Development of multimodal discourse comprehension: cohesive use of space by gestures

Abstract

This study examined how well 5-, 6-, 10-year-olds and adults integrated information from spoken discourse with cohesive use of space in gesture, in comprehension. In Experiment 1, participants were presented with a combination of spoken discourse and a sequence of cohesive gestures, which consistently located each of the two protagonists in two distinct locations in gesture space. Participants were asked to select an interpretation of the final sentence that best matched the preceding spoken and gestural contexts. Adults and 10-year-olds performed better than 5-year-olds, who were at chance level. In Experiment 2, another group of 5-year-olds was presented with the same stimuli as in Experiment 1, except that the actor showed hand-held pictures, instead of producing cohesive gestures. Unlike cohesive gestures, one set of pictures was self-explanatory and did not require integration with the concurrent speech to derive the referent. With these pictures, 5-year-olds performed nearly perfectly and their performance in the identifiable pictures was significantly better than those in the unidentifiable pictures. These results suggest that young children failed to integrate spoken discourse and cohesive use of space in gestures, because they cannot derive a referent of cohesive gestures from the local speech context.

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