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An experimental setup to test dual-joystick directional responses to vibrotactile stimuli

By Lorenzo Scalera, Stefano Seriani, Paolo Gallina, Massimiliano Di Luca and Alessandro Gasparetto

Abstract

In this paper we investigate the influence of the location of vibrotactile stimulation in triggering the response made using two\ud handheld joysticks. In particular, we compare performance with stimuli delivered either using tactors placed on the palm or on the back\ud of the hand and with attractive (move toward the vibration) or repulsive prompts (move away from the vibration). The experimental\ud set-up comprised two joysticks and two gloves, each equipped with four pager motors along the cardinal directions.\ud In different blocks, fifty-three volunteers were asked to move the joysticks as fast as possible either towards or away with respect to the\ud direction specified by a set of vibrating motors. Results indicate that participants performed better with attractive prompts (i.e.\ud responses were faster and with fewer errors in conditions where participants were asked to move the joysticks in the direction of the felt\ud vibration) and that the stimulation delivered on the back of the hand from the gloves gives better results than the stimulation on the\ud palm delivered by the joysticks. Finally, we analyse the laterality, the relation between correct responses and reaction times, the\ud direction patterns for wrong responses and we perform an analysis on the Stimulus-Response Compatibility and on the training effect

Topics: attractive / repulsive prompt, Data acquisition, haptics, joysticks, Manipulators, Mobile robots, Potentiometers, reaction time, Training, Vibrations, vibrotactile stimuli, Human-Computer Interaction, Computer Science Applications1707 Computer Vision and Pattern Recognition
Year: 2018
DOI identifier: 10.1109/TOH.2018.2804391
OAI identifier: oai:arts.units.it:11368/2917721
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