Perceived direction of gravity and the body-axis during static whole body roll-tilt in healthy subjects.
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...
| Publicado en: | Acta Oto-Laryngologica Vol. 137; no. 10; pp. 1057 - 1063 |
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| Autores principales: | , , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Oct2017
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| Acceso en línea: | Ver este registro en EBSCOhost |
| Sumario: | 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（SVV）和两种不同的主观视觉体轴（SVBA）方法对重力下的滚动-倾斜感知进行量化, 并在静态滚-倾过程中研究了这些方法的特点。 此外, 我们还独立开发了一种精致设备, 便于在不同重力环境中对SVBA进行评估。 方法：10名男性志愿者参加了本项研究。 我们在黑暗的房间里使用飞行模拟器创建了一个滚动-倾斜环境。 在每个随机试验中, 模拟器的驾驶舱向左或向右（-30°、-20°、-10°、0°、10°、20°和30°）倾斜。 我们对倾斜感知进行量化, 每个参与者的实验都在21个不同的条件下进行。 结果：我们发现SVV误差与两种类型的SVBA误差之间并没有显著性差异。 结论：SVV和SVBA方法对评估主观倾斜感知可能都有用。 |
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