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Auditory localization accuracy and auditory spatial discrimination in children with auditory processing disorders.

Alexandra Annemarie Ludwig1, Michaela Zeug2, Marc Schönwiesner3

  • 1Faculty of Biosciences, Pharmacy and Psychology, University of Leipzig, Talstrasse 33, D-04103, Leipzig, Germany; Department of Otorhinolaryngology, Section Phoniatrics and Audiology, University Hospital of Leipzig, Liebigstrasse 12, D-04103, Leipzig, Germany.

Hearing Research
|April 28, 2019
PubMed
Summary
This summary is machine-generated.

Children with Auditory Processing Disorders (APD) struggle with sound discrimination but not pinpointing sound origins. This study highlights APD

Keywords:
Auditory localizationAuditory processing disordersAuditory spatial discriminationChildrenMinimum audible angleSpatial hearing

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Area of Science:

  • Neuroscience
  • Audiology
  • Developmental Psychology

Background:

  • Auditory Processing Disorders (APD) affect sound perception.
  • Spatial hearing is crucial for auditory development and function.
  • Understanding APD's impact on spatial hearing in children is vital.

Purpose of the Study:

  • To investigate spatial hearing abilities in children with APD.
  • To compare sound localization and discrimination between children with APD and controls.
  • To determine if APD affects the accuracy or variability of sound source localization.

Main Methods:

  • Participants: Children aged 6-12 with APD and age-matched controls.
  • Tasks: Absolute sound source localization and minimum audible angle (sound discrimination).
  • Stimuli: Noise bursts from 8 loudspeaker positions in different hemifields.

Main Results:

  • No significant difference in median localization accuracy between groups.
  • Children with APD showed higher intra-individual variability in localization responses.
  • APD group had significantly larger minimum audible angle thresholds, indicating poorer sound discrimination.

Conclusions:

  • APD impairs the ability to discriminate between similar sound sources.
  • APD does not affect the median accuracy of judging sound source locations.
  • Increased variability in localization suggests challenges in consistent spatial hearing for children with APD.