Perception is the organizing process by which we interpret our sensory input. According to this principle, a figure is perceived in relationship to its background. The perception of the object or figure in terms of colour, size, shape, intensity and interpretation etc. depends upon the figure ground relationships. Figure ground organization is probably inborn, since it is the first perceptual ability to appear after cataract patients regain sight. Even 5-month old babies respond to figure-ground patterns. In normal figure-ground perception, only one figure is seen. In reversible figures, however, figure and ground can be switched. According to Gestalt psychologists, a number of factors influence the perception of a figure. Some of them are
1. Nearness: Stimuli that are near each other tend to be grouped together.
2. Similarity: Stimuli that are similar in size, shape, colour, or form tend to be grouped together.
3. Continuation: Perception tend toward simplicity and continuity.
4. Closure: the tendency to complete a figure, so that it has a consistent overall form.
Apart from these, learning and past experience greatly influence the perception of figure.
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