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<b>Motivation</b> -- To develop the interaction design of an intelligent assistive device and environment for elderly people suffering from disease-related cognitive deficits within an interdisciplinary and international development team. <b>Research approach</b> -- Combining two different participatory development methods in order to involve both the(More)
Changing cognitive performance in human elderly users requires a real-time assessment of current performance to provide appropriate, i.e. adaptive, assistance without bothering them. In the presented approach, the assessment of cognitive performance is done by simulating the user's cognitive functions through a computational cog-nitive model that is highly(More)
Declaration I have written this thesis independently, solely based on the literature and tools mentioned in the chapters and the appendix. I hereby certify that the work reported in this thesis is my own and that work performed by others is appropriately cited. Abstract In this thesis I try to answer the question of how information spaces can be designed so(More)
Individuals who perform a task to achieve a certain goal undergo different affective states, depending on whether they advance towards their goal or not. In this context, those individuals who are able to perform well on a task are confronted with significantly more goal-advancing situations than individuals who perform poorly. As a result , well-performing(More)
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