인공와우를 통한 말지각과 반대편 귀 사용 효과에 대한 최근 연구 고찰 = Speech Perception and Benefits from the Contralateral Device of Cochlear Implant Users: A Review of Recent Literature

다국어 초록 (Multilingual Abstract)

The goal of cochlear implants restores functional hearing by transmitting electrical pulses to auditory nerves and improves speech perception. Although current cochlear implant users showed greatly improved sentence recognition scores in a quiet environment, the issues of understanding speech in a noisy environment and listening to music are still challenging for them. Limitations of spectral and temporal resolution are thought to be related to these difficulties of cochlear implant users. As one of the approaches to resolve these challenging issues, benefits from the contralateral device of cochlear implant users were introduced. Two different types of binaural placements, bilateral and bimodal hearing, were continuously increased and they demonstrated some amounts of speech perception benefits. Bilateral hearing improves sound localization and speech perception in noise mostly due to the benefits from head shadow and redundancy effects. On the other hand, bimodal benefits are delivered by using acoustic low frequency information which is not represented in electric stimulation via cochlear implants. A review of the literature related to these topics was addressed.

참고문헌 (Reference)

1 Donaldson, G. S., "Within-subjects comparison of the HiRes and Fidelity120 speech processing strategies: Speech perception and its relation to place-pitch sensitivity" 32 (32): 238-250, 2011

2 Fitzpatrick, E. M., "Users’ experience of a cochlear implant combined with a hearing aid" 48 (48): 172-182, 2009

3 Wilson, B. S., "Two new directions in speech processor design for cochlear implants" 26 (26): 73S-81S, 2005

4 Dorman, M. F., "The benefits of combining acoustic and electric stimulation for the recognition of speech, voice and melodies" 13 (13): 105-112, 2008

5 Kong, Y. Y., "Temporal pitch perception at high rates in cochlear implants" 127 (127): 3114-3123, 2010

6 Rosen, S., "Temporal information in speech: acoustic, auditory and linguistic aspects" 336 (336): 367-373, 1992

7 Shannon, R. V., "Speech recognition with primarily temporal cues" 270 (270): 303-304, 1995

8 Gifford, R. H., "Speech recognition materials and ceiling effects: Considerations for cochlear implant programs" 13 (13): 193-205, 2008

9 Turner, C. W., "Speech recognition in noise for cochlear implant listeners: Benefits of residual acoustic hearing" 115 (115): 1729-1735, 2004

10 Friesen, L. M., "Speech recognition in noise as a function of the number of spectral channels: Comparison of acoustic hearing and cochlear implants" 110 : 1150-1163, 2001

11 Mok, M., "Speech perception for adults who use hearing aids in conjunction with cochlear implants in opposite ears" 49 (49): 338-351, 2006

12 Kong, Y. Y., "Speech and melody recognition in binaurally combined acoustic and electric hearing" 117 (117): 1351-1361, 2005

13 Green, T., "Spectral and temporal cues to pitch in noise-excited vocoder simulations of continuous-interleaved-sampling cochlear implants" 112 : 2155-2164, 2002

14 Firszt, J. B., "Restoring hearing symmetry with two cochlear implants or one cochlear implant and a contralateral hearing aid" 45 (45): 749-767, 2008

15 Burns, E. M., "Played-again SAM; Further observations on the pitch of amplitude -modulated noise" 70 : 1655-1660, 1981

16 Spahr, A. J., "Performance of patients using different cochlear implant systems: Effects of input dynamic range" 28 (28): 260-275, 2007

17 Kong, Y. Y., "Music perception with temporal cues in acoustic and electric hearing" 25 (25): 173-185, 2004

18 Gfeller, K. E., "Music perception with cochlear implants and residual hearing" 11 (11): 12-15, 2006

19 Zhang, T., "Information from the voice fundamental frequency (F0) region accounts for the majority of the benefit when acoustic stimulation is added to electric stimulation" 31 (31): 63-69, 2010

20 Carroll, J., "Fundamental frequency is critical to speech perception in noise in combined acoustic and electric hearing" 130 (130): 2054-2062, 2011

21 Gifford, R. H., "Evidence for the expansion of adult cochlear implant candidacy" 31 (31): 186-194, 2010

22 von Ilberg, C. A., "Electric-acoustic stimulation of the auditory system: A review of the first decade" 16 (16): 1-30, 2011

23 Srinivasan, A. G., "Current focusing sharpens local peaks of excitation in cochlear implant stimulation" 270 (270): 89-100, 2010

24 Kong, Y. Y., "Cross-frequency integration for consonant and vowel identification in bimodal hearing" 54 (54): 959-980, 2011

25 Dorman, M. F., "Combining acoustic and electric stimulation in the service of speech recognition" 49 (49): 912-919, 2010

26 Moore, B. C., "Coding of sounds in the auditory system and its relevance to signal processing and coding in cochlear implants" 24 (24): 243-254, 2003

27 Wilson, B. S., "Cochlear implants: A remarkable past and brilliant future" 242 (242): 3-21, 2008

28 Muller, J., "Clinical trial results with the MED-EL fine structure processing coding strategy in experienced cochlear implant users" 74 (74): 185-198, 2012

29 Yoon, Y. S., "Clinical selection criteria for a second cochlear implant for bimodal listeners" 33 (33): 1161-1168, 2012

30 Smith, Z. M., "Chimaeric sounds reveal dichotomies in auditory perception" 416 (416): 87-90, 2002

31 Ching, T. Y., "Binaural-bimodal fitting or bilateral implantation for managing severe to profound deafness: A review" 11 (11): 161-192, 2007

32 Gorden, K. A., "Benefits of short interimplant delays in children receiving bilateral cochlear implants" 30 (30): 319-331, 2009

33 McDermott, H., "Benefits of combined acoustic and electric hearing for music and pitch perception" 32 (32): 103-114, 2011

34 Dunn, C. C., "Benefit of wearing a hearing aid on the unimplanted ear in adult users of a cochlear implant" 48 (48): 668-680, 2005

35 Donaldson, G. S., "BKB-SIN and ANL predict perceived communication ability in cochlear implant users" 30 : 401-410, 2009

36 Gfeller, K., "Accuracy of cochlear implant recipients on pitch perception, melody recognition, and speech reception in noise" 28 (28): 412-423, 2007

37 Li, N., "A glimpsing account for the benefit of simulated combined acoustic and electric hearing" 123 (123): 2287-2294, 2008