College of Behavioral & Social Sciences

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The collections in this community comprise faculty research works, as well as graduate theses and dissertations..

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    The Cost of Turning Heads - The Design and Evaluation of Vocabulary Prompts on a Head-Worn Display to Support Persons with Aphasia in Conversation
    (2015) Williams, Kristin; Findlater, Leah; Geography/Library & Information Systems; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    Symbol-based dictionaries could provide persons with aphasia a resource for finding needed words, but they can detract from conversation. This research explores the potential of head-worn displays (HWDs) to provide glanceable vocabulary support that is unobtrusive and always-available. Two formative studies explored the benefits and challenges of using a HWD, and evaluated a proof-of-concept prototype in both lab and field settings. These studies showed that a HWD may allow wearers to maintain focus on the conversation, reduce reliance on external support (e.g., paper and pen, or people), and minimize the visibility of support by others. A third study compared use of a HWD to a smartphone, and found preliminary evidence that the HWD may offer a better overall experience with assistive vocabulary and may better support the wearer in advancing through conversation. These studies should motivate further investigation of head-worn conversational support.
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    Web Navigation Strategy and Performance
    (2007-05-06) Campbell, Susan Grace; Norman, Kent L; Psychology; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    The task of web navigation, or finding information on the World Wide Web, appears to depend on spatial cognition and problem solving. Spatial visualization ability is commonly considered to determine efficiency of performance on web search and navigation tasks. In order to investigate the mechanism for this improved efficiency, we developed two conceptual models of the relationship between strategy choice and spatial visualization ability. We found mixed results in three experiments. Of the first two, one suggested that spatial visualization ability predicts performance on web navigation tasks, and one suggested that there was no relationship. In both of these experiments, we also found that web navigation task performance was heavily dependent on strategy. The third experiment showed a relationship between strategy choice and performance as well as between spatial visualization ability and performance, but it did not suggest that spatial visualization ability determines strategy choice.