Journal of Digital Convergence (디지털융복합연구)

The Society of Digital Policy and Management (한국디지털정책학회)
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Effects of Virtual Reality Images on Body Stability : Focused on Hand Stability

VR 영상이 신체 안정성에 미치는 영향 : 손 안정성을 중심으로

  • Received : 2017.07.01
  • Accepted : 2017.08.20
  • Published : 2017.08.28
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Abstract

The purpose of this paper is to present the effect of image stimulation on body stability as a conceptual model and to investigate the effect of image stimulus(2D, VR) on body stability(hand stability) through experiments Recently, stereoscopic images such as virtual and augmented reality are combined with smart phones and exercise equipments, and the diffusion is becoming active. The possibility of a safety accident or human error is also increasing as it temporarily affects the balance of the body and hand stability after the image stimulus is removed. The conceptual model is presented based on the results of previous studies. Based on the experimental results, the conceptual model has been explained in combination with the human information processing process and cognitive resource models that take place in the brain. Twenty subjects were exposed to 2D and VR stimuli, and display fatigue was measured by cybersickness questionnaire and hand stability by hand steadiness tester. Experimental results show that VR images induce higher display fatigue and lower hand stability than 2D. In this study, it is meaningful that hand stability according to image type and display fatigue level which have not been tried yet is revealed through conceptual model and experiment.

본 논문의 목적은 영상자극이 신체 안정성에 미치는 영향을 개념 모델(Conceptual Model)로 제시하고, 시청자에게 제공되는 영상의 종류(2D, VR)에 따라 신체 안정성(손 안정성)에 미치는 영항을 실험을 통해 알아보는 것이다. 최근에 VR과 같은 입체 영상이 스마트폰이나 운동기구 등과의 결합이 활발해지고 있고, 영상자극이 제거된 후 일시적으로 신체 균형 및 손 안정성에 영향을 미침에 따라 안전사고나 인적오류의 가능성도 높아지고 있다. 개념모델은 기존 연구결과들을 바탕으로 제시되었고, 실험결과를 기반으로 뇌에서 일어나는 인간정보처리과정 및 인지적 자원모델과 결합되어 설명되었다. 20명의 피실험자는 2D, VR 자극에 노출 된 후 영상피로가 Cybersickness 질문지를 통해, 손 안정성은 Hand Steadiness Tester를 이용해 측정되었다. 실험결과 2D보다 VR 영상이 높은 영상피로, 낮은 손 안정성을 유발하였다. 본 연구는 아직 시도되지 않은 영상 종류 및 영상피로 수준에 따른 손 안정성을 개념모델과 실험을 통해 밝혔다는데 의의가 있다.

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