Single-chanhel Tactile Aid for the Profoundly Deaf

In this study of lipreading with supplementary tactile input, normally hearing subjects with noise masking were presented with tactile information relating to the voiced/unvoiced contrast. Considerable training was required before subjects were able to make use of this information so as to gain higher scores for lipreading with tactile Supplement than for lipreading alone . These results are in cantrast with those from earlier experiments which showed that relatively little training was necessary for successful tactile perception of voice stress.