Abstract
Two prelingually profoundly deaf teenage girls were taught to identify “live-voice” English words while wearing a tactile voder. To ensure the subject's deafness, hearing aids were removed and earplugs and headphones carrying white noise were worn. The reader sat out of sight from the subject so lipreading information could not be obtained. Words were introduced two or three at a time until the subject reached criterion on a 50-word list. The two subjects acquired a tactual vocabulary of 50 words with 21 and 25 h of training, respectively. Immediately after these word identification tests, experiments were carried out to test the subject's ability to identify the “manner of articulation” features of speech. Subjects could identify whether CV's contained a nasal, liquid voiced stop, unvoiced stop, or unvoiced fricative with accuracies ranging from 75% to 100% correct.
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