Adaptation by a cochlear-implant patient to upward shifts in the frequency representation of speech

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TitleAdaptation by a cochlear-implant patient to upward shifts in the frequency representation of speech
Publication TypeJournal Article
Year of Publication2003
AuthorsDorman, M. F., and D. R. Ketten
JournalEar and Hearing
Volume24
Start Page457
Issue5
Pagination457-460
Date Published11/2003
Type of ArticleScientific
Keywordsbasal shift, basilar membrane, cochlear implant, frequency shift
Abstract

The purpose of this project was to assess the degree to which a patient, after 1 wk of experience, could adapt to 3.2-mm and 6.8-mm basal shifts in the representation of speech. Only small deficits in performance were found after practice after the 3.2-mm shift. After practice after the 6.9-mm shift, scores on tests that emphasized amplitude envelope cues returned to baseline levels. Scores on vowel and sentence tests that emphasized frequency-based cues remained poor. Scores for "place," however, showed some recovery. Vowel recognition may be the limiting factor in recognizing basally shifted speech.

DOI10.1097/01.AUD.0000090438.20404.D9
Refereed DesignationRefereed