Tactual recognition of embossed Morse code, letters, and braille

Abstract

A series of experiments was performed to evaluate the relative utility of embossed codes. Blindfolded sighted subjects attempted tactual recognition of braille, printed capital letters, and an embossed Morse code. Accuracy was generally similar for large embossed printed letters and braille. However, Morse code required much longer exploration times than did the other symbols. © 1990, The Psychonomic Society, Inc.. All rights reserved.