Figure 1.

Illustration of a change in fixation position within a natural scene using a saccadic eye movement (indicated by the purple arrow). The saccade target (the plate of green vegetables) is visible in extrafoveal vision prior to fixating that item for further scrutiny and to guide further action such as a grasping movement. The images are blurred except from the central area to imitate in a simplified way the difference in acuity between the fovea and extrafoveal vision.