MENTAL DISORDER DETERMINATION DEVICE

A state of mental illness of a subject is easily determined.A mental illness determination device (400) includes a brain function activation information providing unit (441), a face change information acquisition unit (442), a face change information decomposition unit (443), a determination component extraction unit (444), and a mental illness determination unit (445). The brain function activation information providing unit (441) provides "emotional stimulation information" for stimulating any sense or any combination of senses among an auditory sense, an olfactory sense, a gustatory sense, a tactile sense, and a somatic sensation of a subject (300) to change emotion. Then, the determination component extraction unit (444) extracts as "determination component" a component related to the emotional stimulation information among a plurality of components 1, 2, 3, ... obtained from face change information. The mental illness determination unit (445) determines a state of mental illness of the subject (300) on the basis of the determination component.