Dahlman Joakim, Sjörs Anna, Lindström Johan, Ledin Torbjörn, Falkmer Torbjörn
Linköping University, Linköping, Sweden.
Hum Factors. 2009 Feb;51(1):56-66. doi: 10.1177/0018720809332848.
The aim of the study was to investigate how motion sickness, triggered by an optokinetic drum, affects short-term memory performance and to explore autonomic responses to perceived motion sickness.
Previous research has found that motion sickness decreases performance, but it is not known how short-term memory in particular is affected.
Thirty-eight healthy participants performed a listening span test while seated in a rotating optokinetic drum. Measurements of motion sickness, performance, heart rate, skin conductance, blood volume pulse, and pupil size were performed simultaneously throughout the experiment.
A total of 16 participants terminated the trial because of severe nausea, and the other 22 endured the full 25 min. Perceived motion sickness increased over time in both groups but less among those who endured the trial. Short-term memory performance decreased toward the end for those who terminated but increased in the other group. Results from the measured autonomic responses were ambiguous.
We conclude that performance, measured as short-term memory, declines as perceived motion sickness progresses.
This research has potential implications for command and control personnel at risk of developing motion sickness.
本研究旨在调查由视动鼓引发的晕动病如何影响短期记忆表现，并探究对感知到的晕动病的自主反应。
先前的研究发现晕动病会降低表现，但具体短期记忆如何受影响尚不清楚。
38名健康参与者坐在旋转的视动鼓中进行听力广度测试。在整个实验过程中同时测量晕动病、表现、心率、皮肤电导率、血容量脉搏和瞳孔大小。
共有16名参与者因严重恶心而终止试验，另外22名参与者完成了全部25分钟的试验。两组中感知到的晕动病都随时间增加，但在完成试验的参与者中增加较少。对于终止试验的参与者，短期记忆表现在试验结束时下降，而在另一组中则增加。所测量的自主反应结果不明确。
我们得出结论，以短期记忆衡量的表现会随着感知到的晕动病的进展而下降。
本研究对有患晕动病风险的指挥控制人员具有潜在意义。
