Introduction: As the number of people with visual impairments (that is, those who are blind or have low vision) is continuously increasing, rehabilitation and engineering researchers have identified the need to design sensory-substitution devices that would offer assistance and guidance to these people for performing navigational tasks. Auditory…

In their specialized schooling, blind children are now frequently presented with raised line figures and maps. However, there is still much to do in evaluating the cognitive effects of training using these displays. The purpose of this research is to determine if the level of expertise in the haptic exploration, and the perception of the raised…

This article reviews recent research on perception of tangible pictures in sighted and blind people. Haptic picture naming accuracy is dependent upon familiarity and access to semantic memory, just as in visual recognition. Performance is high when haptic picture recognition tasks do not depend upon semantic memory. Viewpoint matters for the ease…