The present invention provides a technique for judging the reflexivity of an eyeball movement. The invention includes a feature value extraction unit that extracts a feature value (a first feature value) of a saccade appearing in a pupil movement performed by a subject during a task involving moving an eye so as to follow a visual cue or an auditory cue and a feature value (a second feature value) of a saccade appearing in a pupil movement performed by the subject during a task involving moving the eye in an opposite direction to the visual cue or the auditory cue, and a judgement unit that generates a judgement result indicating whether or not an eyeball movement performed by the subject has occurred reflexively on the basis of a degree of difference between the first feature value and the second feature value, wherein the judgement unit generates a judgement result indicating that the eyeball movement performed by the subject has occurred reflexively when the degree of difference is large, and generates a judgement result indicating that the eyeball movement performed by the subject cannot be said to have occurred reflexively in other cases.
REFLECTIVITY JUDGEMENT APPARATUS, REFLECTIVITY JUDGEMENT METHOD, AND PROGRAM