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Behavior for Relieving Pressure
Published in J G Webster, Prevention of Pressure Sores, 2019
Tactile sensory substitution is using tactile sensing to receive information normally received by another sense or at a different area of skin. There are many reports on tactile vision or hearing substitution in which visual or audio signals are converted to digital patterns and transferred to the skin to aid the blind or deaf. Tactile substitution is also used in transferring pressure patterns under the insensate foot of diabetic patients to sensate skin (Wertsch et al 1989). The same concept applies in hand sensory substitution in which pressure patterns on the glove or robotic arm are transferred to sensate skin (Bach-y-Rita et al 1987). There are different ways to stimulate the skin: Mechanical vibrationElectric currentVariable pressure (used for transferring pressure-time pattern).
Technologies for vision impairment
Published in John Ravenscroft, The Routledge Handbook of Visual Impairment, 2019
Lauren N. Ayton, Penelope J. Allen, Carla J. Abbott, Matthew A. Petoe
While bionic eyes are an exciting prospect, there are many individuals who will not be suitable for, or may not wish to have, an electronic implant for vision improvement. Sensory substitution devices offer a non-surgical approach that may enhance “visual” potential for people, by converting visual information into another sensory domain (e.g. sound). They can be suitable for people with profound vision loss, and also for those with residual sight, as an additional sensory input.
The Systemic User Experience Assessment
Published in Stefano Federici, Marcia J. Scherer, Assistive Technology Assessment Handbook, 2017
Simone Borsci, Masaaki Kurosu, Maria Laura Mele, Stefano Federici
All technologies and models described in the above-mentioned studies aim at providing sensory substitution systems for blind people, but none of them seems to have followed an effective user-centered approach in the design process. Most of the above-mentioned studies were based on an objective design process; users were only involved once the prototype had been produced, which meant that the subjective perspective, which is fundamental to an analysis of the components of the interaction between user and the sonification interface, was neglected.
Exploration of a novel physical therapy protocol that uses a sensory substitution device to improve the standing postural balance of children with balance disorders
Published in Physiotherapy Theory and Practice, 2022
Swati M. Surkar, Regina Harbourne, Brad Corr, David Arpin, Max J.Kurz
Sensory substitution is a method of delivering alternative sensory information obtained from an artificial sensory receptor to the brain via an intact sensory pathway (Bach-y-Rita, 1990). A primary principle of sensory substitution is that the loss of sensory information from one sensory modality can be replaced with inputs from another sensory modality. The organization of the brain is highly adaptive to the type of feedback it receives and the cross-modal recruitment theories of plasticity explain the replacement of one sensory system with sensory inputs from other systems (Collignon et al., 2011; Ptito, Moesgaard, Gjedde, and Kupers, 2005). Prior studies have established that the brain is capable of using this alternative sensory information and will reorganize itself to improve its function (Bach-y-Rita, Danilov, Tyler, and Grimm, 2005). For example, individuals who lose vision learn to ‘see’ words using the sense of touch instead of vision (Theoret, Merabet, and Pascual-Leone, 2004). Older individuals relied on vision when vestibular information was reduced (Alberts, de Brouwer, Selen, and Medendorp, 2016). Further evidence points to functional magnetic imaging (fMRI) studies showing that the visual cortex is active when blind individuals read braille (Sadato, 2005). Thus, it is possible that the brain is also capable of incorporating new and alternative sensory information provided by an augmentative device (Bach-y-Rita, Danilov, Tyler, and Grimm, 2005).