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- Title
The effect of aging and the high-frequency auditory threshold on speech-evoked mismatch negativity in a noisy background.
- Authors
Junming Chen; Suijun Chen; Yiqing Zheng; Yongkang Ou
- Abstract
Objectives: To evaluate the effect of aging and high frequency hearing loss on speech-related mismatch negativity in noisy backgrounds.The possible mechanisms of central auditory processing dysfunction in the elderly were investigated. Material and methods: 50 people aged 61-80 years old and 50 younger adults aged 21-40 years old were recruited. A Speech discrimination score (SDS) and a speechevoked MMN under white noise were recorded. Results: Speech-evoked MMN latency was longer in the aged group. SDS and speech-evoked MMN latency were negatively correlated. Age and speech-evoked MMN latency were positively correlated, as were the pure-tone hearing thresholds and speech-evoked MMN. Conclusions: In elderly subjects, the function of pre-attentive central auditory processing changes. Increasing age and high-frequency hearing thresholds create weakened synergy in neurons, which may be a cause of central auditory processing disorders in elderly.
- Subjects
AGING; AUDIOMETRY; AUDITORY evoked response; HEARING disorders; HEARING levels; SPEECH perception; WORD deafness
- Publication
Journal of Hearing Science, 2017, Vol 7, Issue 2, p60
- ISSN
2083-389X
- Publication type
Article