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Spatial masking: Development and testing of a new tinnitus assistive technology
Grant D Searchfield1, Kei Kobayashi1, Shirley-Anne Hodgson1
1a Audiology Section , The University of Auckland , Auckland , New Zealand.
Assistive Technology : the Official Journal of RESNA
|January 29, 2016
Summary
Spatial masking, a novel tinnitus management technique, was successfully developed and piloted. This method, which targets the perceived location of tinnitus, showed participant preference and feasibility for future clinical trials.
Area of Science:
- Audiology
- Neuroscience
- Biomedical Engineering
Background:
- Tinnitus management often involves sound masking.
- Spatial localization of tinnitus has not been previously explored for masking.
- Developing targeted masking strategies is crucial for improving tinnitus therapy.
Purpose of the Study:
- To develop and evaluate a method for spatial masking of tinnitus.
- To compare spatial masking with conventional bilateral masking and Tinnitus Retraining Therapy.
- To assess the feasibility and participant preference for spatial masking.
Main Methods:
- Three studies were conducted: proof of concept, prototype evaluation, and a pilot crossover study.
- Spatial masking was compared against bilateral masking and Tinnitus Retraining Therapy.
- Participant outcomes were assessed using the Tinnitus Handicap Inventory (THI) and Tinnitus Functional Index (TFI).
Main Results:
- A preference for the spatial (3D) masking stimulus was observed across all studies.
- Individual improvements in THI and TFI scores were noted, although group differences were not significant.
- The spatial masking concept was successfully piloted, demonstrating feasibility.
Conclusions:
- Spatial masking of tinnitus is a feasible therapeutic approach.
- The technique shows promise and benefits for many participants.
- Further clinical trials and therapy development are warranted based on these findings.
