与说话相关的认知负载降低了凝视行为质量
Takuya Suzuki1,2, Takaji Suzuki3, Shintaro Uehara3
1Department of Rehabilitation, Fujita Health University Hospital, Aichi, Japan.
PloS one
|October 6, 2025
概括
在驾驶时说话显著延迟视觉反应和眼睛运动控制. 这种认知分心会影响视觉运动过程,通过降低对视觉信息的反应时间,可能会增加撞车风险.
科学领域:
- 认知神经科学是一种认知神经科学.
- 驾驶过程中的人类因素
- 视觉运动控制
背景情况:
- 驾驶时说话是一种已知的认知分心,增加了碰撞风险.
- 驾驶需要集成的视觉运动过程,包括目光行为,认知和身体行为.
- 与谈话相关的认知负载对眼神行为质量的具体影响尚不清楚.
研究的目的:
- 为了研究说话带来的认知负载如何影响视觉运动任务期间的目光行为质量.
- 为了确定说话是否会干扰眼动的启动和控制.
- 了解视觉反应受损对驾驶性能缺陷的贡献.
主要方法:
- 健康的参与者从中向外移动眼睛,将眼睛移动到外围的视觉目标.
- 在三个条件下执行任务:说话,听音频和控制 (没有任务).
- 测量了反应时间,运动时间和固定精度.
主要成果:
- 与倾听或控制条件相比,说话显著延迟了反应时间,运动时间和固定获取.
- 在说话时的认知负载干扰了控制眼睛运动的神经过程.
- 这些延迟表明视觉反应受损,眼睛运动控制不那么准确.
结论:
- 与说话相关的认知负载显著扰乱视觉运动控制,特别是眼动启动和执行.
- 视觉反应延迟和说话时眼睛运动控制受损可能导致驾驶性能降低.
- 了解这些影响对于制定减轻驾驶时认知分心风险的策略至关重要.
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