A Differential Comparison of Two Types of Electropulse Alphabets Based on Locus of Stimulation

Abstract
Recognition accuracy was observed on 25 Ss with variation in the type placement (single- and multi-body regions) when varying numbers (1, 2, 3, 5, and 7) of electrode sites were pulsed simultaneously from among a 10-electrode array. Accuracy dropped drastically with increased number of sites pulsed and was most pronounced when the electrode array was restricted to a single region of the body. The accumulated data appear to cast serious doubt on the use of patterning of simultaneous electropulses as a fruitful approach to tactual communication. An alternative approach was proposed.