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Erschienen in:
2007 | OriginalPaper | Buchkapitel
EEG-Related Changes in Cognitive Workload, Engagement and Distraction as Students Acquire Problem Solving Skills
verfasst von : Ronald H. Stevens, Trysha Galloway, Chris Berka
Erschienen in: User Modeling 2007
Verlag: Springer Berlin Heidelberg
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We have begun to model changes in electroencephalography (EEG)-derived measures of cognitive workload, engagement and distraction as individuals developed and refined their problem solving skills in science. For the same problem solving scenario(s) there were significant differences in the levels and dynamics of these three metrics. As expected, workload increased when students were presented with problem sets of greater difficulty. Less expected, however, was the finding that as skills increased, the levels of workload did not decrease accordingly. When these indices were measured across the navigation, decision, and display events within the simulations significant differences in workload and engagement were often observed. Similarly, event-related differences in these categories across a series of the tasks were also often observed, but were highly variable across individuals.