Spatial Orientation and Motor Skills: How to Flip Switches "Down" in Weightlessness?
试验速览
- 阶段
- 不适用
- 入组人数
- 18
- 试验地点
- 1
- 主要终点
- Direction of flip switch measured with the circular instrument panel
研究概览
简要总结
The purpose of the study is to investigate spatial orientation in weightlessness as it manifests not in perception but rather in motor performance by direction and reaction time of flip switch.
Hypotheses are that flip switch:
- will be biased towards visual allocentric cues when those are available;
- will be biased towards the egocentric reference when tactile cues are added;
- will be dominated by egocentric cues when visual cues are not available;
- will be delayed and more variable when confirmatory gravitational cues are absent;
- will be faster and more reliable in absence of conflicting gravitational cues, and even more so when tactile cues are added;
- The difference will be more pronounce when tested under Dual-task condition
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 盲法
- None
入排标准
- 年龄范围
- 20 Years 至 65 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Healthy volunteers (men or women)
- •Aged from 20 to 65
- •Affiliated to a Social Security system and, for non-French resident, holding a European Health Insurance Card (EHIC)
- •Who accepted to take part in the study
- •Who have given their written stated consent
- •Who has passed a medical examination similar to a standard aviation medical examination for private pilot aptitude (JAR FCL3 Class 2 medical examination). There will be no additional test performed for subject selection.
- •Subjects will be staff member of the team or of other teams participating in the parabolic flight campaign
排除标准
- •Person who took part in a previous biomedical research protocol, of which exclusion period is not terminated
- •Person who has already participated in a parabolic flight
- •Pregnant women
研究组 & 干预措施
spatial orientation in weightlessness
subjects will be asked to flip a series of switches into the "off" position. On Earth, the "off" position corresponds to "down" in all three reference frames: the visual allocentric, the non-visual allocentric as well as the egocentric frames. We expect that flip direction will be dominated by visual allocentric cues when those are available, will be delayed and more variable when confirmatory gravitational cues are absent, and will be biased towards the egocentric reference when tactile cues are added
干预措施: FLIP SWITCHES "DOWN" IN WEIGHTLESSNESS (Other)
结局指标
主要结局
Direction of flip switch measured with the circular instrument panel
时间窗: baseline
reaction time of flip switch measured with a chronometer
时间窗: baseline
次要结局
未报告次要终点