基于眼动追踪测量认知负荷变化的犯罪心理测试

目的探索可用于认知犯罪心理测试的眼动指标及测试方法。方法对被测人进行视觉、听觉双通路-双任务模拟案件犯罪心理测试,要求被测人对相同问题分别进行诚实回答和欺骗回答,对不同眼动数据和行为数据进行分析。结果注视点离靶、眼跳次数、眨眼间隔随认知负荷（实施欺骗时）增加而增大,并未发现瞳孔变化与答题策略间存在特定关系。结论注视点、离靶距离等眼动指标能有效分析认知负荷变化且应用于认知犯罪心理测试。

Lie Detection Using Eye Movement Tracking by Monitoring Cognitive Load Variation

Objective To explore reliable eye movement indexes and test method that can be used for cognitive lie detection. Method The subjects were required to answer the same series of questions twice （honestly and deceptively） while being monitored by visual and auditory dual-channel dual-tasking test. The eye movement data and behavioral data were analyzed to study the cognitive load. Results The gaze displacement from the target, the number of saeeade and the blink interval increased with the cognitive load （when deception occurred）. No specific relationship was found between pupil dilation and answering strategies. Conclusion Eye movement tracking technique can be used to monitor cognitive load variation, which is effective in lie detection.