网络成瘾患者早期面孔加工N170的研究

ZHAO Lun, GAO Wen-bin

Space Medicine & Medical Engineering(2007)

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Abstract
目的研究网络成瘾患者面孔早期加工的脑机制。方法被试者分为正常对照组18~21岁和网络成瘾组17~22岁,各10名,均为右利手。刺激包括3种卡通面孔(中性、微笑、愤怒)和3种非面孔,要求被试者进行面孔识别任务,同时记录32导脑电。结果1)对照组产生了明显的颞-枕区分布的面孔特异性成分Nd170(面孔的N170减去非面孔的N170);2)与对照组相比,网络成瘾组Nd170表现为明显的枕区分布,且幅值显著增强、潜伏期明显提前。结论网络成瘾患者可能具有与正常被试者不同的面孔早期加工机制。
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Key words
N170,internet addiction,face perception,event-related potentials (ERP)
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