Class+5+-+Perception

Contrasts the opponent process theory we sense color

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Unformatted text preview: onochromaTsm, protonapia, deuteranopia, and tritanopia A Problem With This: The A]erimage Effect Another Theory of Color Vision Limitations of the trichromatic theory: •  It can’t explain afterimages •  It struggles to explain our ability to perceive consistency and adjust for light and dark contrasts The opponent process theory: •  We sense color not in terms of separate categories but rather in a system of paired opposites: •  red vs. green •  blue vs. yellow •  black vs. white “ON” red green “OFF” green red blue yellow black white yellow blue white black What Cells Have Been Linked to the Opponent Process Theory? Dealing With the Other Issue? •  Color Constancy –  When determining the color of objects, our minds go beyond using just the frequency of the electromagneTc waves –  The brightness of surrounding objects influences our percepTon of the color and brightness of an object Adding to the Formula The Retinex Theory: •  Our cerebral cortex also plays a role in how we interpret color, it allows us to see color constancy and adjust for ambient light More on How Our Brain Works with Visual InformaTon •  Perceptual Psychology – a field of psychology that aVempts to understand how we perceive the world around us •  Gestalt Psychology...
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This note was uploaded on 05/15/2013 for the course CS 162 taught by Professor Kubiatowicz during the Spring '02 term at Berkeley.

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