AUDIOLOGY JAPAN
Online ISSN : 1883-7301
Print ISSN : 0303-8106
ISSN-L : 0303-8106
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Volume 46, Issue 6
Displaying 1-6 of 6 articles from this issue
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  • Gender and Ear Asymmetry in Newborn and Infant Hearing Screening on Transient Otoacoustic Emission
    Yuko Saitoh, Takema Sakoda, Michio Hazama, Hiroshi Ikeda, Satoshi Seno ...
    2003 Volume 46 Issue 6 Pages 583-589
    Published: December 28, 2003
    Released on J-STAGE: August 05, 2010
    DOIhttps://doi.org/10.4295/audiology.46.583
    JOURNAL FREE ACCESS
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    We studied the effects of gender and ear asymmetry of infants in transient evoked otoacoustic emission (TEOAE), including signal-to-noise ratios (SNR) and emission reproducibility, using otoacoustic emission for screening in a well-born nursery. TEOAE was analyzed in 253 healthy full-term newborns, i. e., 138 males and 115 females. Results indicated significant gender and ear effects on SNR, response, and whole wave and band reproducibility. The right ear was found to have higher whole wave reproducibility, response, SNR, and band reproducibility than the left ear. Girls showed higher whole wave reproducibility, response, band reproducibility, and SNR than boys, as we discuss in light of previous results.
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  • Recognition of Speech by Hearing Aids with Adaptive Beamformer (senso Diva®) under the Noise Environment
    Takema Sakoda, Michio Hazama, Yuko Saitoh, Satoshi Seno, Hiroki Ikeda, ...
    2003 Volume 46 Issue 6 Pages 590-594
    Published: December 28, 2003
    Released on J-STAGE: August 05, 2010
    DOIhttps://doi.org/10.4295/audiology.46.590
    JOURNAL FREE ACCESS
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    We studied the efficacy of a digital hearing aid with an adaptive beamformer (senso Diva® SD-9M). The hearing aid was fitted using an SP3 fitting device. The testing protocol included speech recognition tests using 67S word lists presented at 60dBSPL (0° azimuth) in the presence of 70dBSPL speech noise (at 90° or 180° azimuth). Speech recognition scores were measured while subjects wore an SD-9M with 4 fitting algorithm or noise azimuth conditions (beamformer on/90°; beamformer on/180°; beamformer off/90°; and music mode/90°), Results showed that speech recognition in noise improved with the beamformer.
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  • Sensorineural Hearing Loss Associated with Mitochondrial DNA Mutation
    Shunsuke Miyamoto, Hajime Sano, Yuichi Ono, Mitsukuni Nitta, Makito Ok ...
    2003 Volume 46 Issue 6 Pages 595-600
    Published: December 28, 2003
    Released on J-STAGE: August 05, 2010
    DOIhttps://doi.org/10.4295/audiology.46.595
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    A-to-G mutation at nucleotide positions 3243 and 1555 of mitochondrial DNA may cause sensorineural hearing loss. We studied such mutation in patients with bilateral sensorineural hearing loss of unknown etiology, finding 3 cases of A3243G mutation and 1 of A1555G mutation in 46 cases. It 3243 mutation is reported to be associated with diabetes mellitus and maternally inherited sensorineural hearing loss, and our study showed 3 cased of A3243G mutation in 8 cases having both maternally inherited hearing loss and diabetes mellitus. A case of A1555G mutation occurred in 1 case of maternally inherited hearing loss. Hearing loss related to A3243G mutation was characterized by late onset in adulthood and slow progression. That in A1555G mutation was characterized by comparatively rapid hearing loss.
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  • [title in Japanese]
    2003 Volume 46 Issue 6 Pages 601-619
    Published: December 28, 2003
    Released on J-STAGE: November 26, 2010
    DOIhttps://doi.org/10.4295/audiology.46.601
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  • [title in Japanese]
    2003 Volume 46 Issue 6 Pages 621-637
    Published: December 28, 2003
    Released on J-STAGE: August 05, 2010
    DOIhttps://doi.org/10.4295/audiology.46.621
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    2003 Volume 46 Issue 6 Pages 638-673
    Published: December 28, 2003
    Released on J-STAGE: August 05, 2010
    DOIhttps://doi.org/10.4295/audiology.46.638
    JOURNAL FREE ACCESS
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