| The brain,as the core of the human central nervous system,plays a leading role in the whole human organ.The brain is also the most complex organ of human cognition.Today's society has never stopped studying the brain.One of the important characteristics of the brain is the generation of brain waves.The various activities of human brain neurons lead to the generation of EEG,which comprehensively expresses the activity of neurons and contains very rich information.In the field of brain research,the most important research tool that people can not ignore is the EEG signal,with the EEG signal analysis and understanding of the deepening of the relevant important research results are emerging.EEG contains a wealth of emotional information,known as the focus of research workers in recent years,as the most intuitive means of brain brain waves,in the study of the brain brain waves need to be collected and analyzed,in order to be able to get demand Of the brain wave type,the need to collect the brain waves to carry out artifact research,in which the eye signal is one of the more difficult to identify the signal.The electrocardoence(EOG)is a very weak bioelectrical signal that is usually caused by a potential difference caused by a different potential between the cornea of the eye and the retina.We captured the changes in the eye signal,because the eye has a variety of sports state,different states of the eye movement will produce different states of the eye signal waveform.The main research contents of this subject are: to collect EEG data of ordinary people under open eyes and vertical eye movement,and to study the principal component energy spectrum analysis of human brain parts according to the collected data.Vertical eye movement is the regular behavior of ordinary people,but the vertical eye movement can produce a strong signal,this signal even stronger than the EEG signal.Therefore,the vertical eye movement on the EEG signal to produce a strong interference.The purpose of this study is to analyze the data of brain waves in the state of vertical eye movement,and to isolate the artifact information of the eye electrical signals in the EEG under vertical motion.The data used are collected by completely independent EEG experiments The real data.Data acquisition object for Dalian Jiaotong University undergraduates,using MATLAB software,in the EAST system under different conditions of EEG data,to find out the law,summed up the conclusion,to complete the vertical eye movement EEG main component energy spectrum analysis study The The research method used in this research is the principal component energy spectrum analysis method.After this experimental study,the data collection,through the vertical movement of the eye under the EEG data analysis of the eye electrical signal will be separated,and then can be classified as artifacts,for the future EEG debarking Provide data support,in order to better study of EEG artifacts.The subject,randomly selected 20 students for EEG signal data collection.The PSD value of the brain electrode Fp1 and the vertical eye movement state is larger than the PSD value of the open eye state.The PSD value of the open state of the brain electrode Fp2 is greater than the PSD value in the vertical eye movement state.Based on the concluded conclusions,it can be deduced that the comparison of the given two states can reverse determine the specific information of the eye electrical signals under open eyes and vertical eye movements. |
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