NDLI: Acoustic and semantic enhancements for children with cochlear implants.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Smiljanic, Rajka Sladen, Douglas
Description	Country affiliation: United States Author Affiliation: Smiljanic R ( University of Texas, Austin, TX, USA. rajka@austin.utexas.edu)
Abstract	PURPOSE: In this study, the authors examined how signal clarity interacts with the use of sentence context information in determining speech-in-noise recognition for children with cochlear implants and children with normal hearing. METHOD: One hundred and twenty sentences in which the final word varied in predictability (high vs. low semantic context) were produced in conversational and clear speech. Nine children with cochlear implants and 9 children with normal hearing completed the sentence-in-noise listening tests and a standardized language measure. RESULTS: Word recognition in noise improved significantly for both groups of children for high-predictability sentences in clear speech. Children with normal hearing benefited more from each source of information compared with children with cochlear implants. There was a significant correlation between more developed language skills and the ability to use contextual enhancements. The smaller context gain in clear speech for children with cochlear implants is in accord with the effortfulness hypothesis (McCoy et al., 2005) and points to the cumulative effects of noise throughout the processing system. CONCLUSION: Modifications of the speech signal and the context of the utterances through changes in the talker output hold substantial promise as a communication enhancement technique for both children with cochlear implants and children with normal hearing.
File Format	HTM / HTML
ISSN	10924388
Issue Number	4
Volume Number	56
e-ISSN	15589102
Journal	Journal of Speech Language and Hearing Research
Language	English
Publisher	American Speech-Language-Hearing Association
Publisher Date	2013-08-01
Publisher Place	United States
Access Restriction	Subscribed
Subject Keyword	Discipline Audiology Cochlear Implantation Cochlear Implants Deafness Therapy Semantics Speech Perception Acoustic Stimulation Adult Auditory Threshold Child Child, Preschool Female Hearing Humans Male Noise Signal-to-noise Ratio Speech Discrimination Tests Journal Article
Content Type	Text
Resource Type	Article
Subject	Medicine Speech and Hearing Linguistics and Language

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