PSY 368 Lecture Notes - Lecture 10: Illusory Contours, Wilhelm Wundt, Psy
11 Apr 2019
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The stimulus on the photoreceptors is ambiguous. Objects are often hidden or blurred in naturalistic environments. An image on the retina can result from an infinite number of objects. Occlusions remove parts and features from objects, making feature-matching, yet we can still often recognize occluded objects. Blurring also reduces the match between features and an object"s representation in memory, but we can still recognize blurred patterns. The ability to recognize an object regardless of the viewpoint. Some changes in lightness and color are due to object properties; others are due to changes in illumination (shadows) Perceptions are created by combining elements called sensations . Many sensations add up to create our perception of a face. The perception of a cube results from contours connecting the vertices. But these contours are illusory; covering the vertices make the contours disappear. The failure of the structuralists to answer these questions prompted the rise of gestalt.
