Method for determining the relative amplitude of eye and head movements of an individual, comprising: -a target providing step during which a list of visual targets comprising at least two different visual targets is provided； -a reference positioning step； -a reference target providing step during which a reference target comprising a visual and auditory target is provided； -a reference target gazing step during which the individual gazes at the reference target； -a peripheral target providing step during which a peripheral target comprising a visual and auditory target is provided； -a peripheral target gazing step during which the individual gazes at the peripheral target； and, -a rotation measurement step during which the angle of rotation of the individual's head and the angle or rotation of the individual's eyes are measured.
