PSYCH 1 Lecture Notes - Lecture 27: East Los Angeles College, Color Constancy, Subjective Constancy

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24 Dec 2020
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Familiar size is used as a cue to depth. Size constancy: mechanism that maintains the perception of a particular object as being of one size, in spite of the fact the size of the image on the retina varies. Others include, colour constancy, shape/form constancy (ability to recognize object is same even if it"s a different size) and brightness constancy (brain will perceive a surface as equally light regardless of illumination) Easy for humans; robot must be taught image on retina constantly changes. Perceptual constancies allow us to see the world as somewhat stable. Unconscious inferences: perception most compatible with all the evidence. Because we see two objects as the same size (even though retinal images are different sizes), vision is more than elemental sensations (depends on other factors) Brain extracts key features from visual sensation and then. Ecological (functionalist) account reconstructs an image world. Focused on structures and their texture; detection of movement and change.

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