Document Detail

The use of a temporary extracochlear electrode in preoperative testing of permanent implant candidates.
MedLine Citation:
PMID:  3563398     Owner:  NLM     Status:  MEDLINE    
This paper describes hearing and speech perception in 9 post-lingually deaf adults fitted with a temporary single electrode, surgically positioned close to the round window niche. After baseline testing, unaided and aided binaurally with the high-power Phonic Ear PE 845, each subject was admitted to hospital for a period of 7 days. During each test session, stimuli were presented directly to the electrode lead by means of an isolation unit. Current thresholds, upper tolerable limits and gap detection were measured for various acoustical waveforms and stimulus frequencies. A laryngograph was used to test the discrimination of prelinguistic and suprasegmental speech features. The results indicated that the prosthesis could provide acoustic sensations of loudness, pitch and duration that changed with stimulus waveform, level of current and frequency, and a gap threshold less than 50 msec. Lipreading appeared to be a necessary adjunct for consonant discrimination.
S M Abel; S M Tse; H Kunov; J Nedzelski; R V Harrison
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Scandinavian audiology     Volume:  15     ISSN:  0105-0397     ISO Abbreviation:  Scand Audiol     Publication Date:  1986  
Date Detail:
Created Date:  1987-05-20     Completed Date:  1987-05-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0342230     Medline TA:  Scand Audiol     Country:  SWEDEN    
Other Details:
Languages:  eng     Pagination:  197-205     Citation Subset:  IM    
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MeSH Terms
Auditory Threshold
Cochlear Implants*
Deafness / surgery
Hearing Aids
Middle Aged
Pitch Perception
Speech Perception

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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