What's communication got to do with it? Gesture in children blind from birth.

It is widely accepted that gesture can serve a communicative function. The purpose of this study was to explore gesture use in congenitally blind individuals who have never seen gesture and have no experience with its communicative function. Four children blind from birth were tested in 3 discourse situations (narrative, reasoning, and spatial directions) and compared with groups of sighted and blindfolded sighted children. Blind children produced gestures, although not in all of the contexts in which sighted children gestured, and the gestures they produced resembled those of sighted children in both form and content. Results suggest that gesture may serve a function for the speaker that is independent of its impact on the listener.