Abstract: A blood flow measurement device easily measures the blood flow of a user, and includes a first body portion, a second body portion, and a hinge. The first body portion includes a first casing having a first bottom face, a light source that emits near-infrared radiation from the first bottom face to the outside of the first casing, and a first light reception unit that receives the near-infrared radiation from the first bottom face side on the outside of the first casing. The second body portion includes a second casing having a second bottom face, and a second light reception unit that receives the near-infrared radiation from the second bottom face side on the outside of the second casing. The hinge joins the first body portion to the second body portion so as to make an angle formed by the first bottom face and the second bottom face variable.

Abstract: The present invention provides a stimulus presentation system which determines a mental state and changes presentation contents of a problem based on the determined mental state. The system determines the mental state by measuring gaze and cerebral function of a user, and changes presentation contents of a problem based on the determined mental state.

Abstract: The present invention provides a stimulus presentation system which determines a mental state and changes presentation contents of a problem based on the determined mental state. The system determines the mental state by measuring gaze and cerebral function of a user, and changes presentation contents of a problem based on the determined mental state.

Abstract: A living body information signal processing system (100) combining organically a living body optical measurement apparatus and a brain wave measurement apparatus, the living body optical measurement apparatus (300) in which inspection light of from visible to near infrared is irradiated on a head portion of a subject (140) and the penetration light is received and which measures an optical characteristic variation induced by a brain activity inside the head portion as a living body optical signal and the brain wave measurement apparatus (400) which measures an electrical characteristic variation induced by a brain activity inside the head portion of the subject as a brain wave signal, is provided with a probe device (50) used for both apparatus; and a living body information signal processing and displaying device (200) which displays the living body optical signal corresponding to respective measurement positions from the living body optical measurement apparatus and the brain wave signal corresponding to re

Abstract: A living body measurement system including a cerebral blood volume measurement unit for measuring a regional cerebral blood volume of a subject, an arterial pressure/heart rate measurement unit for measuring an arterial pressure and/or a heart rate of the subject, an analysis unit for analyzing signals measured by the cerebral blood volume measurement unit and the arterial pressure/heart rate measurement unit, an extraction unit for extracting information concerning a regional cerebral vascular state of the subject on the basis of an output of the analysis unit, and a display unit for displaying a measurement result measured by the cerebral blood volume measurement unit and/or the arterial pressure/heart rate measurement unit, an analysis result analyzed by the analysis unit, or an extraction result extracted by the extraction unit.