2009 Fiscal Year Final Research Report
Effects of audio-visual bimodal training on the perception of the cochlear implant speech simulated by the noise vocoded speech sound
| Project/Area Number |
19591954
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Otorhinolaryngology
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| Research Institution | Tohoku University |
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Principal Investigator |
KAWASE Tetsuaki Tohoku University, 大学院・医工学研究科, 教授 (50169728)
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| Co-Investigator(Kenkyū-buntansha) |
SAKAMOTO Shuichi 東北大学, 電気通信研究所, 助教 (60332524)
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| Co-Investigator(Renkei-kenkyūsha) |
KOBAYASHI Toshimitsu 東北大学, 大学院・医学系研究科, 教授 (80133958)
NAKASATO Nobukazu 東北大学, 大学院・医学系研究科, 教授 (80207753)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 耳鼻咽喉科学 |
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| Research Abstract |
Effects of auditory training with bimodal audio-visual stimuli on mono-modal aural speech intelligibility were examined in subjects with normal hearing using highly degraded noise-vocoded speech sound. Visual cue simultaneously presented with auditory stimuli during the training session significantly improved auditory speech intelligibility not only for words used in the training session but also untrained words, when compared to the auditory training using only auditory stimuli. Visual information is generally considered to complement insufficient speech information conveyed by the auditory system during audio-visual speech perception. However, the present results revealed another beneficial effect of audio-visual training, that the visual cue enhances the auditory adaptation process to the degraded new speech sound which is different from those given in during bimodal training.
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