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[Age dependent changes in mandarin speech perception in normal hearing people].

R J Dong1, X H Wang2, D X Liu1

  • 1Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education of China, Beijing Institute of Otolaryngology, Beijing, 100005, China.

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi = Journal of Clinical Otorhinolaryngology Head and Neck Surgery
|May 26, 2018
PubMed
Summary

Mandarin speech perception declines with age in adults with normal hearing, especially in noisy conditions. This age-related decline in auditory processing affects understanding speech when background noise increases.

Keywords:
agespeech perceptiontemporal processing

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Area of Science:

  • Audiology
  • Gerontology
  • Speech Perception

Background:

  • Normal hearing sensitivity does not guarantee intact speech perception.
  • Age-related changes in auditory processing can impact communication.
  • Understanding speech in noise is crucial for daily interactions.

Purpose of the Study:

  • To determine if and when Mandarin speech perception ability deteriorates with age.
  • To assess the impact of age on speech perception in adults with normal hearing.
  • To identify specific conditions under which age-related speech perception decline occurs.

Main Methods:

  • A cohort of 75 normal-hearing adults aged 20-70 years was studied.
  • Participants were divided into five age groups (20-30, 31-40, 41-50, 51-60, 61-70).
  • Mandarin Hearing in Noise Test was used to evaluate speech perception abilities under varying noise levels.

Main Results:

  • Speech perception scores differed significantly across age groups in 0 dB and -5 dB noise conditions (P<0.001).
  • No significant differences were found in quiet, 10 dB, or 5 dB conditions (P>0.005).
  • A significant negative correlation was observed between speech perception and age in the -5 dB condition.

Conclusions:

  • Speech perception declines with increasing age, particularly in individuals with audiometrically normal hearing.
  • The decline is evident when background noise levels become more challenging.
  • Age-related auditory processing changes affect speech understanding in adverse listening environments.