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Related Concept Videos

Hearing01:31

Hearing

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When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
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Hearing assistive technologies in developing countries: background, achievements and challenges.

Bradley McPherson1

  • 1Division of Speech and Hearing Sciences, Faculty of Education, The University of Hong Kong , Hong Kong , China.

Disability and Rehabilitation. Assistive Technology
|April 8, 2014
PubMed
Summary
This summary is machine-generated.

Hearing impairment is a significant global challenge, especially in developing nations. Improving access to hearing aids and assistive devices requires addressing barriers like cost, training, and awareness to enhance hearing health care.

Keywords:
Appropriate technologyaudiologydeveloping countrieshearing aidshearing disorderstraining

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Area of Science:

  • Global Health
  • Audiology
  • Rehabilitation

Background:

  • Hearing impairment and disability pose a substantial burden in developing countries.
  • There is a critical need for amplification devices, such as hearing aids, in low and middle-income countries (LMICs).

Purpose of the Study:

  • To review the need for hearing amplification devices in LMICs.
  • To outline initiatives aimed at improving access to these devices.
  • To identify barriers and propose solutions for better access.

Main Methods:

  • Reviewing prevalence estimates of disabling hearing impairment.
  • Providing examples of national and international initiatives in LMICs.
  • Suggesting appropriate technologies and sustainable fitting programs.

Main Results:

  • Numerous challenges hinder successful hearing aid fitting in LMICs.
  • Some programs demonstrate pathways to improved access.
  • Successful programs integrate appropriate technology with local support.

Conclusions:

  • Addressing barriers like personnel shortages, high costs, and low awareness is crucial.
  • Successful programs combine appropriate technology with sustainable local support.
  • Advancements in technology and training may lead to parity in hearing device usage with developed economies.