健康受试者在静态全身滚动倾斜过程中对重力方向和身体轴的感知
Perceived direction of gravity and the body-axis during static whole body roll-tilt in healthy subjects.
作者信息
Tamura Atsushi, Wada Yoshiro, Inui Takuo, Shiotani Akihiro
机构信息
a Department of Otolaryngology - Head and Neck Surgery , National Defense Medical College , Tokorozawa , Japan.
b Department of Otolaryngology - Head and Neck Surgery , Nara Medical University , Kashihara , Japan.
出版信息
Acta Otolaryngol. 2017 Oct;137(10):1057-1062. doi: 10.1080/00016489.2017.1328744. Epub 2017 May 24.
OBJECTIVE
We used the subjective visual vertical (SVV) and two different subjective visual body axis (SVBA) methods to quantify roll-tilt perception under gravity, and investigated the characteristics of these methods during static roll-tilt. In addition, we independently developed a compact device to facilitate evaluation of SVBA in different gravitational environments.
METHODS
Ten male volunteers participated in this study. We created a roll-tilt environment using a flight simulator in a dark room. The cockpit of the simulator was tilted leftward or rightward (-30°, -20°, -10°, 0°, 10°, 20° and 30°) in each randomly ordered trial. We quantified roll-tilt perception such that the experiment was conducted under 21 different conditions per participant.
RESULTS
We found no significant differences among the SVV error and the two types of SVBA error.
CONCLUSIONS
The SVV and the SVBA methods may be useful for evaluating subjective roll-tilt perception.
目的
我们使用主观视觉垂直线（SVV）和两种不同的主观视觉身体轴（SVBA）方法来量化重力作用下的侧倾感知，并研究静态侧倾过程中这些方法的特点。此外，我们自主研发了一种紧凑型设备，以方便在不同重力环境下评估SVBA。
方法
10名男性志愿者参与了本研究。我们在暗室中使用飞行模拟器创建了一个侧倾环境。在每个随机排序的试验中，模拟器驾驶舱向左或向右倾斜（-30°、-20°、-10°、0°、10°、20°和30°）。我们对侧倾感知进行量化，以便每位参与者在21种不同条件下进行实验。
结果
我们发现SVV误差和两种类型的SVBA误差之间没有显著差异。
结论
SVV和SVBA方法可能有助于评估主观侧倾感知。
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