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The major purpose of this study is to explore the relationship between the mental workload and the theta wave based the approximate entropy (ApEn) analysis method. ApEn is one of the nonlinear dynamics parameters to measure the complexity of sequence and quantify statistics as long as the relatively short data points are provided. The electroencephalogram (EEG) data of 64 subjects of different gender...
This study aims to researching whether human intentions to move left and right hands can be decoded from Sample Entropy (SampEn) features in non-invasive EEG. Eleven healthy subjects participated in the experiment. We found the a waves SampEn value of imagined left hand movement is larger than imagined right hand movement in most of male electrodes, especially F3, C3 and T3, and the a waves SampEn...
Electroencephalogram (EEG) activity in Male human during pleasant and unpleasant emotions by different events was investigated. When the subjects were listening to pleasant music and noise, the EEG data comparing pleasant and unpleasant states were obtained. Related emotional theta band was studied by using Principal Component Analysis of EEG data, meanwhile extracting the first principal component,...
By studying mental arithmetic for healthy adults by statistical analysis and investigating the load of local areas, the study is better to learn how the brain works. Subjects are 22 right-handed healthy university males. Subjects were asked to do mental arithmetic twice independently. Numbers were selected during 1 to 10 randomly. Every two numbers were given respectively; the time interval of them...
This study aims to confirm the relationship between the cognitive processes and frequency of alpha rhythm. Alpha frequencies were calculated based on two events: eyes close and eyes close calculating. These results were then analyzed to find their change. The frequency of alpha rhythm becomes high from eyes close only condition to eyes close calculating. The cognitive processes lead to the increase...
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