Research article summary (published 30 Oct 1987):

Speech perception using a two-formant 22-electrode cochlear prosthesis in quiet and in noise.

Full Abstract

A new speech-processing strategy has been developed for the Cochlear Pty. Ltd. 22-electrode cochlear prosthesis which codes an estimate of the first formant frequency in addition to the amplitude, voice pitch and second formant frequencies. Two groups of cochlear implant patients were tested 3 months after implant surgery, one group (n = 13) having used the old (F0F2) processing strategy and the other (n = 9) having used the new (F0F1F2) strategy. All patients underwent similar postoperative training programs. Results indicated significantly improved speech recognition for the F0F1F2 group, particularly on open set tests with audition alone. Additional testing with a smaller group of patients was carried out with competing noise (speech babble). Results for a closed set spondee test showed that patient performance was significantly degraded at a signal-to-noise ratio of 10 dB when using the F0F2 strategy, but was not significantly affected with the F0F1F2 strategy.

Author information

Author/s: Dowell, R C (RC); Seligman, P M (PM); Blamey, P J (PJ); Clark, G M (GM);

Affiliation: Department of Otolaryngology, University of Melbourne, Parkville, Australia.

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: Acta oto-laryngologica (Acta Otolaryngol), published in SWEDEN. (Language: eng)

Reference: -1987 Nov-Dec; vol 104 (issue 5-6) : pp 439-46

Dates: Created 1988/02/29; Completed 1988/02/29; Revised 2006/11/15;

PMID: 3434265, status: MEDLINE (last retrieved date: 2/18/2009)

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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MeSH headings (categories)

This article was linked to the MeSH Headings (categories) shown below.

Adult Cochlear Implants Deafness - rehabilitation; surgery Humans Lipreading

Lipreading Middle Aged Noise Postoperative Period Speech Perception

Note: Bold headings indicate primary MeSH headings or qualifiers.

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