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---
title: "Motion Sickness Threshold"
type: concept
tags: []
last_updated: 2026-04-25
---
## Definition
运动病阈值Motion Sickness Threshold——在 XR 环境中,导致用户产生眩晕、恶心等生理不适的感官冲突临界点。通过设计手段将其最小化是沉浸式 XR 体验成功的关键指标。
## Key Factors Affecting Threshold
- **视觉-前庭冲突**:眼睛感知的运动与内耳前庭系统感知的运动不一致
- **延迟**:交互响应延迟超过 20ms 时眩晕感显著增加
- **视野晃动**:虚拟相机不稳定的晃动或抖动
- **自由漂浮运动**:用户缺乏物理参照系的虚拟移动
## Mitigation Strategies
- **固定视角设计**:用户视角固定,通过控制器移动而非身体移动
- **约束驱动控制**[[Constraint-Driven-Control-Mechanics]]):消除无物理意义的运动
- **座舱环境锚定**[[Cockpit-Ergonomics]]):提供稳定的环境参照系
- **低延迟渲染**:保持 20ms 以下的交互响应延迟
## Related Concepts
- [[Constraint-Driven-Control-Mechanics]]:约束驱动控制——降低运动病阈值的主要手段
- [[Cockpit-Ergonomics]]:座舱人体工学——通过环境锚定降低阈值
- [[Spatial-Computing]]:空间计算——底层技术支撑
## Sources
- [[xr-cockpit-interaction-specialist]]