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认知诱发电位动态提取的研究进展 被引量：1

Progress in dynamic extraction of cognitive evoked potential
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摘要 认知诱发电位是评价脑认知功能的重要指标。目前临床上应用的平均认知诱发电位由于平均而丧失了大量的动态信息;尤其是认知诱发电位潜伏期(相位)变化大,平均方法将使其波形和波幅严重失真。因此认知诱发电位的单次(少次)动态提取是近年来诱发电位提取技术研究的热点与难点。动态提取认知诱发电位的关键之一在于如何使提取方法适于每个单次诱发电位相位变化大的问题。以三类典型的动态认知诱发电位单次提取方法为例,介绍了近年来在该领域中的研究动向。这三种方法是:B样条小波变换去噪声法、基于三阶相关的滤波法和小波神经网络法。 Cognitive evoked potential(CEP)is an important description of brain cognitive function. The average CEP used in clinical presently lose dynamic information. As the latency of CEP varies at a large area there is a distort of shape and amplitude due to averaging. Recently it has been widely discussed extract dynamic CEP with varied latency. In this paper the outline of extracting techniques of CEP is introduced denoising by b splines wavelets third order correlations and wavelet networks.
作者 张志利 田心
机构地区 天津医科大学生物医学工程系
出处 《国外医学（生物医学工程分册）》 2005年第2期85-88,共4页 Foreign Medical Sciences(Biomedical Engineering Fascicle)
基金 国家自然科学基金资助项目(60174041)
关键词 认知诱发电位 动态提取 B样条小波变换 三阶自相关 小波神经网络 cognitive evoked potential(CEP) dynamic extraction B-splines wavelets third-order correlation wavelet networks
分类号 R318.04 [医药卫生—生物医学工程]
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参考文献16

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二级参考文献17

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国外医学（生物医学工程分册）
2005年 第2期

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