Hostname: page-component-78c5997874-fbnjt Total loading time: 0 Render date: 2024-11-20T04:52:49.307Z Has data issue: false hasContentIssue false
  • English
  • Français

Speech perception in individuals with auditory dys-synchrony

Published online by Cambridge University Press:  01 October 2010

U A Kumar  and
M Jayaram
U A Kumar*
Affiliation:
Department of audiology and speech language pathology, Kasturba Medial College (a unit of Manipal University), Mangalore, India
M Jayaram
Affiliation:
Department of Speech Language Pathology and Audiology, National Institute of Mental Health and Neuroscience, Bangalore, India
*
Address for correspondence: Dr U Ajith Kumar, Associate Professor, Department of Audiology and Speech Language Pathology, Kasturba Medical College (a unit of Manipal University), Mangalore, India E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

Objective:

This study aimed to evaluate the effect of lengthening the transition duration of selected speech segments upon the perception of those segments in individuals with auditory dys-synchrony.

Methods:

Thirty individuals with auditory dys-synchrony participated in the study, along with 30 age-matched normal hearing listeners. Eight consonant–vowel syllables were used as auditory stimuli. Two experiments were conducted. Experiment one measured the ‘just noticeable difference’ time: the smallest prolongation of the speech sound transition duration which was noticeable by the subject. In experiment two, speech sounds were modified by lengthening the transition duration by multiples of the just noticeable difference time, and subjects' speech identification scores for the modified speech sounds were assessed.

Results:

Subjects with auditory dys-synchrony demonstrated poor processing of temporal auditory information. Lengthening of speech sound transition duration improved these subjects' perception of both the placement and voicing features of the speech syllables used.

Conclusion:

These results suggest that innovative speech processing strategies which enhance temporal cues may benefit individuals with auditory dys-synchrony.

