Application of EEG non-linear analysis in mental arithmetic and orientation / 中国康复理论与实践
Chinese Journal of Rehabilitation Theory and Practice
;
(12): 978-980, 2005.
Article
in Chinese
| WPRIM
| ID: wpr-979852
ABSTRACT
@#ObjectiveTo investigate the changes of non-linear dynamics characteristic of electroencephalogram (EEG) under three states (eyes closed, mental arithmetic with eyes closed and orientation test with eyes closed), and the application of non-linear dynamic analysis for cognitive function research.MethodsEEG was recorded in 30 healthy young volunteers at three stages. The correlation dimension (D2) and approximate entropy (ApEn) were calculated for all subjects.ResultsD2 and ApEn increased significantly during mental tasks as compared to the rest state with eyes closed (P<0.01). In different mental tasks, the complexity of mental functions and the regions involved in the cognitive task were different.ConclusionNon-linear analysis methods are appropriate for the study of cognitive functions and can help to understand the working mechanism of brain during mental activities.
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Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Rehabilitation Theory and Practice
Year:
2005
Type:
Article
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