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- 2016
基于事件相关电位近似熵识别心理意识真实性的研究
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Abstract:
研究受试者在隐藏信息测试（CIT）模式下心理意识真实性识别。通过对15名受试者进行测试并记录其事件相关（ERP）脑电信号，对不同刺激信息诱发的ERP信号的近似熵进行分析。研究结果显示，当刺激信息出现时，近似熵出现了明显的下降趋势；刺激任务完成后，近似熵回升到刺激前水平。以近似熵下降百分比作为近似熵下降程度的量化参数，对比不同类型刺激信息诱发ERP信号的近似熵下降百分比，发现无关刺激在刺激反应过程中，对应的近似熵下降百分比显著大于相关刺激和靶刺激的下降百分比（p<0.001），说明近似熵的下降程度可以作为识别受试者隐藏信息的一种辅助特征参数。
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