Tactile-Foot Stimulation Can Assist the Navigation of People with Visual Impairment
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précédent :
000458;
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Tactile-Foot Stimulation Can Assist the Navigation of People with Visual Impairment
Auteurs : Ramiro Velázquez ;
Edwige Pissaloux ;
Aimé Lay-EkuakilleSource :
-
Applied Bionics and Biomechanics [ 1176-2322 ] ; 2015.
RBID : PMC:4745435
Abstract
Background. Tactile interfaces that stimulate the plantar surface with vibrations could represent a step forward toward the development of wearable, inconspicuous, unobtrusive, and inexpensive assistive devices for people with visual impairments. Objective. To study how people understand information through their feet and to maximize the capabilities of tactile-foot perception for assisting human navigation. Methods. Based on the physiology of the plantar surface, three prototypes of electronic tactile interfaces for the foot have been developed. With important technological improvements between them, all three prototypes essentially consist of a set of vibrating actuators embedded in a foam shoe-insole. Perceptual experiments involving direction recognition and real-time navigation in space were conducted with a total of 60 voluntary subjects. Results. The developed prototypes demonstrated that they are capable of transmitting tactile information that is easy and fast to understand. Average direction recognition rates were 76%, 88.3%, and 94.2% for subjects wearing the first, second, and third prototype, respectively. Exhibiting significant advances in tactile-foot stimulation, the third prototype was evaluated in navigation tasks. Results show that subjects were capable of following directional instructions useful for navigating spaces. Conclusion. Footwear providing tactile stimulation can be considered for assisting the navigation of people with visual impairments.
Url: DOI: 10.1155/2015/798748
PubMed: 27019593
PubMed Central: 4745435
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