視引發動暈：觀看3D電影之身體擺動與動暈

Visually Induced Motion Sickness: Body Sway and Motion Sickness while Watching a 3D Movie

孔維靖(Wei-Ching Kung) ； 張智惠(Chih-Hui Chang)

《大專體育學刊》 15卷2期 (2013/06) Pp. 160-168

https://doi.org/10.5297/ser.1502.004

摘要

本研究目的是利用生態取向探討個體暴露於3D 電影的視覺刺激時之身體擺動 （body sway） 與動暈（motion sickness） 並檢驗動暈的姿勢不穩定理論 （postural instability theory） （Riccio & Stoffregen, 1991）。招募自願參加之男性、女性各15名，共30名實驗參與者（平均年齡23.3 ± 2.3歲，平均身高166.6 ± 10.3公分，平均體重61.4 ± 11.4公斤），以站姿觀看3D電影至多40分鐘，過程中若出現不適或任何原因皆可立即停止實驗，將磁性動作追蹤系統 （Flock of Birds, Ascension Technologies, Inc., Burlington, VT） 分別黏貼於頭部與第七頸椎處，以記錄身體擺動的情形，以模擬器動暈問卷 （Simulator Sickness Questionnaire） 代表動暈症狀嚴重性，並根據其口語自陳動暈與否，將其歸類為動暈組或未動暈組。結果發現，18％的人出現動暈，動暈組的動暈症狀嚴重性顯著高於未動暈組，且不論動暈組或未動暈組在觀看3D電影至多40分鐘後，其動暈症狀皆高於實驗前，動作結果方面，在頭部的左右及垂直方向，動暈組的身體位移變異性大於未動暈組。以站姿觀看3D電影至多40分鐘後，引起約1／5的人動暈，動暈者的動作較未動暈者不穩定。本研究結論：本研究證實使用站姿觀看3D電影會導致部分的人動暈，並支持動暈的姿勢不穩定理論。

關鍵字

生態取向 ； 直接知覺 ； 姿勢不穩定理論

並列摘要

The purpose of this study was to investigate the body sway and motion sickness individuals while exposed to the visual stimulus of a 3D movie, and examine the postural instability theory (Riccio & Stoffregen, 1991), which extended from the ecological approach. We recruited thirty participants (fifteen males and fifteen females, aged = 23.3 ± 2.3 years, height = 166.6 ± 10.3 cm and weight = 61.4 ± 11.4 kg). Participants stood and watched a 3D movie continuously for up to 40 minutes and they were instructed that they could terminate if they felt uncomfortable or for any reasons. We used the magnetic tracking system (Flock of Birds, Ascension Technologies, Inc., Burlington, VT) to collect the movement data. One receiver was attached to a bicycle helmet of the individual and the other one to the 7th cervical vertebra. The Simulator Sickness Questionnaire was used to represent the symptom severity of motion sickness and participants were divided into the sick and well groups according to their self-reported data. Results indicated that the motion sickness incidence rate was 18%. The severity of motion sickness in the sick group was higher than that of the well group, and both groups had higher symptom severity after watching the movie. Furthermore, the variability of head movement in sick group was higher than the other group in the mediolateral and vertical axis. We found that watching a 3D movie induced some people motion sickness, and the study supported the postural instability theory of motion sickness.

並列關鍵字

ecological approach ； direct perception ； postural instability theory

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