Laura A. Thompson
Gestures and visible speech cues are often available to listeners to aid their comprehension of the speaker’s meaning. However, visual communication cues are not always beneficial over-and-above the audible speech cues. My goal is to outline several types of constraints which operate in the human cognitive processing system that bear on this question: When do visual language cues (visible speech and gestures) provide an aid to comprehension, and when do they not? Research on visual-spoken language comprehension carried out in my lab over recent years is described and recommendations will be made concerning the design of multi-modal interfaces.