Figure 1. Receptive field maps for varying eye positions.
The position of each colour-coded map (red: high neural activity (spikes s−1); blue: low neural activity) represents the fixation location (given by the ‘+’ sign) during receptive field (RF) mapping. Maps are shown in screen coordinates. While the gaze shifts from left to right, the RF stays stationary on the screen, i.e. this neurone encodes visual information along the horizontal axis in head-centred coordinates. In addition, response strength increases for more rightward fixation locations.