An involuntary eye movement where the eyes rotate in the opposite direction to a sudden head rotation, through an equal angle, before slowly returning to the original position. This reflex is mediated by the vestibulo-ocular reflex pathways and is normally suppressed during voluntary gaze. However, in cases of supranuclear lesions affecting voluntary eye movement control, the oculocephalic reflex may be exaggerated or persist. Also known as the oculocephalic reflex.