A cognitive function evaluation device (10) is provided with: an acquisition part (11) which acquires body motion data indicating body motion during walking of a person (90) to be evaluated; a calculation unit (12a) which calculates body displacement of the person (90) to be evaluated during walking on the basis of the acquired body motion data; and an evaluation unit (12b) which evaluates the cognitive function of the person (90) to be evaluated on the basis of frequency peaks that represent walking cycles of the person (90) to be evaluated and that are obtained by performing frequency analysis on the calculated displacement, and which then outputs an evaluation result.
COGNITIVE FUNCTION EVALUATION DEVICE, COGNITIVE FUNCTION EVALUATION SYSTEM, COGNITIVE FUNCTION EVALUATION METHOD, AND PROGRAM