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广泛性焦虑与强迫症患者的事件相关电位P_(300)比较研究 被引量:2

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摘要 目的比较广泛性焦虑(GAD)和强迫症(OCD)在事件相关电位P300检测中的不同特点。方法收集符合中国精神疾病分类方案第三版诊断标准的41例GAD患者和69例OCD患者以及58例正常健康体检者(NC)。使用美国仪器以及"听觉靶-非靶刺激序列"为诱发事件,完成P300检测。结果 (1)GAD组与OCD组变化表现为同一趋势,即潜伏期延迟,波幅降低。(2)GAD组、OCD组及NC组在靶潜伏期Cz脑区N2和P3,靶波幅P3及非靶波幅P2差异均有统计学意义(均<0.05)。(3)与NC比较,OCD组P300靶潜伏期N2和P3延迟(<0.01),靶波幅P3降低(<0.01)。与NC相比,GAD组也见相同结果。(4)在非靶刺激中,与NC组相比,OCD组和GAD组均下降,OCD组波幅又高于GAD组(<0.01)。结论 P300可作为GAD和OCD辅助诊断的一个脑电生理学标志,变化诸特点需进一步随访。
出处 《现代实用医学》 2011年第1期41-43,共3页 Modern Practical Medicine
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同被引文献67

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