Patent ID: 7142902

Claim:
A device for measuring strategy acquisition when a subject performs a predetermined assignment of work comprising: a measuring portion that measures an oxyHb amount in blood in a predetermined measuring region of a brain of a subject; a time change data producing portion that obtains the oxyHb amount in the blood measured by the above-mentioned measuring portion chronologically and that produces time change data as data showing time change of the oxyHb amount in the blood; an average data producing portion that calculates average values of the oxyHb amount, from the start point of time to the completion point of time of conducting each work, and produces average value data indicating an average value of the oxyHb amount while the subject conducts each assigned work based on the time change data produced by the time change data producing portion in case the subject conducts multiple works that can be solved using a definite law or regularity; and an output portion that displays or outputs the average value data produced by the average value data producing portion.