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Most haptic peripheral displays provide active feedback. We present BubbleWrap, which simulates different degrees of softness to display low notification levels as dynamic passive haptic feedback. When combined with active feedback, interface designers can easily control the level of notification to users. BubbleWrap consists of a matrix of electro-magnetic actuators, enclosed in fabric, with individually controllable cells that expand and contract. Our experiment showed that users can reliably discriminate among three softness levels, for both physical and BubbleWrap conditions. Haptic displays like BubbleWrap can help interaction designers to offer better control of attention management, from discrete and non-invasive to attention-grabbing alerts.
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The communication infrastructure around us is a rich but fragmented environment made of separated services corresponding to different levels of engagement. The multiscale approach to communication proposes instead to create systems that support a variable degree of engagement and smooth transitions between degrees. This paper reports on the design and evaluation of such a system called Pêle-Mêl...
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Facilitating the acquisition of small targets is an active area of research. Despite the usefulness of the techniques proposed so far, we show why this topic can benefit from more fundamental work. We investigate three factors that might account for the observed drop in performance when selecting small targets: motor accuracy, visual legibility and quantization. Our findings suggest that visual...
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