Noise improves suprathreshold discrimination in cochlear-implant listeners
| Autor: | Shahdad E. Behnam, Fan-Gang Zeng |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Adult
medicine.medical_specialty Stochastic resonance Hearing loss Loudness Perception Speech recognition medicine.medical_treatment Audiology behavioral disciplines and activities Vowel Cochlear implant medicine Humans Noise level Aged White noise Sensory Systems Noise Cochlear Implants Speech Perception Harmonic sense organs medicine.symptom Psychology psychological phenomena and processes |
| Zdroj: | Hearing Research. 186:91-93 |
| ISSN: | 0378-5955 |
| DOI: | 10.1016/s0378-5955(03)00307-1 |
| Popis: | The present study aimed to examine the effect of noise on vowel-like suprathreshold discrimination in cochlear-implant listeners. The task was to detect an increment in level at the middle harmonic (400 Hz) in the background of a seven-harmonic complex from 100 to 700 Hz in 100-Hz steps. The task was performed in the absence (control) and presence of a white noise presented over a 20-35-dB range from inaudible to loud. The present result shows that discrimination of suprathreshold harmonic stimuli was significantly enhanced, particularly at the soft signal level, with suprathreshold noise. This result suggests that tuning of the noise level is required to optimize performance of different tasks in cochlear implants. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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