Abstract: Included are: an averaging processing unit configured to acquire video data of a facial image captured of a face of a target person and average all pixels in a specific region of the acquired video data, at regular time intervals, in terms of a difference component between color components of primary colors in the specific region; a fluctuation acquisition unit configured to obtain a fluctuation in each of the color components of the primary colors averaged by the averaging processing unit; and a detection unit configured to detect a blood flow or an activity based on the blood flow on the basis of an amount of fluctuation obtained by the fluctuation acquisition unit. This makes it possible to easily, in a non-contact manner, highly accurately detect the blood flow and detect an activity such as an autonomic nervous activity without preparing a special device.

Abstract: A psychological evaluation device that estimates interest of a subject in a content used integrally with a terminal held by the subject. Acceleration data obtained by an acceleration sensor built in the terminal is acquired, and a frequency analysis is performed on the acquired acceleration data to obtain acceleration in the gravity direction of the terminal. By obtaining the acceleration in the gravity direction of the terminal, it is possible to, for example, estimate the subject's interest in the content based on the integral value of each frequency component of the acceleration in the gravity direction obtained by performing the frequency analysis.

Abstract: A psychological evaluation device that estimates interest of a subject in a content used integrally with a terminal held by the subject. Acceleration data obtained by an acceleration sensor built in the terminal is acquired, and a frequency analysis is performed on the acquired acceleration data to obtain acceleration in the gravity direction of the terminal. By obtaining the acceleration in the gravity direction of the terminal, it is possible to, for example, estimate the subject's interest in the content based on the integral value of each frequency component of the acceleration in the gravity direction obtained by performing the frequency analysis.