This project will assess the speech, language, and sign skills of young cochlear implant users, and the complex inter-relationships that exist between abilities. In a new line of inquiry, we will examine the language development of children, and compare patterns of improvement to those of normal hearing children. We will relate pre-implant language performance measures and post-implant language patterns to post-implant gains in speech and listening. Using a multidimensional test battery, we will study speech production and determine whether gains continue and/or plateau after prolonged implant experience, and parse out factors that account for variability in performance. The relationship between speech production and speech perception performance will be studied, and these findings will be related to models of auditory feedback. We will also conduct a device- on/off experiment to further assess how on-line feedback affects the moment-to-moment regulation of articulatory behavior. A set of investigations will address the sign skills of children and relate them to emerging speech and language performance, and word coding and recall. The results of these experiments will illuminate processes of sign acquisition, and address concerns of members and advocates of the Deaf Community. Finally, a clinical study will be conducted in which we will assess whether measures of mismatched negativity can be used to select appropriate goals for auditory training. These results potentially will have widespread implications for remediation strategies for hard-of- hearing children.

Project Start
Project End
Budget Start
Budget End
Support Year
12
Fiscal Year
1996
Total Cost
Indirect Cost
Wu, Yu-Hsiang; Stangl, Elizabeth; Chipara, Octav et al. (2018) Characteristics of Real-World Signal to Noise Ratios and Speech Listening Situations of Older Adults With Mild to Moderate Hearing Loss. Ear Hear 39:293-304
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Kim, Jeong-Seo; Tejani, Viral D; Abbas, Paul J et al. (2018) Postoperative Electrocochleography from Hybrid Cochlear Implant users: An Alternative Analysis Procedure. Hear Res 370:304-315
Goman, Adele M; Dunn, Camille C; Gantz, Bruce J et al. (2018) PREVALENCE OF POTENTIAL HYBRID AND CONVENTIONAL COCHLEAR IMPLANT CANDIDATES BASED ON AUDIOMETRIC PROFILE. Otol Neurotol 39:515-517
Bonnard, Damien; Schwalje, Adam; Gantz, Bruce et al. (2018) Electric and acoustic harmonic integration predicts speech-in-noise performance in hybrid cochlear implant users. Hear Res 367:223-230
Pimperton, Hannah; Walker, Elizabeth A (2018) Word Learning in Children With Cochlear Implants: Examining Performance Relative to Hearing Peers and Relations With Age at Implantation. Ear Hear 39:980-991
McMurray, Bob; Ellis, Tyler P; Apfelbaum, Keith S (2018) How Do You Deal With Uncertainty? Cochlear Implant Users Differ in the Dynamics of Lexical Processing of Noncanonical Inputs. Ear Hear :
McMurray, Bob; Danelz, Ani; Rigler, Hannah et al. (2018) Speech categorization develops slowly through adolescence. Dev Psychol 54:1472-1491
Klein, Kelsey E; Wu, Yu-Hsiang; Stangl, Elizabeth et al. (2018) Using a Digital Language Processor to Quantify the Auditory Environment and the Effect of Hearing Aids for Adults with Hearing Loss. J Am Acad Audiol 29:279-291
Roembke, Tanja C; Wiggs, Kelsey K; McMurray, Bob (2018) Symbolic flexibility during unsupervised word learning in children and adults. J Exp Child Psychol 175:17-36

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