The study examined the ability to estimate the number of dots in Braille symbols by 21 legally blind and 21 sighted adults. Results indicated that this task was difficult for both blind and sighted subjects with little improvement over trials. Errors of underestimation exceeded errors of overestimation. (DB)

The paper reports on two experiments in Braille learning which compared blind and sighted subjects on the immediate recall of haptically-examined Braille symbols. In the first study, sighted subjects (N=64) haptically examined each of a set of Braille symbols with their preferred or nonpreferred hand and immediately recalled the symbol by drawing…

The study involving 96 undergraduates with no previous experience with braille investigated variables (such as size of the braille symbols) affecting the learning of braille. Data were analyzed in terms of the number of correct responses, item difficulty, and error patterns. Visual Ss did better than haptic Ss on the regular bralle items but not…

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.…