Vision Flashcards
0
Q
Intensity (brightness)
A
Amount of energy per unit of time (brightness)
1
Q
Light waves
A
Electromagnetic waves that stimulate receptors in the eye.
2
Q
Wavelength (color)
A
Distance between two wave crests.
3
Q
Trichromatic theory (young-helmholtz)
A
Three types of cones detect three wavelengths of light. Blue, green, and read. This theory does not explain negative afterimages.
4
Q
Negative after image
A
If you stare at one color and then look at whitespace you see a color after image in the complementary hue of the original stimulus.
5
Q
Opponent-process theory
A
Receptor cells are arranged in pairs: red, green, blue, yellow, and black, white. If one color is stimulated, the other is inhibited.
