Abstract de la publi numéro 11583

The present study tests whether age at onset of total blindness affects the haptic processing and recognition of tactile pictures in a sample of 20 blind adults. Specifically, we examined the relationships between age at onset of total blindness, type of mental imagery (visual, non-visual) used to perform the haptic recognition task, and haptic recognition performance. Significant correlations were found between age at onset of total blindness and type of mental imagery. Haptic recognition performance was high in the sample of blind adults, and it did not vary significantly according to age at onset of blindness, or type of mental imagery. The results show that haptic processing of non-figurative tactile pictures may be efficiently achieved with different levels of visual experience and different types of mental imagery in totally blind adults. Interestingly, they also suggest that the type of mental imagery used for recognition depend on the proportion of visual experience.