Tactile, motor and cognitive capacities decline with age, but little is known about how this relates to braille reading outcomes. This study investigated correlates of braille reading speed among working-age and older adults. Texts were read in two modes (oral/silent) and two media (paper/electronic braille display) by 46 blind adults (age range…

The relations between reading, auditory, speech, phonological and tactile spatial processing are investigated in a Dutch speaking sample of blind braille readers as compared to sighted print readers. Performance is assessed in blind and sighted children and adults. Regarding phonological ability, braille readers perform equally well compared to…

Exploring the ability of subjects to make accurate discriminations by active touch, two studies involving 20 sighted adults investigated sensitivity of the fingertip in perceiving length, using Braille cells as stimuli. Results indicated differential sensitivity of the fingertip to one parameter of active touch: cell height discrimination. (JW)

Initial research is reported on development of a tangible graphics (a display with raised symbols for reading by hand rather than by eye) system and its evaluation by 20 blind adults. Results suggested that tangible graphs are a viable source of spatial information for blind readers. (Author/MC)

Forty adults with adventitious blindness were administered 12 different Braille discrimination tests representing combinations of standard or enlarged Braille and various amounts of horizontal and vertical spacing. Findings indicated that the most favorable discrimination conditions occurred with standard-sized Braille, with three spaces between…

This study evaluated performance of blind (n=17) and sighted adults on a haptic numerosity task of braille symbols in which symbol size was varied. Although blind subjects performed better than seeing subjects, the rate of learning and patterns of errors were similar, except that blind subjects did better with standard than with enlarged symbols.…

Twenty-six expert adult readers, 13 of whom were blind, were compared for how they perceived and retrieved written information. The study found that braille readers were not limited to the isolated identification of individual braille characters as previously thought, but could integrate greater quantities of written information. Implications for…

The paper reports the results of preliminary tests of the speechreading ability of a deaf blind adult who uses the Tadoma Method (speechreading based solely on vibrotactile information) for language acquisition and information. (Author/PHR)

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)