PROBLEM TO BE SOLVED: To solve the following problem: a highly accurate method is needed as a method for acquiring brain activity information from biological subjects to which a sensory stimulus is presented.SOLUTION: An information acquiring method for acquiring brain activity information from biological subjects to which a sensory stimulus is presented includes: measuring the brain activity in at least one region of the brain areas of the biological subjects including the visual cortices of the cerebral cortex, the auditory cortices of the cerebral cortex, and the vestibular cortices of the cerebral cortex, while the stimulus which changes over time is presented to the brain areas, before and after the sensory stimulus is presented to the brain areas; and then acquiring the brain activity information based on the measured data on the brain activity.
EVALUATION METHOD, EVALUATION DEVICE, PROGRAM, AND RECORDING MEDIUM