National Institute of Information and Communications Technology, Incorporated

Tsutomu Murata

Hideo Eda

Akira Takatsuki

A cognitive capacity measuring device utilizes an image display unit for displaying different kinds of images that have been degraded from an original photographic object. A subject can provide an input when he/she discerns the photographic object in the degraded image. Recognition time periods are recorded and matched with predetermined challenge level data parameters to calculate a cognitive capacity of the subject. A statistically significant number of test subjects provide recognition times relative to a specific degraded image so that a normal distribution from a frequency distribution of the number of subjects in relationship to a logarithm of the recognition times can be determined. The normal distribution along with the challenge level parameters can provide an indication of the subject's cognitive capabilities.

Cognitive capacity measurement device and cognitive capacity measurement method

A method for mapping higher brain function comprises an fMRI mapping step Sto map a brain function of the subject TP by fMRI, a head portion structural image acquisition step Sto acquire a head portion structural image IMGs by an MRI system in a state that a headgear HC having a marker is mounted on the head portion of the subject TP, a three-dimensional image combining step Sto create a three-dimensionally combined image IMGfs by combining the head portion structural image IMGs and the brain functional image IMGf obtained by the fMRI mapping step San optical probe mounting step Sto specify positions on the headgear HC where optical probes PRPRare mounted based on the three-dimensionally combined image IMGfs and to mount the optical probes PRPRat the specified positions and an NIRS measuring step Sto conduct the NIRS by a NIRS method in a state that the headgear HC loaded with the optical probes PRPRis mounted on the head portion of the subject TP.

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Koganei, Japan

Tsutomu Murata