搜索结果: 1-15 共查到“EEG”相关记录29条 . 查询时间(0.045 秒)
广州生物岛实验室杨小枫教授团队应用大鼠急性局灶性癫痫模型，采用头皮脑电图-功能磁共振成像（EEG-fMRI）同步记录技术，发现癫痫发作引起的血氧水平依赖（BOLD）信号和癫痫发作起始区存在空间高度一致性。此外，随着癫痫发作不断扩散， BOLD信号与癫痫发作传播网络也存在空间一致性。该研究结果表明，EEG-fMRI同步记录技术，有望成为一种无创定位癫痫发作起始区、绘制致痫网络的重要工具。目前该原创性...
合成语音新闻的传播效果评测——关于语速影响的EEG证据
受众性别 喜爱度 信任度LC4MP EEG
2022/3/14
本研究采用脑电（EEG）技术探究不同语速（1.0倍速、1.5倍速）对不同性别受众使用合成语音新闻产品时的心理感知和脑电的影响。结果显示，女性受众对合成语音新闻的喜爱度比男性受众更高。当合成语音新闻为1.5倍速时，男性受众的信任度高于女性；而在.0倍速时，男性受众的信任度低于女性。此外，EEG结果显示，女性受众在听合成语音新闻的时候比男性受众的beta波段功率谱密度（powerspectralden...
Neural Markers of Performance States in an Olympic Athlete:An EEG Case Study in Air-Pistol Shooting
MAP model EEG ERD/ERS shooting elite performance
2016/7/7
This study focused on identifying the neural markers underlying optimal and suboptimal performance experiences of an elite air-pistol shooter, based on the tenets of the multi-action plan (MAP) model....
Changes in EEG During Graded Exercise on a Recumbent Cycle Ergometer
Exercise EEG brain activity
2015/4/17
Previous studies have shown changes in brain activity as a result of exercise; however, few studies have examined changes during exercise. The purpose of this study was to examine brain activity durin...
对比低频振幅(ALFF)分析技术与脑电联合功能磁共振成像(EEG-fMRI)技术对局灶性癫痫活动检测的能力,评估ALFF分析技术在局灶性癫痫活动定位中的应用价值。方法 纳入24例有明确病理灶存在的局灶性癫痫患者,分别利用GE 1.5T MRI仪(17例)及Siemens 3.0T MRI仪(7例)行同步EEG-fMRI数据采集。以广义线性模型(GLM)方法对间期痫样发放(IEDs)相关fMRI活动...
Multivariate Temporal Dictionary Learning for EEG
Dictionary learning orthogonal matching pursuit multivariate shift-invariance EEG evoked potentials P300
2013/4/28
This article addresses the issue of representing electroencephalographic (EEG) signals in an efficient way. While classical approaches use a fixed Gabor dictionary to analyze EEG signals, this article...
Effects of Monotonous Auditory Stimulation on the Human EEG
Human EEG Monotonous Auditory Stimulation Music Frequency Bands Cortical Micropotentials
2013/1/30
Monotony is the result of continuous predictive or repetitive stimulations and can be considered a functional state of the central nervous system, a state characterized by lowered cerebral activity. T...
Accuracy of Combined EEG Parameters in Prediction the Depth of Anesthesia
Electroencephalography Depth Anesthesia
2015/9/28
Background: The importance of proper qualitative evaluation of EEG parameters during surgery has been recognized since many years. Although none of the characteristics based on the frequency, entropy,...
Resting EEG Activity and Ovarian Hormones as Predictors of Depressive Symptoms in Postmenopausal Women without a Diagnosis of Major Depression
EEG Estrogen Progesterone Depression Postmenopause
2013/2/20
The aim of this study was to examine the effects of depressive symptoms on resting EEG and their corre- lation with endogenous hormone levels in postmenopausal women without a diagnosis of major depre...
在高阶累积量和独立分量分析的基础上，提出一种基于CuBICA算法的脑电信号伪迹去除方法。针对脑电信号中常含有的眼电、心电等伪迹问题，利用小波包方法对原始脑电信号去噪，并进行中心化和白化处理，运用CuBICA算法对消噪后的脑电信号进行盲源分 离。分析分离后各信号间相关性，结果表明，CuBICA算法能成功分离脑电、眼电与心电信号，有效去除纯脑电信号中的各种伪迹。
The Research of Knowledge Workers’Competencies Based on EEG Experiment of Mental Operations
Mental Therbligs EEG Knowledge Workers Competencies
2013/2/23
The paper analyzes the limitation of the method to study the competencies. The differences between competencies of knowledge workers exist in the “therbligs” used in information process. Based on 191 ...
结合PCA和JADE的EEG眼电伪迹去除研究
主分量分析 眼电伪迹 特征矩阵联合相似对角化
2009/10/10
眼电伪迹干扰是脑电信号中的常见干扰，严重影响到有用脑电信号的提取和分析。提出一种基于主分量分析（PCA）和特征矩阵联合相似对角化（JADE）算法相结合的眼电伪迹去除方法，并探讨了主分量分析对伪迹去除的影响。实验结果表明了该算法的有效性及稳健性，并且其时间开销小。此外该算法还可以有效去除其他脑电伪迹及干扰成分。
Discrimination between Ictal and Seizure-Free EEG Signals Using Empirical Mode Decomposition
Ictal Seizure-Free EEG Signals Empirical Mode Decomposition
2009/9/4
A new method for analysis of electroencephalogram (EEG) signals using empirical mode decomposition (EMD) and Fourier-Bessel (FB) expansion has been presented in this paper. The EMD decomposes an EEG s...
A Preliminary Study on Early Diagnosis for Dementia Using EEG Topography during Sternberg Task
working memory sternberg task EEG topography theta band
2009/8/24
Our goal is to establish an early diagnostic method for dementia by electroencephalography (EEG) usinga working memory task (Sternberg task). We studied four dementia patients and eighteen healthy sub...