PROBLEM TO BE SOLVED: To provide a device capable of further easily acquiring a cognitive function.SOLUTION: An instrument includes: a plurality of operation objects 111 operable with their held in fingers and a board 112 on which the operation objects can be disposed, where order for operating the operation objects is displayed on at least any of the operation objects and the board. Further, a cognitive function evaluation system includes: a measurement step of measuring a time required for operating the plurality of operation objects operable with their held in fingers, according to the displayed order and a determination step of determining whether or not the time acquired by the measurement is within a prescribed threshold or more.
