Q.Explain how figure-ground segregation is the most primitive form of perceptual organisation, using an example.

Figure-ground segregation is described by Gestalt psychologists as the single most primitive, most basic form that perceptual organisation takes -- it is, in a sense, the very first organising step our perceptual system performs on any visual scene, occurring before any of the more specific grouping principles (such as proximity or similarity) come into play. When we look at any visual surface, certain parts of what we see spontaneously stand out as clearly defined, separate entities, which are termed the 'figure,' while the remaining parts recede into a comparatively formless backdrop, termed the 'ground.' Everyday examples are easy to find: printed words stand out as figure against the relatively formless page, which becomes ground; a painting stands out as figure against the wall it hangs on, which becomes ground; birds in flight stand out as figure against the sky, which becomes ground. Psychologists distinguish figure from ground using five characteristic differences. The figure has a definite, well-defined form, while the ground is comparatively formless. The figure appears more organised than the ground surrounding it. The figure has a clear contour or outline, while the ground is essentially contourless. The figure appears to stand out in front, while the ground appears to recede and stay behind the figure. And finally, the figure appears clearer, more limited in extent, and relatively nearer to the observer, while the ground appears comparatively unclear, unlimited in extent, and farther away. What makes figure-ground segregation especially interesting is that it is n …