Auditory and cognitive factors in speech and environmental sound perception of cochlear implant listeners

2012 ◽  
Vol 131 (4) ◽  
pp. 3515-3515
Author(s):  
Valeriy Shafiro ◽  
Stanley Sheft ◽  
Sejal Kuvadia ◽  
Brain Gygi ◽  
Kim Ho
2015 ◽  
Vol 58 (2) ◽  
pp. 509-519 ◽  
Author(s):  
Valeriy Shafiro ◽  
Stanley Sheft ◽  
Sejal Kuvadia ◽  
Brian Gygi

Purpose The study investigated the effect of a short computer-based environmental sound training regimen on the perception of environmental sounds and speech in experienced cochlear implant (CI) patients. Method Fourteen CI patients with the average of 5 years of CI experience participated. The protocol consisted of 2 pretests, 1 week apart, followed by 4 environmental sound training sessions conducted on separate days in 1 week, and concluded with 2 posttest sessions, separated by another week without training. Each testing session included an environmental sound test, which consisted of 40 familiar everyday sounds, each represented by 4 different tokens, as well as the Consonant Nucleus Consonant (CNC) word test, and Revised Speech Perception in Noise (SPIN-R) sentence test. Results Environmental sounds scores were lower than for either of the speech tests. Following training, there was a significant average improvement of 15.8 points in environmental sound perception, which persisted 1 week later after training was discontinued. No significant improvements were observed for either speech test. Conclusions The findings demonstrate that environmental sound perception, which remains problematic even for experienced CI patients, can be improved with a home-based computer training regimen. Such computer-based training may thus provide an effective low-cost approach to rehabilitation for CI users, and potentially, other hearing impaired populations.


1989 ◽  
Vol 32 (4) ◽  
pp. 887-911 ◽  
Author(s):  
Richard S. Tyler ◽  
Brian C. J. Moore ◽  
Francis K. Kuk

The main purpose of this study was to provide an independent corroboration of open-set word recognition in some of the better cochlear-implant patients. These included the Chorimac, Nucleus (one group from the U.S.A. and one group from Hannover, Germany), Symbion, Duren/Cologne and 3M/Vienna implants. Three experiments are reported: (1) word recognition in word lists and in sentences; (2) environmental sound perception, and (3) gap detection. On word recognition, the scores of 6 Chorimac patients averaged 2.5% words and 0.7% words in sentences correct in the French tests. In the German tests, the scores averaged 17% words and 10% words in sentences for 10 Duren/Cologne patients, 15% words and 16% words in sentences for 9 3M/Vienna patients, and 10% words and 16% words in sentences (3% to 26%) for 10 Nucleus/Hannover patients. In the English tests, the scores averaged 11% words and 29.6% words in sentences for l0 Nucleus-U.S.A. patients, and 13.7% words and 35.7% words in sentences for the 9 Symbion patients. The ability to recognize recorded environmental sounds was measured with a closed set of 18 sounds. Performance averaged 23% correct for Chorimac patients, 41% correct for 3M/Vienna patients, 44% correct for Nucleus/Hannover patients, 21% correct for Duren/Cologne patients, 58% correct for Nucleus/U.S.A. patients, and 83% correct for Symbion patients. A multidimensional scaling analysis suggested that patients were, in part, utilizing information about the envelope and about the periodic/aperiodic nature of some of the sounds. Gap detection thresholds with a one-octave wide noise centered at 500 Hz varied widely among patients. Typically, patients with gap thresholds less than 40 ms showed a wide range of performance on speech perception tasks, whereas patients with gap-detection thresholds greater than 40 ms showed poor word recognition skills.


2020 ◽  
Vol 148 (4) ◽  
pp. 2710-2710
Author(s):  
Katie I. Swail ◽  
Valeriy Shafiro ◽  
Kara J. Vasil ◽  
Aaron C. Moberly ◽  
Jasper Oh ◽  
...  

2004 ◽  
Vol 5 (S1) ◽  
pp. 90-92
Author(s):  
Kimitaka Kaga ◽  
Yusuke Akamatsu ◽  
Erika Ogata ◽  
Masae Shiroma ◽  
Sinichi Ishimoto ◽  
...  

2011 ◽  
Vol 125 (7) ◽  
pp. 741-744 ◽  
Author(s):  
Y-M Feng ◽  
Y-Q Wu ◽  
H-Q Zhou ◽  
H-B Shi

AbstractObjective:We report a patient who underwent cochlear implantation in an ear with long-term deafness, after an acoustic neuroma had been removed surgically from the other, hitherto good ear and the cochlear nerve had subsequently been resected to relieve severe tinnitus.Method:Case report.Results:The patient could not tolerate the cochlear implant, because of a moderate headache due to the stimulation level necessary for environmental sound discrimination.Conclusion:Cochlear implantation in patients with long-term deafness should be considered carefully, even if deafness is monaural.


2010 ◽  
Vol 2010 ◽  
pp. 1-26 ◽  
Author(s):  
Nicolas Misdariis ◽  
Antoine Minard ◽  
Patrick Susini ◽  
Guillaume Lemaitre ◽  
Stephen McAdams ◽  
...  

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