An information processing apparatus according to the present invention includes an imaging section which emits light to a part of a biologic body at predetermined time intervals and images a vein in the biologic body so as to generate imaged data about the vein, a vein pattern extracting section which extracts vein patterns from the imaged data about the vein, a time change detecting section which detects a time change in the vein patterns, a blood flow volume calculating section which calculates a blood flow volume in the vein based on the time change in the vein patterns, and a processing section which executes a predetermined process based on the time change in the vein patterns and a time change in the blood flow volume.
