FUJII, Eijiro

We investigated the electroencephalogram inspecting the color clothes of yellow, green, white, blue, black, red, purple, and gray covering most range of view to analyze the sight-psychological effects of a plant. The quantity of alpha rythm is proportional to the quantities of the beta and the theta rhythms at most colors. The correlation coefficients between the alpha and the beta rhythms and between the alpha and the theta rhythms are high at yellow in both sexes, and, on the contrary, low at gray between the alphe and the theta rhythms. Therefore, we could say that the individual differences of visual impression are less at yellow and more at gray than at other colors. Comparing the lean of regression line between the beta rhythm to the alpha and the theta to the alpha, the lean of the beta to the alpha is larger than that of the theta to the alpha at most colors. It means that alpha rhythm largely increases with the increment of theta, but not so much with the beta. Comparing the lean of a regression line at each color between the male and the female, the lean of the beta to alpha is larger in the female than in the male at green, blue, and white. And, the lean of the theta to the alpha is larger in the male than in the female at yellow, white, and black. We cannot discuss further about the meanings of differences in the theta rythm at present because of the luck of the research. But, the situation of the male inspecting green or blue is considered to be less strained than the female depending on the general findings about the alpha and the beta rhythms.