Exam 5: Perceiving Color

An observer views two complex scenes: Scene one is illuminated by a blue light,and scene two is illuminated by a yellow light.As a result,a yellow surface in the first scene and a blue surface in the second scene each now have identical flat spectral power distributions of reflected light. (A)What is the perceived color of each surface described within each scene? (B)If each scene is covered up so that only the blue or yellow surface is visible,how does the perceived color change?

Trichromatic representation works well for ,while the opponent color representation works well for .

Color

Concerning inherited color vision deficiencies,

What is the principle of univariance? How does this principle explain why one type of cone is insufficient for distinguishing different colors (i.e. ,wavelengths of light).

According to the principle of univariance,the absorption of one photon of light by a cone receptor

Achromatopsia

The explains why night vision (i.e. ,with rods)is colorblind.

Why is it more efficient for the visual system to utilize color opponency rather than simply to register the absolute responses of each type of cone in color identification?

Photopigment bleaching refers to

Complementary colors are degrees apart on the color circle.

According to your text,digital color printing does not use ink.

When the illumination across a scene is ,lightness constancy be explained by the ratio principle.

Which of the following is considered support for opponent color representation?

Pointillist painters

Research has shown that the proportion of is fairly small compared to the other types of photoreceptors.

Chromatic adaptation occurs with

Which of the following about color-opponent neurons has been found?

This retinal circuit would code for color by increasing its response rate for and decreas- ing its response rate for .

In Hurvich and Jameson's (1957)study of hue cancellation,