Question

Theories of color vision.

Hint:

The combination of both theories provides a comprehensive explanation of how we perceive colors.

Answer 1

Step 1: Understanding Theories of Color Vision.
There are several theories that explain how we perceive color. Two major theories are as follows:

1. Trichromatic Theory (Young-Helmholtz Theory):
This theory suggests that the human eye has three types of color receptors (cones) sensitive to red, green, and blue light. These cones work together to produce the perception of all colors. The brain combines the signals from these three cones to interpret color.

2. Opponent Process Theory (Hering's Theory):
This theory proposes that color vision is based on three opposing color pairs: red-green, blue-yellow, and black-white. It states that certain cells in the retina and brain are activated by one color in a pair and inhibited by its opposite. This theory explains why we don't see colors like "reddish-green" or "yellowish-blue."

Step 2: Conclusion.
Both theories contribute to explaining the complex phenomenon of color vision. While the trichromatic theory explains the detection of color, the opponent process theory explains how the brain processes the color information.