Elizabeth S. Redden

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In a meta-analysis of 43 studies, we examined the effects of multimodal feedback on user performance, comparing visual-auditory and visual-tactile feedback to visual feedback alone. Results indicate that adding an additional modality to visual feedback improves performance overall. Both visual-auditory feedback and visual-tactile feedback provided(More)
In this paper, we present three field-based evaluations of a tactile land navigation system. In Experiment 1, we transition from a laboratory setting to rugged terrain used to train US Army soldier land navigation. Navigation in this challenging terrain requires careful attention to one's surroundings. Participants navigated 3 waypoints along 600 meters(More)
Information display systems have become increasingly complex and more difficult for human cognition to process effectively. Based upon Wicken's Multiple Resource Theory (MRT), information delivered using multiple modalities (i.e., visual and tactile) could be more effective than communicating the same information through a single modality. The purpose of(More)
In response to operational requirements for smaller robotic controller devices for use by dismounted US Army soldiers, three types of robot controller navigation map display configurations were evaluated for effects on beyond line-of-sight robotic navigation tasks. We predicted better performance with the larger split screen display that presents both a map(More)
In this paper we discuss plans initiated to develop and evaluate multisensory displays (i.e. visual, haptic, tactile) to support dismounted (i.e., not in vehicle) Soldier movement, communication, and targeting. Human factors studies of an array of military operational roles have shown significant demand for focal visual attention that diminishes the(More)
Future U.S infantry capabilities, coupled with network-centric warfare concepts, will enable huge advancements in information distribution and display, and will provide a combat advantage. However, the distribution of large amounts of information, especially to the visual channel may result in information bottlenecks and cognitive overload. Utilizing other(More)
The literature is replete with studies that investigated the effectiveness of vibrotactile displays; however, individual studies in this area often yield discrepant findings that are difficult to synthesize. In this paper, we provide an overview of a comprehensive review of the literature and meta-analyses that organized studies to enable comparisons of(More)