Designing computer-based learning contents: influence of digital zoom on attention |
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| Authors: | Manuela Glaser Dominik Lengyel Catherine Toulouse Stephan Schwan |
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| Institution: | 1.Leibniz-Institut für Wissensmedien,Tuebingen,Germany;2.Brandenburgische Technische Universit?t Cottbus-Senftenberg,Cottbus,Germany;3.Brandenburgische Technische Universit?t Cottbus-Senftenberg,Cottbus,Germany |
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| Abstract: | In the present study, we investigated the role of digital zoom as a tool for directing attention while looking at visual learning material. In particular, we analyzed whether minimal digital zoom functions similarly to a rhetorical device by cueing mental zooming of attention accordingly. Participants were presented either static film clips, film clips with minimal zoom-ins, or film clips with minimal zoom-outs while eye movements were recorded. We hypothesized that minimal zoom-ins should lead to more gaze coherence, to longer dwell times as an indicator of more elaborative processing, and to fewer transitions as an indicator of less mental integration. Zoom-outs, on the other hand, were expected to have opposite effects. Results showed that zoom-ins increase gaze coherence and dwell times on the center parts of the depictions while decreasing transitions of pictorial elements from the center and the context areas. In contrast, patterns of results from zoom-outs and static presentations were similar to a large degree, indicating that zoom-ins and zoom-outs do not operate in a complementary fashion. Theoretical and practical implications of the present results are discussed. |
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