1]]}},"alternative-id":["1050-0545(20040701)15:7L.498;1-"],"URL":"https:\/\/doi.org\/10.3766\/jaaa.15.7.4","relation":{},"ISSN":["1050-0545"],"issn-type":[{"value":"1050-0545","type":"print"}],"subject":[],"published":{"date-parts":[[2004,7,1]]}}}