English: The principle of compensatory representation of self-motion in the egocentric space of visual awareness, depicted for a simplified gaze movement in cartoon fashion. For illustrative convenience, the gaze moves as a whole, without separate representation of eye movements. The spatiotopic and ego-centrically organized neural space is partitioned into three nested zones: egocenter, body map (here limited to a head representation) and distal world map. In this partitioning, global sensory motion contingent on active gaze displacement is represented as a swivelling action (curved single arrows) of the visual head within the full 360 degree implicit coordinate space. At the end of the movement a new sample of the distal visual world fills the visual aperture. The central placement of the ego-center lies closer to that of audition than to that of vision, a placement motivated by the fact that even in the more realistic case of independent eye movements the limits of the visual aperture are determined largely by the bony orbit of the eye, which (like the ear) is fixed to the head. Thus, a 45 degree rightward saccade of the eyes extends the visual field by far less than 45 degrees to the right. This makes head movements the major means for moving the visual aperture, and cephalomotor and vestibular signals central to the compensatory scheme (see footnote 8). Given central magnification in vision, which foreshortens the magnitude of peripheral positional displacement on retinotopic maps during saccades, saccades are more a means for moving the ”spotlight” of central, high-resolution vision than for moving the visual field as a whole.