| 基于复杂性测度的光诱发下alpha波脑电特性研究 |
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| 引用本文： | 郑杨,钱志余,李韪韬,丁尚文.基于复杂性测度的光诱发下alpha波脑电特性研究[J].中国医学物理学杂志,2011,28(3):2644-2647. |
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| 作者姓名： | 郑杨 钱志余 李韪韬 丁尚文 |
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| 作者单位： | 南京航空航天大学,自动化学院,生物医学工程系,江苏,南京,210016 |
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| 基金项目： | 国家自然科学基金，江苏省普通高校研究生科研创新计划资助项目 |
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| 摘 要： | 目的:利用Lempel-Ziv复杂度算法,研究光诱发下α波脑电特性。方法:记录20名正常受试者(平均年龄23.2岁)在闭眼状态下接受12 Hz闪光刺激的脑电信号,分析光刺激前后α波脑电复杂度变化。结果:发现12 Hz光刺激能够引起17名受试者α波脑电复杂度的显著增加(P<0.05);其中在额部、右中央、顶部、枕部、右中颞、左右后颞α波脑电复杂度变化较为显著,以顶部与枕部变化最为明显;光刺激后,左右半脑平均α波复杂度均出现增加,其中右脑区α波复杂度变化更为显著。结论:12 Hz频率光诱发能够引起同频率段的脑波信号的显著响应,该结论有助于研究光诱发下的脑功能特性,且对于探索外部刺激对人脑认知活动的影响具有参考价值。
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| 关 键 词： | 脑电 α波 光刺激 复杂度 |
Study on the Characteristics of EEG Alpha Wave Induced by Photic Stimulation Based on the Complexity |
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| ZHENG Yang,QIAN Zhi-yu,LI Wei-Tao,DING Shang-wen.Study on the Characteristics of EEG Alpha Wave Induced by Photic Stimulation Based on the Complexity[J].Chinese Journal of Medical Physics,2011,28(3):2644-2647. |
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| Authors: | ZHENG Yang QIAN Zhi-yu LI Wei-Tao DING Shang-wen |
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| Institution: | ZHENG Yang,QIAN Zhi-yu,LI Wei-Tao,DING Shang-wen(Department of Biomedical Engineering,College of Automation Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing Jiangsu 210016,China) |
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| Abstract: | Objective:The Lempel-Ziv complexity algorithm is used to study on the characteristics of EEG alpha wave induced by photic stimulation.Methods:EEGs of 20 healthy volunteers(23.2 years old on average) induced by 12 Hz photic stimulation with eyes closed were recorded,and the changes of α rhythm EEG complexity were analyzed before and after photic stimulation.Results:The 12 Hz photic stimulation caused the complexity of 17 volunteers α rhythm EEG a significant increase(P<0.05).The changes of α rhythm EEG c... |
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| Keywords: | electroencephalography（EEG） α rhythm photic stimulation complexity |
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