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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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Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss
09:44

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Published on: January 25, 2016

Speech processing disorder in neural hearing loss.

Joseph P Pillion1

  • 1Department of Audiology, Kennedy Krieger Institute, 801 North Broadway, Baltimore, MD 21205, USA ; Department of Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.

Case Reports in Medicine
|December 20, 2012
PubMed
Summary
This summary is machine-generated.

Central auditory processing deficits impact various neurological conditions and neurodevelopmental disorders. Audiological test batteries and electrophysiological methods help pinpoint dysfunction across auditory pathways.

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Area of Science:

  • Neuroscience
  • Audiology
  • Neurology

Background:

  • Central auditory processing deficits are linked to conditions like traumatic brain injury, neurodegenerative diseases, and aging.
  • Subtle deficits are also observed in neurodevelopmental disorders, including learning disabilities and attention deficit disorder (ADD).

Purpose of the Study:

  • To review illustrative cases demonstrating audiological test batteries for central auditory processing deficits.
  • To define the locus of auditory dysfunction using electrophysiological tests.

Main Methods:

  • Utilized a comprehensive audiological test battery.
  • Employed electrophysiological tests of auditory function.
  • Examined patients with auditory neuropathy/dyssynchrony syndrome, inferior colliculi lesions, and temporal lobe lesions.

Main Results:

  • Demonstrated the utility of audiological test batteries in diagnosing central auditory processing deficits.
  • Identified dysfunction at various neural levels, including the auditory nerve, midbrain, and cortex.

Conclusions:

  • Central auditory processing deficits manifest across diverse clinical populations.
  • Electrophysiological assessments are crucial for localizing auditory pathway dysfunction.