The present invention provides an apparatus for white-matter-enhancement processing, and a method and a program for white-matter-enhancement processing that makes it possible to analyze distinguishing characteristics of the brain of a living body, such as degree of growth and development, left/right brain dominance, identification of areas of strength and weakness, and personality traits of the brain of the living body. The apparatus for white-matter-enhancement processing A of the present invention has a memory part 5 for inputting and storing contrast images of a brain of a living body, obtained by means of MRI apparatus B； a white-matter-enhanced image-creating part 6 for creating white-matter-enhanced images, based on contrast images stored in recording part 5, in which the white matter is enhanced by adjusting the images in such a way that the white matter stands out and the cortex does not stand out； a display processing part 7 for displaying on output part 2 the white-matter-enhanced images created by means of white-matter-enhanced image-creating part 6； and a branching analysis part 8 for analyzing distinguishing characteristics of the brain of a living body, based on any one of or a combination of the characteristics of branches in the white-matter-enhanced images that are created: their number, thickness, length, location, intensity, shape and/or size (see Figure 1 ).
