![]() ![]() The concept of figure-ground relationship explains why this image can be perceived either as a vase or as a pair of faces.Īnother Gestalt principle for organizing sensory stimuli into meaningful perceptions is proximity. If we think about Gestalt figure-ground principles, neither black or white object(s) are clearly the figure– they are both in a similar position, meaningful, and about the same size (Peterson & Gibson, 1994 Vecera & O’Reilly, 1998). So, one minute, you perceive the vases as the figure, and the next, you perceive the faces. What do you see in Figure 5.14 ? It is likely that your perception will switch between seeing faces or a vase. In general, the figure is more meaningful (i.e., we can recognize it), and tends to be smaller and lower down in the scene than the ground. Figure refers to central object(s) in the scene, while the ground refers to the background. For example, if we look at a picture (or a scene in the real world) we make assumptions about figure-ground relationships. Gestalt psychologists often used optical illusions to demonstrate the principles. As a result, Gestalt psychology has been extremely influential in the area of sensation and perception (Rock & Palmer, 1990). Gestalt psychologists discovered that visual perception depends on a number of predictable principles that the brain uses to organize sensory information. In other words, the brain creates a perception (such as motion) that is more than simply the sum of available sensory inputs (lots of static images). The word gestalt is used to mean the “whole structure”, but its use reflects the idea that the whole perception is different from the sum of its parts. This discovery led to a new movement within the field of psychology known as Gestalt psychology. We are not aware of each individual picture – we perceive something new-apparent motion. ![]() Wertheimer (along with Kohler and Koffka) used this example to demonstrate that perception involved more than combining simple sensations. ![]() Then when they are presented in quick succession, it looks like the objects and people in the pictures are moving. This is similar to how a Disney cartoon is made -photos are taken of sets of drawings, each one with a very slight difference. In the early part of the 20th century, inspired by a children’s toy, Max Wertheimer a German psychologist published a paper demonstrating that individuals perceived motion when watching rapidly presented still images. ![]()
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