The study reported in this article compared the performance on perspective-taking tasks of congenitally blind children performing tasks through haptic exploration, congenitally blind children using a vibrotactile prosthetic device, and children with low vision using limited visual abilities. The vibrotactile prosthetic device improved the blind children’s performance on the perspective-taking tasks. When the visually impaired children were asked to perform the tasks through haptic exploration or the use of limited vision, the perspective-taking tasks did not adequately measure their perspective-taking abilities.
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