PROBLEM TO BE SOLVED: To address requirements for a highly accurate method as a method for acquiring brain activity information from a living body subjected to sensory stimulation.SOLUTION: An information acquisition method for acquiring brain activity information from a living body subjected to sensory stimulation includes steps of: (1) applying the sensory stimulation to at least any one area of a visual area, an auditory area, and an equilibratory sense area in the cerebral cortex of the living body; (2), when applying the sensory stimulation thereto, measuring brain activities in a plurality of non-identical areas in the areas; and (3) evaluating stress that the sensory stimulation applies to the subject on the basis of data of the brain activities of the plurality of areas.
EVALUATION METHOD, EVALUATION DEVICE, PROGRAM, AND RECORDING MEDIUM