Keywords

Auditory DisorderAuditory Brainstem ResponsesSpeech PerceptionAuditory dys-synchronyAuditory Neuropathy
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 125 , Issue 3 , March 2011 , pp. 236 - 245
Copyright
Copyright © JLO (1984) Limited 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1Starr, A, Picton, TW, Sininger, Y, Hood, L, Berlin, CI. Auditory, neuropathy. Brain 1996;119:741–53CrossRefGoogle Scholar
2Kumar, UA, Jayaram, M. Prevalence and audiological charecteristics in individuals with auditory neuropathy/auditory dys-synchrony. Int J Audiol 2006;45:360–6CrossRefGoogle Scholar
3Berlin, C, Hood, L, Morlet, T, Rose, K, Brashears, S. Auditory Neuropathy/Dys-synchrony: Diagnosis and Management. Ment Retard Dev Disabil Res Rev 2003;9:225–31CrossRefGoogle ScholarPubMed
4Rance, G, Beer, DE, Cone-Wesson, B, Shepherd, RK, Dowell, RC, King, AM et al. Clinical findings for a group of infants and young children with auditory neuropathy. Ear Hear 1999;20:238–52CrossRefGoogle ScholarPubMed
5Starr, A, Michalewski, HJ, Zeng, FG, Brooks, SF, Linthicum, F, Kim, CS et al. Pathology and physiology of auditory neuropathy with a novel mutation in the MPZ gene. Brain 2003;126:1604–19CrossRefGoogle ScholarPubMed
6Salvi, RJ, Wang, J, Ding, D, Stecker, N, Arnold, S. Auditory deprivation of the central auditory system resulting from selective inner hair cell loss: animal model of auditory neuropathy. Scand Audiol Suppl 1999;51:1–12Google ScholarPubMed
7Starr, A, Sininger, YS, Praat, H. Varieties of auditory neuropathy. J Basic Clin Physiol Pharmocol 2000;11:215–29CrossRefGoogle ScholarPubMed
8Starr, A, Picton, TW, Kim, R. Pathophysiology of Auditory Neuropathy. Canada: Singular Publishing, 2001Google ScholarPubMed
9Rance, G, McKay, C, Grayden, D. Perceptual characterization of children with auditory neuropathy. Ear Hear 2004;25:34–46CrossRefGoogle ScholarPubMed
10Kumar, UA, Jayaram, M. Auditory processing in individuals with auditory nueropathy. Behav Brain Funct 2005;1:8CrossRefGoogle Scholar
11Zeng, FG, Kong, YY, Michalewski, HJ, Starr, A. Perceptual consequences of disrupted auditory nerve activity. J Neurophysiol 2005;93:3050–63CrossRefGoogle ScholarPubMed
12Zeng, FG, Oba, S, Garde, S, Sininger, Y, Starr, A. Temporal and speech processing deficits in auditory neuropathy. NeuroReport 1999;10:3439–445CrossRefGoogle ScholarPubMed
13Kraus, N, Bradlow, AR, Cheatham, MA, Cunningham, J, King, CD, Koch, CD. Consequences of neural asynchrony: a case of auditory neuropathy. J Assoc Res Otolaryngol 2000;1:33–45CrossRefGoogle ScholarPubMed
14Berlin, CI, Hood, LJ, Hurely, A, Wen, H. Hair Cells and Hearing Aids. San Diego: Singular Publishing, 1996Google Scholar
15Plomp, R. The negative effect of amplitude compression in multichannel hearing aids in the light of the modulation-transfer function. J Acoust Soc Am 1988;83:2322–7CrossRefGoogle ScholarPubMed
16Kraus, N. Auditory Neuropathy: an Historical and Current Perspective. Canada: Singular Publishing, 2001Google Scholar
17Buss, E, Labadie, RF, Brown, CJ, Gross, AJ, Grose, JH, Pillsbury, HC. Outcome of cochlear implantation in pediatric auditory neuropathy. Otol Neurotol 2002;23:328–32CrossRefGoogle ScholarPubMed
18Miyamoto, RT, Kirk, KI, Renshaw, J, Hussain, D. Cochlear implantation in auditory neuropathy. Laryngoscope 1999;109:181–5CrossRefGoogle ScholarPubMed
19Peterson, A, Shallop, J, Driscoll, C, Breneman, A, Babb, J, Stoeckel, R et al. Outcomes of cochlear implantation in children with auditory neuropathy. J Am Acad Audiol 2003;14:188–201Google ScholarPubMed
20Shallop, JK, Peterson, A, Facer, GW, Fabry, LB, Driscoll, CL. Cochlear implants in five cases of auditory neuropathy: post operative findings and progress. Laryngoscope 2001;111:555–62CrossRefGoogle Scholar
21Trautwein, PG, Sininger, YS, Nelson, R. Cochlear implantation of auditory nueropathy. J Am Acad Audiol 1995;11:309–15Google Scholar
22Vandana. Speech identification test in Kannada, Unpublished independent project. Mysore: University of Mysore; 1998Google Scholar
23Kumar, UA, Vanaja, CS. Functioning of olivocochlear bundle and speech perception in noise. Ear Hear 2004;25:142–6CrossRefGoogle ScholarPubMed
24Jayaram, M. Distribution of stuttering in sentences: relationship to sentence length and clause position. J Speech Hear Res 1984;27:38–42CrossRefGoogle ScholarPubMed
25Boersm & Weenink. Praat: Doing Phonetics by Computer (version 4.2.31) 2005, retrieved 4 August 2005 from http://www.praat.org/Google Scholar
26Moulines, E, Lorche, J. Non parameric techniques for pitch scale and time scale modification of speech. Speech Commun 1995;16:175–205CrossRefGoogle Scholar
27Tyler, RS, Summerfield, Q, Wood, EJ, Farnandes, MA. Psychoacoustic and phonetic temporal processing in normal and hearing impaired listeners. J Acoust Soc Am 1982;72:740–52CrossRefGoogle ScholarPubMed
28Wang, MD, Bilger, RC. Consonsant confusions in noise: a study of perceptual features. J Acoust Soc Am 1973;54:1248–66CrossRefGoogle ScholarPubMed
29Miller, AJ, Nicely, PE. An analysis of perceptual confusions among some English consonants. Journal of Acoustical Society of America 1955;27:338–52CrossRefGoogle Scholar
30Tallal, P, Miller, ST, Bedi, G, Byma, G, Wang, X, Nagarajan, S et al. Language comprehension in language learning impaired children improved with acoustically modified speech. Science 1996;271:81–4CrossRefGoogle ScholarPubMed
31Tallal, P, Piercy, M. Developmental aphasia: the perception of brief vowels and extended stop consonants. Neuropsychologia 1975;13:69–74CrossRefGoogle ScholarPubMed