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Lyxell B, Andersson J, Arlinger S, et al. Verbal information-processing capabilities and cochlear implants: implications for preoperative predictors of speech understanding. J Deaf Stud Deaf Educ. 1996;1(3):190-201doi: 10.1093/oxfordjournals.deafed.a014294.
Lyxell, B., Andersson, J., Arlinger, S., Bredberg, G., Harder, H., & Ronnberg, J. (1996). Verbal information-processing capabilities and cochlear implants: implications for preoperative predictors of speech understanding. Journal of deaf studies and deaf education, 1(3), 190-201. https://doi.org/10.1093/oxfordjournals.deafed.a014294
Lyxell, B, et al. "Verbal information-processing capabilities and cochlear implants: implications for preoperative predictors of speech understanding." Journal of deaf studies and deaf education vol. 1,3 (1996): 190-201. doi: https://doi.org/10.1093/oxfordjournals.deafed.a014294
Lyxell B, Andersson J, Arlinger S, Bredberg G, Harder H, Ronnberg J. Verbal information-processing capabilities and cochlear implants: implications for preoperative predictors of speech understanding. J Deaf Stud Deaf Educ. 1996;1(3):190-201. doi: 10.1093/oxfordjournals.deafed.a014294. PMID: 15579823.
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J Deaf Stud Deaf Educ. 1996;1(3):190-201. doi: 10.1093/oxfordjournals.deafed.a014294.

Verbal information-processing capabilities and cochlear implants: implications for preoperative predictors of speech understanding.

Journal of deaf studies and deaf education

B Lyxell, J Andersson, S Arlinger, G Bredberg, H Harder, J Ronnberg

Affiliations

  1. Linkoping University, Linkoping, Sweden.

PMID: 15579823 DOI: 10.1093/oxfordjournals.deafed.a014294

Abstract

In this study, we examined preoperative verbal cognitive capacity in 11 deafened adults who were cochlear implant candidates and reexamined level of speech understanding after 6-8 months' experience with the implant. Verbal cognitive performance in the implant group was compared in a group of normal hearing subjects and in nonimplanted group of deafened adults. The three groups performed on par with each other with an exception: The individuals in the cochlear implant group and the nonimplanted group of deafened adults performed significatly worse than those of normal hearing in tasks in which use of internal speech is a key feature (i.e., rhyme judgement and lexical decision tasks). Postoperative observations of the implanted individuals' level of speech understanding suggest that it is possible to predict the level of speech understanding by means of a properative cognitive assessment. The characteristics of three verbal cognitive abilities prove to be critical indicators of 6 - 8 months' postoperative outcome: internal speech functioning, speed of verval information processing, and working memory capacity - the first factor proved the most decisive. We discuss the results with respect to direct versus indirect predictors of outcomes from cochlear implant operations and the effect of auditory deprivation on deafened adults' capability to process auditory information.

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