Investigating the MESA (Multipoint Electrotactile Speech Aid): The transmission of connected discourse

Abstract
Normal-hearing young human adults [3] were tested in their reception of connected discourse materials under 2 receiving conditions; visual-reception alone (lipreading) and visual reception in conjunction with an electrotactile speech aid (MESA). Subjects were artificially deafened with earplugs and white noise; all stimuli were delivered live-voice using a special tracking procedure. After an initial period of learning, combined visual and electrotactile receptive performance apparently exceeds lipreading-alone performance. After extensive learning, performance in lipreading alone or MESA plus lipreading is practically equivalent.

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