Feasibility of Virtual Reality-Based Auditory Localization Training With Binaurally Recorded Auditory Stimuli for Patients With Single-Sided Deafness
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초록
Objectives. To train participants to localize sound using virtual reality (VR) technology, appropriate auditory stimuli thatcontain accurate spatial cues are essential. The generic head-related transfer function that grounds the programmedspatial audio in VR does not reflect individual variation in monaural spatial cues, which is critical for auditory spatialperception in patients with single-sided deafness (SSD). As binaural difference cues are unavailable, auditory spatialperception is a typical problem in the SSD population and warrants intervention. This study assessed the applicabilityof binaurally recorded auditory stimuli in VR-based training for sound localization in SSD patients. Methods. Sixteen subjects with SSD and 38 normal-hearing (NH) controls underwent VR-based training for sound local-ization and were assessed 3 weeks after completing training. The VR program incorporated prerecorded auditorystimuli created individually in the SSD group and over an anthropometric model in the NH group. Results. Sound localization performance revealed significant improvements in both groups after training, with retainedbenefits lasting for an additional 3 weeks. Subjective improvements in spatial hearing were confirmed in the SSDgroup. Conclusion. By examining individuals with SSD and NH, VR-based training for sound localization that used binaurally re-corded stimuli, measured individually, was found to be effective and beneficial. Furthermore, VR-based training doesnot require sophisticated instruments or setups. These results suggest that this technique represents a new therapeutictreatment for impaired sound localization.
Abstract
Objectives. To train participants to localize sound using virtual reality (VR) technology, appropriate auditory stimuli thatcontain accurate spatial cues are essential. The generic head-related transfer function that grounds the programmedspatial audio in VR does not reflect individual variation in monaural spatial cues, which is critical for auditory spatialperception in patients with single-sided deafness (SSD). As binaural difference cues are unavailable, auditory spatialperception is a typical problem in the SSD population and warrants intervention. This study assessed the applicabilityof binaurally recorded auditory stimuli in VR-based training for sound localization in SSD patients. Methods. Sixteen subjects with SSD and 38 normal-hearing (NH) controls underwent VR-based training for sound local-ization and were assessed 3 weeks after completing training. The VR program incorporated prerecorded auditorystimuli created individually in the SSD group and over an anthropometric model in the NH group. Results. Sound localization performance revealed significant improvements in both groups after training, with retainedbenefits lasting for an additional 3 weeks. Subjective improvements in spatial hearing were confirmed in the SSDgroup. Conclusion. By examining individuals with SSD and NH, VR-based training for sound localization that used binaurally re-corded stimuli, measured individually, was found to be effective and beneficial. Furthermore, VR-based training doesnot require sophisticated instruments or setups. These results suggest that this technique represents a new therapeutictreatment for impaired sound localization.
참고문헌 (30)
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