Communication through diagrams: division of labor between gestures and arrows

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2014
Coşkun, Melda
In this study, we aim at studying the relation between arrow production and gesture production in various multimedia teaching environments. Twenty-four participants, who were all experienced educators, were asked to teach a topic of their choice, as if he teaches to a learner audience. They taught the same topic in the same way in three experimental conditions: (i) Teaching on the board, (ii) Pen-and-paper teaching, (iii) Teaching by a tablet. All experiment sessions were videotaped. For the analysis, gestures and arrows were annotated. Arrows were classified into three groups: deictic arrows direct attention to the specific area, relational arrows connect two representations, and iconic arrows present motion, force, physical representations, and processes in a depiction. Gestures were also divided into three groups: deictic gestures point to entities, iconic gestures present picturable aspects of semantic content, and finally beat gestures are speech-related rhythmic hand movements. The results indicated that speakers produced more gestures and fewer arrows in the board session. This difference decreased in the paper session and reversed itself in the tablet session. Similar trends were also found in the relation between deictic and iconic gestures together compared to all arrows, and iconic gestures compared to iconic arrows. These results support the hypothesis that there is a trade-off between arrow and gesture production. These results also suggest that arrows and gestures are used for similar communicative purposes in different modalities.

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Citation Formats
M. Coşkun, “Communication through diagrams: division of labor between gestures and arrows,” M.S. - Master of Science, Middle East Technical University, 2014.