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2002 | Vol. 27, no. 3 | 159-174
Tytuł artykułu

Auditory filters in sensorineural hearing impaired subjects

Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The study is devoted to determination of the shape of the auditory filters in subjects with sensorineural hearing loss. Apart from the classical sensorineural hearing loss, changes in the auditory filter shapes have been analysed in the subject diagnosed with dead regions. The dead region is an area on the basilar membrane over which the functioning of the inner hair cells and/or neurones innervating them has ceased. This type of hearing impairment means that the information on the sounds whose frequencies correspond to the dead region of the basilar membrane are to a very limited degree if at all, transmitted to higher levels of the auditory path. This transmission, if happens, is performed through the auditory filters at the centre frequency other than that of the signal. This phenomenon and the fact that in the dead region the hearing loss is theoretically infinite, affect the transmittance of the auditory filters. Results of the study reported here have shown that in general, the subjects with sensorineural hearing loss develop broadening of the auditory filter accompanied by reducing of its dynamics. This fact explains a considerable decrease in speech intelligibility presented at a background of a noise. In the subject with the dead regions the broadening of the filters was the greatest in the region of the dead one. The results also indicate the lack of correlation between the shape and width of the auditory filter and the shape of the audiogram.
Słowa kluczowe
Wydawca

Rocznik
Strony
159-174
Opis fizyczny
Bibliogr. 21 poz., tab., wykr.
Twórcy
  • Institute of Acoustics, A. Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland
autor
  • Institute of Acoustics, A. Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland
autor
  • Institute of Acoustics, A. Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland
autor
  • Institute of Acoustics, A. Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland
Bibliografia
  • [1] B. R. Glasberg and B. C. J. Moore, Auditory filter shapes in subjects with unilateral and bilateral cochlear impairments, J. Acoust. Soc. Am., 79, 1020-1033 (1986).
  • [2] B. R. Glasberg and B. C. J. Moore, Derivation of auditory filter shapes from notched-noise data, Hearing Research, 47, 103-138 (1990).
  • [3] B. R. Glasberg and B. C. J. Moore, Frequency selectivity as a function of level and frequency measured with uniformly exciting notched noise, J. Acoust. Soc. Am., 108, 2318-2328 (2000).
  • [4] B. R. Glasberg, B. C. J. Moore, R. D. Patterson and J. Nimmo-Smith, Dynamic range and asymmetry of the auditory filter, J. Acoust. Soc. Am., 76, 419-427 (1984).
  • [5] M. Huss, B. C. J. Moore, et al., Perception of pure tones by listeners with and without a „dead region”, Brit. J. Audiol. (in press) (2000).
  • [6] B. C. J. Moore, Frequency selectivity and temporal resolution in normal and hearing impaired listeners, Brit. J. Audiol. 19, 189-201 (1985).
  • [7] B. C. J. Moore, An introduction to the psychology of hearing, 4th Ed. San Diego, Academic (1997).
  • [8] B. C. J. Moore, (2001), Dead regions in the cochlea: Diagnosis, perceptual consequences, and implications for the fitting of hearing aids, Trends in Amplification, 5, 1, 1-34 (2001).
  • [9] B. C. J. Moore and J. I. Alcántara, The use of psychophysical tuning curves to explore dead regions in the cochlea, Ear and Hearing, 22, 268-278 (2001).
  • [10] B. C. J. Moore and B. R. Glasberg, Auditory filter shapes derived in simultaneous and forward masking, J. Acoust. Soc. Am., 70, 1003-1014 (1981).
  • [11] B. C. J. Moore and B. R. Glasberg, Suggested formulae for calculating auditory-filter bandwidths and excitation patterns, J. Acoust. Soc. Am., 74, 750-753 (1983).
  • [12] B. C. J. Moore, B. R. Glasberg, A. Simpson, Evaluation of a method of simulating reduced frequency selectivity, J. Acoust. Soc. Am., 91, 3402-3423 (1992).
  • [13] B. C. J. Moore, M. Huss, et al., A test for the diagnosis of dead regions in the cochlea, Brit. J. Audiol., 34, 205-224 (2000).
  • [14] B. C. J. Moore, R. W. Peters, B. R. Glasberg, Auditory filter shapes at low center frequencies, J. Acoust. Soc. Am., 88, 132-140 (1990).
  • [15] R. D. Patterson, Auditory filter shape, J. Acoust. Soc. Am., 55, 802-809 (1974).
  • [16] R. D. Patterson, Auditory filter shapes derived with noise stimuli, J. Acoust. Soc. Am., 59, 640-654 (1976).
  • [17] R. D. Patterson and I. Nimmo-Smith, Off-frequency listening and auditory filter asymmetry, J. Acoust. Soc. Am., 67, 229-245 (1980).
  • [18] R. W. Peters and B. C. J. Moore, Auditory filter shapes at low center frequencies in young and elderly hearing-impaired subjects, J. Acoust. Soc. Am., 91, 1, 256-266 (1992).
  • [19] M. A. Ruggero, Responses to sound of the basilar membrane of the mammalian cochlea, Current Opinion in Neurobiology, 2, 449-456 (1992).
  • [20] L. L. M. Vogten, Pure-tone masking: A new result from a new method. Facts and Models in Hearing, E. Zwicker and E. Terhardt [Ed.], Springer-Verlag, Berlin 1974, 142-155.
  • [21] G. K. Yates, Cochlear structure and function. Hearing. B. C. J. Moore [Ed.], Academic Press, San Diego 1995, 41-73.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.baztech-article-BAT3-0004-0045
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