치매환자와 정상인의 뇌파 비교에 대한 연구

Abstract

The aim of this study is to observe a human's brain wave in dimentia and to comparaed with normal person's brain wave. An electroencephalogram (EEG) is records of the electrical activity of human brain. The EEG contains two different type signals that one is autonomous signal and the other is event-related signal. We analyzed autonomous signal on the normal for comparison to the abnormal like as the dementia or the epilepsy. We recorded EEGs with 16 electrodes and analyzed them to classify the brain waves on frequency domain. We also analyzed the brain signal according to length of data to check the stationary of the autonomous signal. At the result, we found the averages of the brain signal according to data length are almost same and the standard deviations are smaller according to data length.

Key words : EEG, Autonomous Brainwave, Frequency Response, Standard Deviation, Window Function