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        강남규(Namkyoo Kang),하태현(Taehyun Ha),이상원(Sangwon Lee) 대한인간공학회 2019 대한인간공학회 학술대회논문집 Vol.2019 No.5

        Objective: This study examines the effects of visual and auditory cues on haptic illusion in mixed reality environments. Background: Previous studies have suggested that haptic in mixed reality was difficult to implement because it requires special wearable devices to generate haptics. To address this concern, we consider visual and auditory cues in mixed reality and examine its cross cross-modal effects generated by active and passive touches in mixed reality environments. Accordingly, we investigate possible ways of haptic illusion generation in mixed reality. Method: Two experiments with 3 auditory cue levels and 2 visual cue levels were designed to examine their effects on haptic illusion. Forty participants were asked to perform active and passive touch in mixed reality and to report their perception of roughness and stiffness illusion, respectively. Microsoft’s HoloLens was used for designing experimental materials. Results: Haptic illusion generated by active touch was significantly affected by auditory and visual cues. However, haptic illusion generated by passive touch was only significantly affected by auditory cues. Interaction effects for visual and auditory cues are not found for both active and passive touches. Conclusion: This study suggests how visual and auditory cues should be designed to generate haptic illusion for virtual objects in mixed reality (in terms of active and passive touch). Application: Findings of this study can be utilized to design haptic modality based on other sensations in mixed reality.

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