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さやなみねむら
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8 Speech Audiometry Koichi Yamashita1), Toshimasa Matsuhira2) 1)Kanazawa Medical University, 2)Kitasato University School of Allied Health Science Speech audiometry has been a fundamental tool in the assessment of hearing loss. It provides information concerning both hearing sensitivity to speech stimuli and hearing acuity to understand various speech materials at suprathreshold levels. In everyday clinical practice, the pure-tone threshold test is preferred for hearing loss patients because of its simplicity. However, speech sound recognition tests at suprathreshold level are indispensable in the evaluation of hearing acuity.

9 Speech test materials for use in speech audiometry should be chosen with careful consideration of the linguistic characteristics of the patients' mother tongue. The speech recognition threshold is measured by the use of Spondaic word lists in the US, whereas lists of single digit numerals are used in Japan. Suprathreshold speech-sound recognition testing is performed using phonetically balanced monosyllabic word lists in the US, whereas meaningless monosyllables are used in Japan, which allows a simple dictation method to be used for response testing. Speech audiometry is performed using the mother tongue of the patient. Even though linguistic difference may influence the establishment of a fundamental test method, the principle of the test would not be affected. Speech audiometry can help validate the impact of intervention using hearing aids. The results of cochlear implants can be evaluated directly by speech-sound recognition testing. Also, speech audiometry facilitates audiological rehabilitation in postoperative cases with cochlear implants. 1) IEC : 1993, Audiometers-Part 2: Equipment for speech audiometry. 2) ISO , Acoustics-Audiometrrc test methods-part 3. Speech audiometry. 8) Horiguti S, Yamashita K: Comparison of speech audiometry test-words among various languages. Intn Audiol 5: 275, ) Thibodeau LM: Speech Audiometry, Chap. 13 in Roeser RJ, Valente M. Hosford-Dunn H (Eds.), Audiology Diagnosis. Thieme, New York, 2000, pp ) Nelson DA, Chaiklin JB: Write down versus talkback scoring bias in speech discrimination testing. J Speech Hear Res 13; , ) Fletcher HJ, Steinberg JC: Articulation testing methods. Bell System Technical Journal 8: 806, ) French NR, Steinberg JC: Factors governing the intelligibility of speech sounds. J Acoust Soc Am 19: , ) Egan JP: Articulation testing method. Laryngoscope 58: , 1948

10 28) Nilsson M, Soil SD, Sullivan JA: Development of the hearing in noise test for the measurement of speech reception thresholds in quiet and in noise. J Acoust Soc Am 95 (2); , ) ANSI S3.5: American National Standard Methods for Calculation of the Speech Intelligibility Index ) Humes I: Understanding the speech-understanding problem of the hearing impaired. Journal of the American Academy of Audiology 2: 59-69, ) Muller HG, Killion MC: An easy method for calculating the articulation indeax. Hearing Journal 43: 14-17, ) Pavlovic CV : Speech spectrum considerations and speech intelligibility predictions in hearing aid evaluations. J Speech Hear Dis 54: 3-8, ) Bocca E, Calearo C, Cassinari V et al: Testing "cortical" hearing in temporal lobe tumors. Acta Otolaryngol 45: , 1953 Reprint request: Toshimasa Matsuhira, Ph.D. 1 Chome 15-1, Kitasato, Sagamihara-City, Kanagawa, Japan Kitasato University School of Allied Health Science

Web Stamps 96 KJ Stamps Web Vol 8, No 1, 2004

Web Stamps 96 KJ Stamps Web Vol 8, No 1, 2004 The Journal of the Japan Academy of Nursing Administration and Policies Vol 8, No 1, pp 43 _ 57, 2004 The Literature Review of the Japanese Nurses Job Satisfaction Research Which the Stamps-Ozaki Scale