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| 脑损伤患者听觉P300电位特点 | |
| 引用本文： | 崔勇,刘帆,张馨元,汤鹏,刘鹏,张彪,刘技辉.脑损伤患者听觉P300电位特点[J].法医学杂志,2009,25(1):19-23. |
| 作者姓名： | 崔勇 刘帆 张馨元 汤鹏 刘鹏 张彪 刘技辉 |
| 作者单位： | 1. 中国医科大学,法医学院临床法医学教研室,辽宁,沈阳,110001;辽宁中医药大学基础医学院,辽宁沈阳,110032: 2. 中国医科大学93期口腔医学专业,辽宁,沈阳,110001 3. 中国医科大学,法医学院临床法医学教研室,辽宁,沈阳,110001 |
| 摘 要： | 目的探讨听觉P300电位对脑损伤患者认知功能障碍程度法医学评价的应用价值。方法对正常人和脑损伤患者，分别在主动（踩踏板）与被动任务状态下进行听觉P300测试。结果正常人主动任务状态P300电位中的N2、P3波波幅较被动状态高，潜伏期无明显延长，N1、P2波幅Cz点高于Pz点。脑损伤组被动任务状态下N2、P3波波幅较正常人被动状态下高．且潜伏期延长。脑损伤组主动任务状态P300电位中的N2、P3波波幅较被动状态高，且潜伏期延长。注意障碍患者P3波潜伏期改变最明显。结论任务类型主要影响N2、P3波幅。被动反应中的N2、P3潜伏期可作为评价脑损伤患者认知功能的指标。 |
| 关 键 词： | 法医学 事件相关电位 P300 脑损伤 认知 |
Auditory P300 in the Patients with Traumatic Brain Injury |
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| CUI Yong,LIU Fan,ZHANG Xin-yuan,TANG Peng,LIU Peng,ZHANG Biao,LIU Ji-hui.Auditory P300 in the Patients with Traumatic Brain Injury[J].Journal of Forensic Medicine,2009,25(1):19-23. | |
| Authors: | CUI Yong LIU Fan ZHANG Xin-yuan TANG Peng LIU Peng ZHANG Biao LIU Ji-hui |
| Institution: | CUI Yong1,2,LIU Fan3,ZHANG Xin-yuan1,TANG Peng1,LIU Peng1,ZHANG Biao1,LIU Ji-hui1 (1. Department of Clinical Forensic Medicine,School of Forensic Medicine,China Medical University,Shenyang 110001,China,2. College of Basic Medical Science,Liaoning University of Traditional Chinese Medicine,Shenyang 110032,3. Dentistry Speciality Session 93th,China) |
| Abstract: | Objective To assess the cognitive dysfunction in patients with the traumatic brain injury(TBI) by auditory P300. Methods Auditory P300 was recorded in the normal subjects and patients with TBI at the active(foot pedal) and passive task. Results In healthy persons, N2 and P3 in active task state showed higher amplitude than that in passive task state, and no significant prolongation of the latency. The ampli- tude of N1 and P2 at Cz was higher than that at Pz. In passive task state, N2 and P3 showed higher a... |
| Keywords: | forensic medicine event-related potentials P300 brain injuries cognition |
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