This cognitive dysfunction diagnostic apparatus (1) is provided with: a display unit (10) which displays an image for diagnosis of cognitive dysfunction on a display surface (11)； an imaging unit (21) which captures images of a patient's eye； a detection unit (37) which detects the patient's viewpoints within the display surface (11) in a time-sequence manner on the basis of the images captured by the imaging unit (21)； a creation unit (38) which creates a distribution map representing a distribution of the viewpoints detected by the detection unit (37)； a storage unit (32) which stores case characteristic data (310) indicative of characteristics of a viewpoint distribution that corresponds to a typical case of cognitive dysfunction； and a diagnosis unit (39) which provides a diagnostic of the patient's cognitive dysfunction by determining whether or not the distribution map shows characteristics of the case characteristic data.
