Negative priming (NP) refers to the finding that people's responses to probe targets previously presented as prime distractors are usually slower than to unrepeated stimuli. Intriguingly, the effect sizes of tactile NP were much larger than the effect sizes for visual NP. We analyzed whether the large tactile NP effect is just a side effect of the…

Change blindness refers to the difficulty most people find in detecting a difference between two pictures when these are presented successively, with a brief interruption between. Attention at the site of the change is required for detection. A number of studies have investigated change blindness in adults and children with autism spectrum…

The Tactile Vision Substitution System converts the visual image from a narrow-angle television camera to a tactual image on a 5-inch square, 100-point display of vibrators placed against the abdomen of the blind person. (Author)

A follow-up account of a mother's attempts to provide her blind daughter, now aged six, with knowledge of the physical world through the manipulation of three-dimensional objects and two-dimensional tactile representations. The case is made for the value of pictures to the development of children's understanding in general; and for the child who…

A review of the literature on the spatial functioning of the blind, the results of a questionnaire of 75 sighted college students and their parents, and results of a study of 87 blind and seeing adults' performance on three spatial tasks are presented. The review suggested that adventitiously blind individuals perform better than congenitally…

Examination of the first 50 words of three blind children revealed that the early vocabulary paralleled that of seeing children in terms of age and speed of acquisition. Differences between the two groups were related to factors which were highly influenced by experience (including visual experience). (Author/CB)

Visualized braille was presented on closed circuit television (CCTV) to six blind tactile braille reading subjects (ages 12-50). Results supported cross-modal transfer of learning from tactile to visual modality. After intensive visual training, these subjects could discriminate visual forms and read ordinary print using the CCTV. (Author/BS)