motion sickness susceptibility
晕动症易感性，个体在感官冲突条件下发生晕动症的倾向或易感程度，是 HCI 与人体工学研究中一项重要的个体差异变量。
English Definition
"An individual's predisposition or vulnerability to experiencing motion sickness under conflicting sensory conditions; a key individual-difference variable in HCI and ergonomics research."
用法说明 · 针对中文母语者
在车载系统、VR、模拟器等体验设计中常作为被试分层（stratification）或协变量；常用量表为 MSSQ（Motion Sickness Susceptibility Questionnaire）。
常见错误
- ·把它当作二元状态（有/无），实际是一个连续的程度
- ·误以为问卷得分能完全替代实验中的实测易感性
真实用例 · 3 条
"A main difficulty in analyzing data from these studies is how to incorporate the individual difference in motion-sickness susceptibility."
"Since susceptibilities are markedly different among subjects, within-subject design experiments are preferred."
"However, since motion-sickness susceptibilities are markedly different among individuals, stratification based on questionnaire score is not reliable enough, and the results highly depend on subject assignments."