Biomimetic Space-Variant Sampling in a Vision Prosthesis Improves the User's Skill in a Localization Task

Details Biomimetic Space-Variant Sampling in a Vision Prosthesis Improves the User's Skill in a Localization Task Biomimetic Space-Variant Sampling in a Vision Prosthesis Improves the User's Skill in a Localization Task

2007-09-18

arxiv.org/abs/0709.2762v1

CVHI 2007, Conference & Workshop on Assistive Technologies for People with Vision & Hearing Impairments, Granada : Espagne (20

Biology

Quantitative Biology

Neurons and Cognition

Scientific paper

In this experiment, we test the hypothesis of whether a 'retina-like' space variant sampling pattern can improve the efficiency of a visual prosthesis. Subjects wearing a visuo-auditory substitution system were tested for their ability to point at visual targets. The test group (space-variant sampling), performed significantly better than the control group (uniform sampling). The pointing accuracy was enhanced, as was the speed to find the target. Surprisingly, the time spanned to complete the training was also reduced, suggesting that this space-variant sampling scheme facilitates the mastering of sensorimotor contingencies.

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