COI code: ELECTRICA02_066
Paper Language: English
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Authors Consider Of Chaos and nonlinear Features in EEG and ERP For Mild Alzheimer's DiseaseGhazale Safari beydokhti - Biomedical Engineering student,international university of imamreza
Elias Mazrooei Rad - Computer and Sience Department,Khavaran Institute of Higher Education
Abdollah Rajabzadeh cherry - Biomedical Engineering student,international university of imamreza
Abstract:The initial aim and motivation of this research is planning and providing a system for Diagnosis and identification of Alzheimer patients on light step from the old health individuals.Considering the specifications of EEG 1 and the way of this sickness with different specifications in brain signal، this sickness may be diagnosed within the primary step through an adequate process. First of all، the brain signal has been registered in four state of: closed eye، opened eye، booster and irritation from three Pz،Cz،Fz channels.Seeing the registered protocol، on the booster period، during 1 minute to the signal registration while the patient remembers the images and during the irritation state and considering the audible sample، the responding manner of subject to the voice of aim are investigated: then، other processes within the frame of time and frequency such as indicating statistical specifications correlation، spectral analysis and deduction of different non linear specifications such as lyapunov exponent ، correlation dimension)D2) and anthropy are done by considering the nonlinear and turbulent nature of the brain signals. D2 was significantly lower in the Alzheimer patients compared to controls. The difference between original and surrogate data was significant in both groups, implicating that non-linear dynamics play a role in the D2 value. Then، by using the Genetic Algorithm the optimum specifications were drawn out by using the three claaaifier LDA2 ,SVM 3 and Elman. According to the drawn out results، it became clear that among the three channels Pz،Cz،Fz and four states of closed eye، opened eye، booster and irritation، the exactitude Pz channel and the state of irritation are more in comparison with the channels and other states. The accuracy of channel Pz result during remembering and irritation period with the selected specifications of the Genetic Algorithm through linear selector are respectively 65/3% and 68/4% , in Support vector machine method are respectively 72/3% and 76/14% and in nervous system the exactitude is respectively 94/3% and 96/2%.
Keywords:Nonlinear feature, Chaos , Mild alzheimer’s disease, EEG , ERP
COI code: ELECTRICA02_066
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Safari beydokhti, Ghazale; Elias Mazrooei Rad & Abdollah Rajabzadeh cherry, 2015, Consider Of Chaos and nonlinear Features in EEG and ERP For Mild Alzheimer's Disease, Conference on Electrical Engineering, Communication and Sustainable Development and demand oriented research With a focus on modern achievements in science and engineering, مشهد, موسسه آموزش عالي خاوران, https://www.civilica.com/Paper-ELECTRICA02-ELECTRICA02_066.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Safari beydokhti, Ghazale; Elias Mazrooei Rad & Abdollah Rajabzadeh cherry, 2015)
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