Color Vision Depends on Special Channels from the Retinal Cones through Cortical Area V4 Flashcards
Wavelength
The length between two peaks in a repeated stimulus such as a wave, light, or sound.
Figure 7.22
The Wavelengths of Light
Figure 7.23
Colored Objects Reflect Different Wavelengths of Light
Figure 7.24
Color Perception
Brightness
One of three basic dimensions of light perception, varying from dark to light.
Hue
One of three basic dimensions of light perception, varying around the color circle through blue, yellow, orange, and red.
Saturation
One of three basic dimensions of light perception, varying from rich to pale.
Trichromatic Hypothesis
A hypothesis of color perception stating that there are three different types of cones, each excited by a different region of the spectrum and each having a seperate pathway to the brain.
Opponent-Process Hypothesis
A hypothesis of color perception stating that different systems produce opposite responses to light of different wavelengths.
Figure 7.25
Spectral Sensitivities of Human Photopigments
Figure 7.26
How Flowers Look to the Birds and the Bees
Spectrally Opponent Cell
A visual receptor cell that has opposite firing responses to different regions of the spectrum.
Figure 7.27
Responses by the Four Main Types of Spectrally Opponent Cells in Monkey LGN
Figure 7.28
A Model of the Connections of Wavelength Discrimination Systems in the Primate Retina
