1 / 15

Fricative Perception in Normal-Hearing and Hearing-Impaired Children and Adults

Fricative Perception in Normal-Hearing and Hearing-Impaired Children and Adults. Andrea Pittman, Ph.D. Patricia Stelmachowicz, Ph.D. Boys Town National Research Hospital. Funded by a grant from NIH. Hearing-Impaired Adults. Normal-Hearing Children. Experience & Hearing Loss.

raisie
Télécharger la présentation

Fricative Perception in Normal-Hearing and Hearing-Impaired Children and Adults

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Fricative Perception in Normal-Hearing and Hearing-Impaired Children and Adults Andrea Pittman, Ph.D. Patricia Stelmachowicz, Ph.D. Boys Town National Research Hospital Funded by a grant from NIH

  2. Hearing-Impaired Adults Normal-Hearing Children Experience & Hearing Loss Normal-Hearing Adults Hearing-Impaired Children

  3. Methods Normal Hearing 11 Adults mean = 32:5 yrs. (22-42) 11 Children mean = 10:1 yrs. (8-11) Hearing Impaired 11 Adults mean = 61:11 yrs. (54-69) 11 Children mean = 10:3 yrs. (8-11)

  4. Stimuli Four nonsense syllables /us/, /uS/, /uf/, and /uT/ Three speakers an adult male an adult female a child Three segments vowel transition fricative Random attenuation

  5. Stimuli Four nonsense syllables /us/, /uS/, /uf/, and /uT/ Three speakers an adult male an adult female a child Three segments vowel transition fricative Random attenuation

  6. Short Term Audibility Index Audibility Index

  7. /us/ Adults Children Hearing Impaired Normal Hearing Hearing Impaired Normal Hearing Short-Term Audibility

  8. Performance-STA FunctionsFricative of /us/

  9. Performance-STA FunctionsFricative of /us/

  10. Performance-STA FunctionsFricative of /us/

  11. /uS/ Adults Children Normal Hearing Hearing Impaired Hearing Impaired Normal Hearing Short-Term Audibility

  12. Performance-STA FunctionsFricativeof /uS/

  13. Performance-STA FunctionsFricative of /uS/

  14. Performance-STA FunctionsFricative of /uS/

  15. Conclusions • The hearing-impaired groups required lower audibility than the normal-hearing groups to achieve the same level of performance. • short term vs. long term audibility • abnormal growth of response • An age effect was observed for /uS/ for the NH groups but not for the HI groups. • 8-year olds vs. younger children • influence of rehabilitative services

More Related