Rotation and translation of vehicles: Some aspects of their dissociation.

It is a well known fact that visual information is a powerful basis for the control of self- motion. Any movement of the observer in three dimensional space generates an optical inflow, consisting of the apparent movement of elements in the observer's visual field. In this paper was shown how the combination of the rotational and translational movements of the observer, made when driving a car, can generate complex optic flow.