Electroencephalogram Feature Extraction for Vascular Dementia Patients Based on Multichannel Linear Descriptors

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Electroencephalogram Feature Extraction for Vascular Dementia Patients Based on Multichannel Linear Descriptors

更新时间：2025-07-09

- Electroencephalogram Feature Extraction for Vascular Dementia Patients Based on Multichannel Linear Descriptors
- Vol. 45, Issue 4, Pages: 121-125(2011)
- 作者机构：
  
  西安交通大学生物医学信息工程教育部重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： R318.4
- Online First：10 April 2011，
  
  Published：2011
- 稿件说明：
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Electroencephalogram Feature Extraction for Vascular Dementia Patients Based on Multichannel Linear Descriptors[J]. 2011, 45(4): 121-125.
DOI：

Electroencephalogram Feature Extraction for Vascular Dementia Patients Based on Multichannel Linear Descriptors[J]. 2011, 45(4): 121-125. DOI：

摘要

为提取能有效区分血管性痴呆(VaD)患者与正常老年人的神经电生理特征标识

采用多通道线性描述符对两组受试者在执行oddball视觉探测任务过程中的脑电(EEG)信号进行特征提取研究.通过对任务状态和平静状态下多通道EEG的3个多通道线性描述符分析表明

在执行探测任务过程中

VaD患者的场强变化率Φ和空间复杂度Ω明显高于正常老年人

而在平静状态下却无显著差异

两组受试人群的有效场强均没有显著差异.分别对比不同受试人群在任务状态和平静状态下的3个描述符

结果表明

两组受试者在任务状态下的有效场强Σ比平静状态明显增高

Φ和Ω明显降低

而且VaD患者3个描述符任务状态相对于平静状态的变化率要明显低于正常老年人.因此

多通道线性描述符可以有效地反映人脑认知功能的衰退

为VaD患者的脑电特征提取提供了一种新的方法.

Abstract

To extract the electroencephalogram(EEG)features for diagnosis of vascular dementia(VaD)

the multichannel linear descriptors are applied to analyze EEG signal recorded during an oddball visual detection task. The VaD group shows significantly higher Φ and Ω values compared with the elderly control during the task condition

and there is no obvious difference between VaD group and control in the resting state. Both the VaD group and the control show a higher Σ value and lower Φ and Ω values in task compared with that at rest. And the varying rates of the three descriptors in the resting state compared to task in VaD group are significantly larger than that in control. The multichannel linear descriptors could reflect the cognition function decline of VaD group

and thus provide a novel method for the EEG feature extraction of VaD patients.

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references

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