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Updated: Aug 16, 2025

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention
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Towards a Consensus on an ICF-Based Classification System for Horizontal Sound-Source Localization.

Griet Mertens1,2, Ellen Andries1,2, Anja Kurz3

  • 1Department of Otorhinolaryngology, Head and Neck Surgery, Antwerp University Hospital, 2000 Antwerp, Belgium.

Journal of Personalized Medicine
|December 23, 2022
PubMed
Summary
This summary is machine-generated.

A new classification system, the HEARRING_LOC_ICF scale, standardizes sound localization testing results. This improves data comparability for cochlear implant research and evidence-based practice.

Keywords:
ICFbinaural hearingclassificationcochlear implantinteraural level differenceinteraural time differencesingle-sided deafnesssound localizationtesting-method consensusunilateral hearing loss

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Area of Science:

  • Audiology
  • Rehabilitation medicine
  • Biomedical engineering

Background:

  • Current sound localization testing exhibits significant variability in procedures and reporting metrics.
  • Standardization is crucial for reliable data interpretation, particularly in cochlear implantation research.

Purpose of the Study:

  • To establish a consensus classification system for reporting sound localization test outcomes.
  • To enhance the comparability of localization data across different research settings and listener groups.

Main Methods:

  • Development of the HEARRING_LOC_ICF scale, integrating the International Classification of Functioning, Disability and Health (ICF) framework.
  • Retrospective application of the scale to datasets from normal-hearing and cochlear implant listeners.

Main Results:

  • The HEARRING_LOC_ICF scale provides a standardized, ICF-graded approach (0-4) for reporting localization errors.
  • Demonstrated improved comparability of sound localization results after retrospective data analysis.

Conclusions:

  • The proposed classification system facilitates multi-center studies and meta-analyses in audiology.
  • Implementation of the HEARRING_LOC_ICF scale promotes evidence-based practice in sound localization assessment.