[Spatial shifts in the receptive fields of neurons of the superficial layers of the superior colliculus of the cat during voluntary eye movements and head tilts].

Receptive fields of 104 collicular neurons studied in alert cats have shifted their locations on the screen after saccades, induced by displacement of the point of fixation. Head tilt led to the same spatial tilt of preferred direction for directionally selective units. It is concluded that the studied part of visual system is not responsible directly for organization of constant spatial perception.