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, areas of strength and weakness, and personality traits. The apparatus for white-matter-enhancement processing of the present invention has a memory part for inputting and storing contrast images of a brain of a living body; a white-matter-enhanced image-creating part for creating white-matter-enhanced images, based on stored contrast images; a display processing part for displaying the white-matter-enhanced images thus created; and a branching analysis part 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.