학술논문
Perceptual Loudness Growth in Cochlear Implant Users
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- 영문명
- 발행기관
- 한국청각언어재활학회
- 저자명
- Sungmin Lee Soo Jung Lee
- 간행물 정보
- 『Audiology and Speech Research』Audiology and Speech Research 제18권 제2호, 109~117쪽, 전체 9쪽
- 주제분류
- 사회과학 > 교육학
- 파일형태
- 발행일자
- 2022.04.30
4,000원
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국문 초록
영문 초록
Purpose: Despite a growing number of cochlear implant (CI) studies, little attention has been given to loudness perception. The overall purpose of this study is to obtain the perceptual loudness growth from CI users and systematically investigate it with other relevant variables. Methods: Fourteen CI users and 14 normal hearing (NH) adults participated in this study. Loudness growth functions were obtained using three warble tones presented at 500 Hz, 1 kHz, and 4 kHz. Sentence recognition tests were implemented under favorable and adverse noise conditions. Mapping parameters including T-level, C-level, and electrical dynamic range were analyzed in conjunction with outcomes from the loudness growth. Results: The loudness growth curves for CI group were sharper than those for NH group. CI group showed a narrower acoustic dynamic range than NH group. There was no significant relationship between acoustic dynamic range and electrical dynamic range for CI users. Sentence recognition scores in adverse noise conditions were associated with electrical dynamic range in CI users. In NH group, a significant positive relationship was found between sentence recognition scores in adverse condition and acoustic dynamic range. Conclusion: This study showed that the perceptual loudness growth of CI users is not identical to that of NH adults, due to the unique way of signal processing mechanisms. Acoustic dynamic range for CI users seems affected by gain control algorithms. The adjusting mapping parameters associated with loudness may improve speech perception performance regardless of the dynamic range of CIs.
목차
INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSIONS
해당간행물 수록 논문
- A Study on Visual Cognitiveness through Cartoon in Adults with Mild Intellectual Disabilities
- Development of Korean Music Rehabilitation Program for Persons with Hearing Loss
- Effects of Preschool Speech Sound Disorder on School Age Activities · Participation
- Perceptual Loudness Growth in Cochlear Implant Users
- Changes in Speech Recognition Scores and Sound Quality According to Gain Adjustment in High Frequency Bands
- A Study on Social Support of the Elderly with Noral Hearing and Elderly Wearing Hearing Aids
- Hearing Status and Noise Exposure Levels of Workers at a Laundry Plant in Sri Lanka
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