L
Leon Barnard
Researcher at Georgia Institute of Technology
Publications - 10
Citations - 543
Leon Barnard is an academic researcher from Georgia Institute of Technology. The author has contributed to research in topics: Mobile computing & Mobile device. The author has an hindex of 8, co-authored 10 publications receiving 521 citations.
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Journal ArticleDOI
Capturing the effects of context on human performance in mobile computing systems
TL;DR: The results indicate that common contextual variations can lead to dramatic changes in behavior and that interactions between contextual factors are also important to consider.
Journal ArticleDOI
An empirical comparison of use-in-motion evaluation scenarios for mobile computing devices
TL;DR: Preliminary guidelines indicate that using a treadmill for mobile evaluation can yield representative performance measures,whereas a controlled walking scenario is more likely to adequately simulate the atual user experience.
Proceedings ArticleDOI
Older adults and visual impairment: what do exposure times and accuracy tell us about performance gains associated with multimodal feedback?
Julie A. Jacko,Ingrid U. Scott,François Sainfort,Leon Barnard,Paula J. Edwards,V. Kathlene Emery,Thitima Kongnakorn,Kevin P. Moloney,Brynley S. Zorich +8 more
TL;DR: Results indicated that for some cases, non-visual (e.g. auditory or haptic) and multimodal (bi- and trimodal) feedback forms demonstrated significant performance gains over the visual feedback form, for both AMD and normally sighted users.
Proceedings ArticleDOI
Toward achieving universal usability for older adults through multimodal feedback
V. Kathlene Emery,Paula J. Edwards,Julie A. Jacko,Kevin P. Moloney,Leon Barnard,Thitima Kongnakorn,François Sainfort,Ingrid U. Scott +7 more
TL;DR: Based on performance benefits for older adults seen in this experiment, future research should extend investigations to effectively integrate multimodal feedback into GUI interfaces in order to improve usability for this growing and diverse user group.
Journal ArticleDOI
The effects of multimodal feedback on older adults' task performance given varying levels of computer experience
Julie A. Jacko,V. Kathlene Emery,Paula J. Edwards,Mahima Ashok,Leon Barnard,Thitima Kongnakorn,Kevin P. Moloney,François Sainfort +7 more
TL;DR: Based on performance benefits for older adults seen in this experiment, future research should extend investigations to effectively integrate multimodal feedback into GUI interfaces in order to improve usability for this growing and diverse user group.