2 research outputs found
Special needs education in the blind population: effects of prior expertise in raised line drawings on blind people's cognition
AbstractIn their specialized schooling, blind children are now frequently presented with raised line figures and maps. However there is still a lot to do to evaluate the cognitive effects of training using these displays. The purpose of this research is to determine if the level of prior expertise in the haptic exploration and perception of raised line materials, may enhance blind people's spatial imagery. We observed that in the three spatial tasks used in this study, the congenitally blind experts performed better than the early and late blind non experts and the early blind experts performed even better than the late blind non experts. These observations suggested that a high level of expertise in congenitally and early blind people may compensate for the impairment in spatial representation often resulting from lack of visual experience
Trouble de la vision et imagerie mentale visuelle du matériel orthographique, des couleurs, des visages et des relations spatiales
International audienceLâimagerie mentale suscite un intĂ©rĂȘt croissant au sein des Ă©tudes en neuropsychologie. Toutefois, la nature de ces images reste encore mal connue. Lâobservation de sujets porteurs de troubles visuels dâorigine pĂ©riphĂ©rique peut nous permettre dâapprofondir nos connaissances dans ce domaine. Le but de cette Ă©tude Ă©tait de dĂ©terminer si les troubles perceptifs de ces sujets affectaient leurs capacitĂ©s dâimagerie mentale, du matĂ©riel orthographique, des couleurs, des visages et des relations spatiales. De plus, les effets de la modalitĂ© haptique lorsquâelle peut participer Ă la rĂ©solution de tĂąches dâimagerie mentale visuelle ont Ă©tĂ© Ă©valuĂ©s. Les rĂ©sultats rĂ©vĂšlent que les capacitĂ©s dâimagerie mentale du matĂ©riel orthographique, des couleurs et des visages sontaffectĂ©es par le dĂ©ficit visuel dâorigine pĂ©riphĂ©rique, mais quâune stratĂ©gie fondĂ©e sur lâĂ©criture permet aux sujets dâamĂ©liorer leurs performances au cours des tĂąches dâimagerie du matĂ©riel orthographique