Associations and Dissociations Between Psychoacoustic Abilities and Speech Perception in Adolescents With Severe-to-Profound Hearing Loss PurposeTo clarify the relationship between psychoacoustic capabilities and speech perception in adolescents with severe-to-profound hearing loss (SPHL).MethodTwenty-four adolescents with SPHL and young adults with normal hearing were assessed with psychoacoustic and speech perception tests. The psychoacoustic tests included gap detection (GD), difference limen for frequency, and psychoacoustic-tuning curves. To assess ... Article
Article  |   August 01, 2009
Associations and Dissociations Between Psychoacoustic Abilities and Speech Perception in Adolescents With Severe-to-Profound Hearing Loss
 
Author Affiliations & Notes
  • Liat Kishon-Rabin
    Tel-Aviv University, Tel-Hashomer, Israel
  • Osnat Segal
    Tel-Aviv University, Tel-Hashomer, Israel
  • Daniel Algom
    Tel-Aviv University, Tel-Hashomer, Israel
  • Contact author: Liat Kishon-Rabin, Communication Disorders Department, Sackler Faculty of Medicine, Tel Aviv University, Israel. Please address written correspondence to Liat Kishon-Rabin, Communication Disorders Department, Sheba Medical Center, Tel-Hashomer, Israel 52621. E-mail: lrabin@post.tau.ac.il.
Article Information
Hearing & Speech Perception / Acoustics / Hearing Disorders / Speech, Voice & Prosody / Hearing
Article   |   August 01, 2009
Associations and Dissociations Between Psychoacoustic Abilities and Speech Perception in Adolescents With Severe-to-Profound Hearing Loss
Journal of Speech, Language, and Hearing Research, August 2009, Vol. 52, 956-972. doi:10.1044/1092-4388(2008/07-0072)
History: Received March 29, 2007 , Revised September 19, 2007 , Accepted October 31, 2008
 
Journal of Speech, Language, and Hearing Research, August 2009, Vol. 52, 956-972. doi:10.1044/1092-4388(2008/07-0072)
History: Received March 29, 2007; Revised September 19, 2007; Accepted October 31, 2008
Web of Science® Times Cited: 5

PurposeTo clarify the relationship between psychoacoustic capabilities and speech perception in adolescents with severe-to-profound hearing loss (SPHL).

MethodTwenty-four adolescents with SPHL and young adults with normal hearing were assessed with psychoacoustic and speech perception tests. The psychoacoustic tests included gap detection (GD), difference limen for frequency, and psychoacoustic-tuning curves. To assess the perception of words that differ in spectral and temporal cues, the speech tests included the Hebrew Early Speech Perception test and the Hebrew Speech Pattern Contrast test (L. Kishon-Rabin et al., 2002). All tests were conducted for the listeners with normal hearing at low and high presentation levels and for the participants with SPHL at 20 dB SL.

ResultsOnly GD thresholds were comparable across the 2 groups at similar presentation levels. Psychoacoustic performance was poorer in the group with SPHL, but only selected tests were correlated with speech perception. Poor GD was associated with pattern perception, 1-syllable word identification, and final voicing subtests.

ConclusionsSpeech perception performance in adolescents with SPHL could not be predicted solely on the basis of spectral and temporal capabilities of the auditory system. However, when the GD threshold was greater than 40 ms, speech perception skills were predictable by psychoacoustic abilities.

Acknowledgments
The authors gratefully acknowledge Emma Sachratov for her technical support, Esther Shabtai for assistance in data analyses, and the hearing and hearing-impaired adolescents at the Yahud High School.
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