A Proposed Tactile Vision-Substitution System for Infants who are Blind Tested on Sighted Infants

Segond, Hervé; Weiß, Deborah; Sampaio, Eliana

doi:10.1177/0145482x0710100105

Cited by 15 publications

(4 citation statements)

References 22 publications

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“…Moreover, our results allow us to consider the possibility of developing practical devices of visual substitution for very young blind subjects, helping to avoid developmental disorders related to early blindness. For example, when the attraction of the unusual stimulation produced by a TVSS was evaluated in babies (Segond et al 2007), two micro cameras (only one being active) were placed on the baby's feet. The active camera placed randomly on the left or right foot conveyed visual images into binary data transmitted to a matrix placed on the abdomen.…”

Section: Discussionmentioning

confidence: 99%

Perceiving Space and Optical Cues via a Visuo-Tactile Sensory Substitution System: A Methodological Approach for Training of Blind Subjects for Navigation

et al. 2013

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A methodological approach to perceptual learning was used to allow both early blind subjects (experimental group) and blindfolded sighted subjects (control group) to experience optical information and spatial phenomena, on the basis of visuo-tactile information transmitted by a 64-taxel pneumatic sensory substitution device. The learning process allowed the subjects to develop abilities in spatial localisation, shape recognition (with generalisation to different points of view), and monocular depth cue interpretation. During the training phase, early blind people initially experienced more difficulties than blindfolded sighted subjects (having previous perceptual experience of perspective) with interpreting and using monocular depth cues. The amelioration of the performance for all blind subjects during training sessions and the quite similar level of performance reached by two groups in the final navigation tasks suggested that early blind people were able to develop and apply cognitive understanding of depth cues. Both groups showed generalisation of the learning from the initial phases to cue identification in the maze, and subjectively experienced shapes facing them. Subjects' performance depended not only on their perceptual experience but also on their previous spatial competencies.

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Section: Discussionmentioning

confidence: 99%

Perceiving Space and Optical Cues via a Visuo-Tactile Sensory Substitution System: A Methodological Approach for Training of Blind Subjects for Navigation

et al. 2013

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“…In this sense, the early integration of technological devices in classical rehabilitation programs for visually impaired children would provide an immediate benefit in terms of quality of life. To our knowledge, only a preliminary study investigated the extent to which the artificial tactile stimulation produced by the sensory substitution device motivates sighted infants to explore the environment and interact with peers (Segond et al, 2007 ). Although sighted infants positively responded to the tactile feedback when it was contingent to their self-movement, the device hasn't been tested on blind infants.…”

Section: Introductionmentioning

confidence: 99%

Multisensory Rehabilitation Training Improves Spatial Perception in Totally but Not Partially Visually Deprived Children

Cappagli

Finocchietti

Baud-Bovy

et al. 2017

Front. Integr. Neurosci.

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Since it has been shown that spatial development can be delayed in blind children, focused sensorimotor trainings that associate auditory and motor information might be used to prevent the risk of spatial-related developmental delays or impairments from an early age. With this aim, we proposed a new technological device based on the implicit link between action and perception: ABBI (Audio Bracelet for Blind Interaction) is an audio bracelet that produces a sound when a movement occurs by allowing the substitution of the visuo-motor association with a new audio-motor association. In this study, we assessed the effects of an extensive but entertaining sensorimotor training with ABBI on the development of spatial hearing in a group of seven 3–5 years old children with congenital blindness (n = 2; light perception or no perception of light) or low vision (n = 5; visual acuity range 1.1–1.7 LogMAR). The training required the participants to play several spatial games individually and/or together with the psychomotor therapist 1 h per week for 3 months: the spatial games consisted of exercises meant to train their ability to associate visual and motor-related signals from their body, in order to foster the development of multisensory processes. We measured spatial performance by asking participants to indicate the position of one single fixed (static condition) or moving (dynamic condition) sound source on a vertical sensorized surface. We found that spatial performance of congenitally blind but not low vision children is improved after the training, indicating that early interventions with the use of science-driven devices based on multisensory capabilities can provide consistent advancements in therapeutic interventions, improving the quality of life of children with visual disability.

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“…L'objectif essentiel étant qu'ils puissent contrôler activement leurs interactions par la production d'une corrélation systématique entre un mouvement et ses effets consécutifs. Cette capacité, ainsi que le caractère attractif pour de jeunes bébés des stimulations issues d'un dispositif de suppléance sensorielle visuo-tactile de type TVSS (Tactile Vision Substitution System ; prototype à liaisons filaires), ont été récemment scientifiquement démontrés par notre équipe [Segond, Weiss and Sampaio 2007], en lien avec les travaux soulignant les bénéfices du toucher au cours du développement précoce [Segond 2008]. Chez l'adulte aveugle, l'enquête Handicaps-Incapacités-Dépendance 2 , menée récemment en France sur la déficience visuelle, a permis d'analyser les restrictions d'activité occasionnées par le handicap en fonction de sa sévérité.…”

Section: Deficience Visuelle Et Suppleance Sensorielleunclassified

IHM de Suppléance Sensorielle Visuo-Tactile pour Aveugles et d'Intégration Sensorielle pour Autistes

Segond

Maris

Desnos

et al. 2014

Journal d'Interaction Personne-Système

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Our research focuses on perceptual and cognitive mechanisms involved in learning procedures in order to develop and validate innovating technologies in the field of health for blind people through the implementation of an embarked version of a Tactile Vision Sensory Substitution device (TVSS) with wireless connections between the three TVSS components (micro camera, coupling system and matrix of tactile stimulators), aesthetically acceptable and allowing an ecological use. Such a device could allow prevention of developmental disorders in blind infants, autonomy for blind people in everyday life (thanks to the implementation of a Human Machine Interface allowing connections between the embarked TVSS device and a Personal Computer with a software development presenting a 3D numerization of the subject's urban environment). A new perspective is proposed in favor of innovating taking care programs for autistic people. The main goal of this project is to allow disabled people to benefit from the scientifically demonstrated efficacy of TVSS devices.

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A Proposed Tactile Vision-Substitution System for Infants who are Blind Tested on Sighted Infants

Cited by 15 publications

References 22 publications

Perceiving Space and Optical Cues via a Visuo-Tactile Sensory Substitution System: A Methodological Approach for Training of Blind Subjects for Navigation

Perceiving Space and Optical Cues via a Visuo-Tactile Sensory Substitution System: A Methodological Approach for Training of Blind Subjects for Navigation

Multisensory Rehabilitation Training Improves Spatial Perception in Totally but Not Partially Visually Deprived Children

IHM de Suppléance Sensorielle Visuo-Tactile pour Aveugles et d'Intégration Sensorielle pour Autistes

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