Spatial Localization of Sound in the Late-Blind During Spatial Bisection Task and Minimum Audible Angle Task

Authors

  • Ganesh Prasanna, Sowmya Rajaram

DOI:

https://doi.org/10.37506/ijop.v7i3.161

Keywords:

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.

Author Biography

  • Ganesh Prasanna, Sowmya Rajaram

    Prasanna Ganesh1, Rajaram Sowmya2,*

    1Student, Third Year MBBS, Department of Physiology, Bangalore Medical College and Research Institute, Fort, KR Road, Bangalore

    2Assistant Professor, Department of Physiology, Bangalore Medical College and Research Institute, Fort, KR Road, Bangalore

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Published

2019-07-25

How to Cite

Spatial Localization of Sound in the Late-Blind During Spatial Bisection Task and Minimum Audible Angle Task. (2019). International Journal of Physiology, 7(3), 196-201. https://doi.org/10.37506/ijop.v7i3.161