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Related Experiment Videos

Developmental changes in high-frequency sensitivity.

S E Trehub1, B A Schneider, B A Morrongiello

  • 1Department of Psychology, University of Toronto, Mississauga, Ont., Canada.

Audiology : Official Organ of the International Society of Audiology
|January 1, 1989
PubMed
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Children

Area of Science:

  • Audiology
  • Pediatric audiology
  • High-frequency hearing

Background:

  • High-frequency hearing sensitivity is crucial for speech perception and environmental awareness.
  • Understanding age-related changes in hearing, especially in children, is vital for early detection of potential issues.

Purpose of the Study:

  • To investigate age-related changes in auditory sensitivity to high-frequency noises (10, 20, and 25 kHz) in children and young adults.
  • To identify the age at which high-frequency hearing sensitivity develops and declines.

Main Methods:

  • Auditory sensitivity was measured using 1/3-octave-band noises at 10, 20, and 25 kHz.
  • Participants included 200 children (1.5–16 years) and 20 young adults.

Main Results:

Related Experiment Videos

  • Sensitivity to 25 kHz was limited to children aged 5–14 years.
  • Hearing sensitivity to 20 kHz peaked around age 8 and declined thereafter.
  • Sensitivity to 10 kHz reached adult levels by age 5 and remained stable.

Conclusions:

  • High-frequency hearing loss may emerge around age 10 in children.
  • The study highlights the need to differentiate between age-related hearing loss (presbyacusis) and noise-induced hearing loss (socioacusis).