Perception Lecture on Color

Vocabulary flashcards from the lecture on color perception theories.

Trichromacy Theory

A theory proposing that human color perception is based on three types of receptors in the eye that are sensitive to Red, Green, and Blue wavelengths.

Metamerism

The phenomenon where different colors can appear the same under certain lighting conditions due to the way color receptors in the eye perceive colors.

Opponent Theory of Color

A color theory that suggests color perception is controlled by the activity of opponent pairs of colors (Red-Green, Blue-Yellow, Black-White).

Phenomenological approach

An approach that focuses on how things appear to our perceptions without relating to external physical properties such as light or wavelength.

Afterimages

Visual illusions where an image continues to appear after it is removed, typically seen in complementary colors due to opponent processing.

Opponent processing

A theory that explains color vision based on opposing color pairs and the physiological mechanisms involved in the perception of color.

Color blindness

A condition where one or more of the color receptor cones in the eye are not functioning properly, leading to the inability to perceive certain colors.

Hering's six primary colors

According to Hering's theory, the six primary colors are red, green, yellow, blue, black, and white.

Ewald Hering

A psychologist known for proposing the Opponent Theory of Color in the late 19th century.

Young-Helmholtz theory

A theory of color vision that emphasizes the trichromatic nature of color perception, developed by Thomas Young and Hermann von Helmholtz.