In a nutshell: When people who are blind use canes to explore their environment, they are substituting one sense for another. This review explores new sensory substitution approaches, such as feeding information from digital cameras to tactile stimulators on the skin.

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Stronks, H. C., Nau, A. C., Ibbotson, M. R., & Barnes, N. (2015). The role of visual deprivation and experience on the performance of sensory substitution devices. Brain research, 1624, 140-152.

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