Novel Modalities for Bimanual Scrolling on Tablet Devices

Abstract

Abstract. This paper presents two studies investigating the use of novel modalities for bimanual vertical scrolling on tablet devices. Several bimanual interaction techniques are presented, using a combination of physical dial, touch and pressure input, which split the control of scrolling speed and scrolling direction across two hands. The new interaction techniques are compared to equivalent unimanual techniques in a controlled linear targeting task. The results suggest that participants can select targets significantly faster and with a lower subjective workload using the bimanual techniques.

Getting Back To Basics: Bimanual Interaction on Mobile Touch Screen Devices

“…McLachlan [17] elucidates that while at least one hand is required to hold touch screen deceives it can do so in a variety of ways. Consequently, Wagner [1] argue that bimanual solutions should take into account a range of potential user grips.…”

Bimanual input for multiscale navigation with pressure and touch gestures

“…Two-handed interaction is particularly suited when the device is used in landscape mode ( Figure 1) [7,8,9,12,14]. The study performed by Pelurson and Nigay [12] on a smartphone compared 6 modalities (touch, tilt, pressure and peephole modalities) for fast navigation in a bifocal view, each modality being followed by drag-flick gestures for precise pointing.…”

“…McLahlan and Brewster [8] also studied two-handed navigation using pressure and touch on a tablet. They explored pressure used as a NDH modality and touch as a DH modality.…”

“…MacLahlan et al [7] further extended this work by studying another type of combination of the two modalities: pressure is used as a transient NDH modality, while touch is used as a DH modality to control the selection. As opposed to the previous study [8], pressure is used as an auxiliary input modality, supplementing but not replacing touch.…”

“…First the users can use the pressure-based modality accurately enough for navigation using their DH on a smartphone [14] and their NDH on a smartphone [12] and on a tablet [7]. Second pressure can be controlled by the NDH holding the tablet, enabling touch interaction with the DH [7,8]. We extend this work by focusing on multiscale navigation on a smartphone.…”