Visual Sensory System

Question 1

What are the theories of color?

Answer 1

There is trichromatic theory and opponent-process theory

Question 2

What is afterimage?

Answer 2

Afterimage is when there are images that occur when a visual sensation persists for a brief time even after the original stimulus is removed.

Question 3

What are the three types of cones that trichromatic theory produces?

Answer 3

red, blue and green.

Question 4

What is the opponent-process theory?

Answer 4

This theory proposes that visual neurons are stimulated by light of one colour and inhibited by light of another color.