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Anne Köpsel Päivi Majaranta Poika Isokoski Anke Huckauf 《Behaviour & Information Technology》2016,35(12):1044-1062
Modern interaction techniques like non-intrusive gestures provide means for interacting with distant displays and smart objects without touching them. We were interested in the effects of feedback modality (auditory, haptic or visual) and its combined effect with input modality on user performance and experience in such interactions. Therefore, we conducted two exploratory experiments where numbers were entered, either by gaze or hand, using gestures composed of four stroke elements (up, down, left and right). In Experiment 1, a simple feedback was given on each stroke during the motor action of gesturing: an audible click, a haptic tap or a visual flash. In Experiment 2, a semantic feedback was given on the final gesture: the executed number was spoken, coded by haptic taps or shown as text. With simultaneous simple feedback in Experiment 1, performance with hand input was slower but more accurate than with gaze input. With semantic feedback in Experiment 2, however, hand input was only slower. Effects of feedback modality were of minor importance; nevertheless, semantic haptic feedback in Experiment 2 showed to be useless at least without extensive training. Error patterns differed between both input modes, but again not dependent on feedback modality. Taken together, the results show that in designing gestural systems, choosing a feedback modality can be given a low priority; it can be chosen according to the task, context and user preferences. 相似文献
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A patient who was given tamoxifen as adjuvant treatment for breast cancer developed very severe hypertriglyceridaemia, hypercholesterolaemia and acute pancreatitis after being treated for 4 months. The hyperlipidaemia was corrected after cessation of the tamoxifen and the institution of gemfibrozil treatment. This patient appears to have type IV hyperlipidaemia. It is suggested that, in such patients, tamoxifen should be used with extreme caution because the weakly oestrogenic effect of this agent can cause severe and life threatening hyperlipidaemia. 相似文献
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Poika Isokoski Markus Joos Oleg Spakov Benoît Martin 《Universal Access in the Information Society》2009,8(4):323-337
The quality and availability of eye tracking equipment has been increasing while costs have been decreasing. These trends
increase the possibility of using eye trackers for entertainment purposes. Games that can be controlled solely through movement
of the eyes would be accessible to persons with decreased limb mobility or control. On the other hand, use of eye tracking
can change the gaming experience for all players, by offering richer input and enabling attention-aware games. Eye tracking
is not currently widely supported in gaming, and games specifically developed for use with an eye tracker are rare. This paper
reviews past work on eye tracker gaming and charts future development possibilities in different sub-domains within. It argues
that based on the user input requirements and gaming contexts, conventional computer games can be classified into groups that
offer fundamentally different opportunities for eye tracker input. In addition to the inherent design issues, there are challenges
and varying levels of support for eye tracker use in the technical implementations of the games. 相似文献
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