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Related Experiment Video

Updated: Mar 2, 2026

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention
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Spatial auditory change detection in listeners with hearing loss.

Katarina C Poole1, Simon With2, Vincent Martin3

  • 1Dyson School of Design Engineering, Imperial College London, London, United Kingdom.

Hearing Research
|February 28, 2026
PubMed
Summary
This summary is machine-generated.

Hearing impairment, older age, and poor spectrotemporal sensitivity slow down the detection of new sounds in complex environments. Sound source location also impacts detection accuracy, especially for sounds originating from behind.

Keywords:
Change detectionHearing lossHearing-in-noisePsychophysicsSituational awarenessSpatial attentionSpatial audio

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Area of Science:

  • Auditory Neuroscience
  • Psychoacoustics
  • Human Auditory Perception

Background:

  • Everyday listening requires automatic monitoring of background sounds to detect changes.
  • Situational awareness depends on auditory change detection, but its impairment is poorly understood.
  • Sensorineural hearing loss is common in older adults, potentially affecting auditory monitoring.

Purpose of the Study:

  • To investigate how sensorineural hearing loss variability impacts spatial auditory change detection.
  • To determine the relationship between hearing loss characteristics and performance in a spatial change detection task.
  • To explore the influence of sound source location on auditory change detection in hearing-impaired individuals.

Main Methods:

  • Thirty older hearing-impaired listeners performed a spatial change detection task.
  • Hearing loss was characterized by audiometric thresholds, level change sensitivity, and spectrotemporal modulation sensitivity.
  • Reaction time, hit rate, and false alarm rate were analyzed against hearing loss factors and spatial location.

Main Results:

  • Poorer spectrotemporal sensitivity, higher hearing thresholds, and older age correlated with slower and less accurate sound detection.
  • Sensitivity to small level changes did not predict detection performance.
  • Sound sources from behind were detected less accurately and more slowly than those from the front or sides, suggesting attentional influences beyond acoustics.

Conclusions:

  • Hearing loss, age, and spatial location significantly influence the ability to monitor dynamic auditory scenes.
  • Spectrotemporal sensitivity is a potential clinical measure for non-speech auditory processing relevant to hearing aid fitting and situational awareness.
  • Auditory change detection deficits in hearing impairment may involve attentional mechanisms, particularly for sounds in the rear auditory field.