Attention ability test device, attention ability test method, and vehicle

An attention ability test device, comprising:

• a display having a display area;
• an input device for receiving an operation performed by an examinee;
• and
• a test controller,
• wherein
• the test controller generates at random at least one of a center task and a periphery task while displaying a central image in a central area of the display area, and displaying one or more peripheral images in a peripheral area of the display area, the center task being a task of changing the central image such that a first shape moves around a first circular path at a first constant speed while expanding in size at a second constant speed, the periphery task being a task of changing the peripheral image such that a second shape moves around a second circular path at a third constant speed while expanding at a fourth constant speed, measures, as a reaction time, a period of time from generation of the center task or the periphery task to execution of a predetermined operation by the examinee having recognized the generation, and evaluates a state of an attention ability of the examinee, based on the reaction time.