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Related Experiment Video

Updated: May 28, 2026

An Automated System for Sound Localization Testing in Hearing-Impaired Listeners
07:52

An Automated System for Sound Localization Testing in Hearing-Impaired Listeners

Published on: March 13, 2026

Pre-Stimulus Head Position and Its Effect on Sound Localization Metrics in Children.

Elisabeth Zangerl1, Franz Muigg1, Josef Seebacher2

  • 1Tirol Kliniken Innsbruck, University Hospital for Hearing, Speech & Voice Disorders, Anichstrasse 35, 6020 Innsbruck, Austria.

Audiology Research
|May 27, 2026
PubMed
Summary
This summary is machine-generated.

Initial head position significantly impacts sound localization accuracy in children, affecting the root mean square error (RMSE) but not the mean absolute error (MAE). This highlights the importance of accounting for head orientation in directional hearing tests.

Keywords:
directional hearinghearing aidspediatric audiology

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Area of Science:

  • Audiology
  • Pediatric audiology
  • Psychoacoustics

Background:

  • Sound localization is crucial for auditory development in children.
  • Accurate measurement of sound localization is essential for diagnosing hearing impairments.
  • The influence of initial head position on localization accuracy in children requires further investigation.

Purpose of the Study:

  • To investigate the impact of initial head position on sound localization accuracy in children.
  • To compare the effects of initial head position on two common error metrics: root mean square error (RMSE) and mean absolute error (MAE).

Main Methods:

  • Twenty-eight normal-hearing children (ages 6-10) participated in a sound localization task.
  • Head position at stimulus onset was tracked using a webcam-integrated eyewear system.
  • Localization data were analyzed with and without corrections for initial head orientation.

Main Results:

  • Initial head position significantly affected the root mean square error (RMSE), with a more pronounced effect in younger children.
  • The mean absolute error (MAE) remained largely unaffected by initial head position.
  • Children exhibited a tendency to deviate from the frontal direction with their initial head position.

Conclusions:

  • Initial head position can distort RMSE measurements in pediatric sound localization tests.
  • MAE provides a more robust measure of sound localization accuracy, less susceptible to variations in head orientation.
  • Accounting for initial head position is recommended for accurate interpretation of directional hearing tests in children.