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A test of virtual auditory localization

J M Besing1, J Koehnke

  • 1Department of Communication Sciences and Disorders, Louisiana State University, Baton Rouge, USA.

Ear and Hearing
|April 1, 1995
PubMed
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A new virtual auditory localization test effectively measures binaural performance in children and adults. This easy-to-administer tool shows sensitivity to binaural processing differences, particularly in children with a history of otitis media.

Area of Science:

  • Audiology
  • Neuroscience
  • Speech and Hearing Sciences

Background:

  • Binaural hearing is crucial for sound localization and understanding speech in noisy environments.
  • Traditional free-field localization tests present challenges in calibration, reproducibility, and controlling for head movements.
  • Virtual auditory localization offers a controlled environment to assess binaural function.

Purpose of the Study:

  • To evaluate a novel virtual auditory localization test for ease of administration and sensitivity to binaural performance differences.
  • To compare binaural performance in adults and children with and without a history of otitis media using this virtual test.

Main Methods:

  • A virtual auditory localization test and a masking-level difference (MLD) task were administered to three groups: adults, children with no otitis media history, and children with otitis media history.

Related Experiment Videos

  • Each group consisted of five participants.
  • Participant groups were determined by medical history and parental reports.

    • Main Results:

    • The virtual auditory localization test proved useful and sensitive to binaural processing differences in both children and adults.
    • Adults and children without a history of otitis media demonstrated comparable performance on both binaural tests, aligning with literature for normal-hearing listeners.
    • Children with a history of otitis media exhibited poorer performance on both the virtual localization and MLD tasks.

    Conclusions:

    • The virtual auditory localization test is easy to administer to diverse age groups.
    • Its signal processing facilitates cross-laboratory comparisons, positioning it as a valuable clinical tool.
    • Further development for clinical application is underway.