Sunday, November 2, 2014

Perceptual Constancies: Shape Constancy

Even though the shape of objects is always constant, the change in angle when viewing an object can make it seem like the object has a different shape; however, size constancy allows humans to perceive objects as having a constant shape even if there are changes in the angle of perspective.

For example, in the first picture, the painting has a rectangular shape, while in the second, picture, the angle that the painting is viewed from causes it to have a more trapezoidal shape. Even though the painting seems the shape of a trapezoid, humans still see it as rectangle due to shape constancy.     





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