Spatial Localization of Sound in the Late-Blind During Spatial Bisection Task and Minimum Audible Angle Task
DOI:
https://doi.org/10.37506/ijop.v7i3.161Keywords:
Spatial bisection task, Minimum audible angle task, late blind, Cross sensory calibration.Abstract
Objectives
Our objective was to assess the spatial localization of sound in both minimum audible angle task and spatial bisection task in the azimuthal plane in late blind subjects.
Methods
A total of ten late blind individuals and eight normal sighted blindfolded controls performed the spatial bisection task and minimum audible angle task.
Results and Conclusion
The late blind performed as good as the controls in both the tasks. The late blind would have had intact vision in their developmental years, enabling development of the ability to spatially localize sound. These results support the cross sensory calibration hypothesis that vision calibrates spatial localization of sound while the sensory system is still maturing.
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