在行人街道交叉路口使用漂移扩散模型来建模认知负载:一种由神经证据支持的方法
Siwei Ma1, Xuedong Yan1, Lu Ma1
1MOT Key Laboratory of Transport Industry of Big Data Application Technologies for Comprehensive Transport, Beijing Jiaotong University, Beijing 100044, PR China.
Accident; analysis and prevention
|November 17, 2025
概括
认知负载会影响行人穿过街道的决策,因为它会减少对时间到达线索的响应能力. 这影响了道路安全,增加了碰撞风险和响应时间.
科学领域:
- 认知心理学 认知心理学
- 神经科学是一个神经科学.
- 交通运输安全运输安全
背景情况:
- 认知负载对行人街道交叉行为和道路安全产生负面影响.
- 这种影响背后的确切机制需要进一步调查.
研究的目的:
- 为了研究认知负载如何影响行人在过马路时的决策.
- 模拟认知负载对交叉行为和神经信号的影响.
主要方法:
- 进行了一项基于计算机的行人过道实验.
- 漂移-扩散模型被用来分析在认知负载下决策.
- 使用电脑电图 (EEG) 测量了中心-体阳性潜力 (CPP).
主要成果:
- 认知负载减弱了时间到达 (TTA) 对穿越概率的影响.
- 响应时间增加,碰撞概率上升,在认知负载下CPP振幅下降.
- 一个漂移-扩散模型表明,认知负载降低了对证据的响应能力,与CPP信号相关联.
结论:
- 认知负载通过降低对TTA等关键环境线索的敏感性,损害了行人安全.
- 对感知证据的反应能力降低是解释认知负载对非自动化任务影响的关键机制.
- 这些发现为认知负载对行人行为和道路安全的影响提供了神经计算解释.
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