Study On Factor Analysis Of EEG Data

Study significance: the human brain is a multi-function, the EEG data includes a variety of different functions arising from the composition, in order to research different functions respectively,we need to separate different functions in the data. Factor analysis is based on the signal generated by independent factors to separate, so the EEG data on a variety of independent components of the separation is effective.Although there are other motheds:independent component analysis,principal component separation and so on,for factor analysis is aimed at the separation of signal generated from different factors the EEG data analysis method is more suitable than others.Objective:In this paper, in the context of access to different State of the EEG data factor analysis, in order to the correct understanding of the impact of different State on the brain and the important apartment of the brain that generated different State by the different responses to provide the basic trial basis and theoretical basis.Methods: According factor number to separate EEG Data, finding out the most close Brain electrodes with the first public factor, the different percentage of all kinds of Brain electrodes in histogram, at last getting the percentage in the left and the right brain hemisphere.Results: Under the three situations of music tests,language tests and mental calculation tests , the left brain cortex is related to mental calculation,chinese and pleased music.At the same time, the right brain cortex is related to relax,japanese and unpleased music.Conclusions: The three test results showed that the left brain cortex in mental calculation, listening to the and listening to the favorite music plays a major role, while the right brain cortex plays a major role in the eyes closed relaxation before and after the experiment, listening to the Japanese and listening to the dialike music. Therefore, the left brain cortex is related to the matters people interested in, just as the result in the experiment of people without music educational background and the basis of Japanese that listening to and favorite music both related to the left brain.While right brain cortex and the people are not interested in things, like music for free education background and not based on the Japanese pilot who, listening to Japanese, not quite like the music and right brain are related. Left brain cortex and state related to mental arithmetic with eyes closed.Left brain cortex is related to eyes closed mental arithmetic,Right brain cortex and state related to relax with eyes closed.