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Head angle and elevation in classroom environments: implications for amplification.

Todd Andrew Ricketts1, Jason Galster

  • 1Vanderbilt Bill Wilkerson Center of Otolaryngology and Communication Sciences, USA. todd.a.ricketts@vanderbilt.edu

Journal of Speech, Language, and Hearing Research : JSLHR
|March 28, 2008
PubMed
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Children with and without hearing loss demonstrated similar head orientation accuracy in schools. Children with hearing loss showed increased attention to secondary sounds, suggesting a compensatory visual monitoring strategy.

Area of Science:

  • Audiology
  • Developmental Psychology
  • Acoustic Engineering

Background:

  • Understanding children's auditory attention in complex environments is crucial for educational success.
  • Previous research suggests hearing loss may impact auditory localization and attention.
  • School environments present unique challenges due to competing sound sources.

Purpose of the Study:

  • To investigate children's head orientation towards sound sources in real-world school settings.
  • To compare head orientation accuracy between children with and without hearing loss.
  • To assess the influence of age on head orientation and directional benefit potential.

Main Methods:

  • Forty children (ages 4-17) with and without hearing loss participated.
  • Head angle and elevation deviations were measured in 40 diverse school environments.

Related Experiment Videos

  • Data collection involved physical measurements and multi-camera video analysis.

    • Main Results:

    • Head orientation accuracy was comparable between children with and without hearing loss.
    • Accuracy remained consistent across different age groups.
    • Children with hearing loss were more prone to orienting towards secondary speech signals.

    Conclusions:

    • Findings support the hypothesis that hearing loss is associated with enhanced visual monitoring.
    • Age does not appear to be a limiting factor for auditory interventions in noisy settings.
    • Results indicate potential for improving signal-to-noise ratios through directivity-based strategies.