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Pitch Discrimination Testing in Patients with a Voice Disorder.

Duy Duong Nguyen1,2, Antonia M Chacon1, Daniel Novakovic1,3

  • 1Voice Research Laboratory, Discipline of Speech Pathology, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia.

Journal of Clinical Medicine
|February 15, 2022
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Individuals with voice disorders exhibit impaired pitch discrimination (PD), a key aspect of auditory perception. PD testing can effectively differentiate between those with and without voice disorders, aiding diagnosis and treatment.

Keywords:
auditory discriminationvoice assessmentvoice controlvoice disorders

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Area of Science:

  • Auditory Neuroscience
  • Speech Pathology
  • Clinical Otolaryngology

Background:

  • Auditory perception, specifically pitch discrimination (PD), is crucial for voice control.
  • The impact of voice disorders on PD and its diagnostic utility remains underexplored.

Purpose of the Study:

  • To evaluate pitch discrimination abilities in individuals with voice disorders compared to a control group.
  • To determine if PD testing can differentiate between individuals with and without voice disorders.

Main Methods:

  • Pitch discrimination testing was administered to a group of 71 participants with voice disorders (including muscle tension dysphonia and neurological voice disorders) and 80 controls.
  • Accurate response percentage and PD threshold were measured as key outcome metrics.

Main Results:

  • The voice-disordered group demonstrated significantly lower PD accuracy compared to the control group, regardless of musical background.
  • Participants with voice disorders required a larger PD threshold to discern pitch variations.
  • The mean PD threshold served as a significant discriminator between the voice-disordered and control groups.

Conclusions:

  • Impaired pitch discrimination is associated with voice disorders, impacting voice control and potentially reflecting underlying pathogenesis.
  • Pitch discrimination testing is a valuable tool for comprehensive voice assessment and patient monitoring during treatment.