ABSTRACT
The AB model predicts that gestures correlate with syntagmata in time and form. In turn, this correlation suggests that gestures can be regarded as externalized traces of the internal speech programming process. The onset of gestures tends to coincide with the boundaries of sensory-motor segments in the concurrent speech. Gesture ends correlate less closely with these segments. The peaks of gesture movement tend to coincide with the conceptual focal point of the corresponding strong component. The morphology of gestures tends to be different corresponding to aspects of the meaning of the concurrent sensory-motor segments. The internal complexity of the corresponding sensory-motor segments correlates with the probability that gestures occur, supporting the hypothesis that processing load is a stimulus to gesturing. These results are taken as evidence for the AB model and for its extension to the generation of gestures.
