@article{driscoll_liu_huang_2023, title={1-D Manual Tracing Based on a High Density Haptic Stimulation Grid - a Pilot Effort}, ISSN={["2835-9518"]}, url={http://dx.doi.org/10.1109/whc56415.2023.10224505}, DOI={10.1109/WHC56415.2023.10224505}, abstractNote={Lower limb amputees lack the neurological path-ways needed for perception of how their prosthetic limbs are interacting with the environment, leading to a lack of confidence in their devices and reduced balancing capabilities. Sensory substitution methods, such as vibrotactile and electrotactile feedback applied to unaffected body segments offer a potential way to restore some of the lost information pathways. While high resolution haptic stimulation grids have become commercially available, few studies have tried to make use of these devices to provide more intuitive sensory substitution methods. This study developed an encoding approach, which is based on the illusory “phantom actuator” phenomenon, to convert 1-D position information to a wearer through a bHaptics Tactsuit. By evaluating performance of 1-D manual tracking task among 14 participants under the proposed approach and a traditional amplitude modulation approach, we demonstrated an improvement of velocity tracing accuracy (p=0.0375) with the proposed approach, although the proposed approach did not lead to significant improvement in the position tracing accuracy.}, journal={2023 IEEE WORLD HAPTICS CONFERENCE, WHC}, publisher={IEEE}, author={Driscoll, Brendan and Liu, Ming and Huang, He}, year={2023}, pages={375–381} }
 @article{yuan_bai_driscoll_liu_huang_feng_2022, title={Standing and Walking Attention Visual Field (SWAVF) task: A new method to assess visuospatial attention during walking}, volume={104}, ISSN={["1872-9126"]}, url={http://dx.doi.org/10.1016/j.apergo.2022.103804}, DOI={10.1016/j.apergo.2022.103804}, abstractNote={Visuospatial attention during walking has been associated with pedestrian safety and fall risks. However, visuospatial attention measures during walking remained under-explored. Current studies introduced a newly-developed Standing and Walking Visual Attention Field (SWAVF) task to assess visuospatial attention during walking and examined its reliability, validity, and stability. Thirty young adults completed a traditional computerized Attention Visual Field (AVF) task while sitting, and the SWAVF task under walking and standing settings. Nine participants also performed the SWAVF task under additional distraction conditions. Results showed good split-half reliability during standing (r = 0.70) and walking (r = 0.69), moderate concurrent validity with the sitting AVF task (r = 0.42), moderate convergent validity between the standing and walking settings (r = 0.69), good construct validity, and moderate rank-order stability (r = 0.53). Overall, the SWAVF task showed good psychometric properties. Potential applications to the evaluation of prosthetic and other exoskeleton devices, smart glasses, and ground-level traffic lights or signs were discussed.}, journal={APPLIED ERGONOMICS}, publisher={Elsevier BV}, author={Yuan, Jing and Bai, Xiaolu and Driscoll, Brendan and Liu, Ming and Huang, He and Feng, Jing}, year={2022}, month={Oct} }