A method for white-matter-enhancement processing comprising the steps of: inputting a contrast image of a brain of a living body obtained by means of an MRI apparatus; creating a white-matter-enhanced image, based on said contrast image that was input, in which the white matter is enhanced by adjusting the window width and window level of said contrast image in such a way that the white matter stands out and the cortex does not stand out, characterised in that the method further comprises the following steps: addresses for demarcating regions of the brain, which are assigned demarcating sites where specified functions and roles are performed in said brain of the living body are displayed together with said white-matter-enhanced image; displaying said white-matter-enhanced image that was created; and analyzing distinguishing characteristics of said brain of a living body by the degree of growth of the branches in brain addresses based on at least the intensity of the selected demarcating regions and optionally on the number, thickness, length, location, shape or size, or a combination of these characteristics of the branches in said white-matter-enhanced image that was created, wherein the characteristics of said brain of a living body include left/right brain dominance, and wherein the left/right brain dominance is analyzed by calculating a Laterality Index by the equation: R − L / R + L = LI, wherein R is the number of voxels in the branches in right brain addresses, and L is the number of voxels in the branches in the left brain addresses, and wherein if LI is negative, left brain dominance is strong, and if LI is positive, right brain dominance is strong. inputting a contrast image of a brain of a living body obtained by means of an MRI apparatus; creating a white-matter-enhanced image, based on said contrast image that was input, in which the white matter is enhanced by adjusting the window width and window level of said contrast image in such a way that the white matter stands out and the cortex does not stand out, characterised in that the method further comprises the following steps: addresses for demarcating regions of the brain, which are assigned demarcating sites where specified functions and roles are performed in said brain of the living body are displayed together with said white-matter-enhanced image; displaying said white-matter-enhanced image that was created; and analyzing distinguishing characteristics of said brain of a living body by the degree of growth of the branches in brain addresses based on at least the intensity of the selected demarcating regions and optionally on the number, thickness, length, location, shape or size, or a combination of these characteristics of the branches in said white-matter-enhanced image that was created, addresses for demarcating regions of the brain, which are assigned demarcating sites where specified functions and roles are performed in said brain of the living body are displayed together with said white-matter-enhanced image; displaying said white-matter-enhanced image that was created; and analyzing distinguishing characteristics of said brain of a living body by the degree of growth of the branches in brain addresses based on at least the intensity of the selected demarcating regions and optionally on the number, thickness, length, location, shape or size, or a combination of these characteristics of the branches in said white-matter-enhanced image that was created, wherein the characteristics of said brain of a living body include left/right brain dominance, and wherein the left/right brain dominance is analyzed by calculating a Laterality Index by the equation: R − L / R + L = LI, wherein R is the number of voxels in the branches in right brain addresses, and L is the number of voxels in the branches in the left brain addresses, and wherein if LI is negative, left brain dominance is strong, and if LI is positive, right brain dominance is strong. wherein R is the number of voxels in the branches in right brain addresses, and L is the number of voxels in the branches in the left brain addresses, and wherein if LI is negative, left brain dominance is strong, and if LI is positive, right brain dominance is strong.