How does the trichromatic theory (Young-Helmholtz theory)explain color vision?
A)The brain compares responses in one retinal area to responses in another.
B)The brain responds to the ratio of firing among three types of cones.
C)The brain has a red-versus-green system and a yellow-versus-blue system.
D)The brain compares the amplitude of an action potential to its velocity.

Question

How does the trichromatic theory (Young-Helmholtz theory)explain color vision?​
A)The brain compares responses in one retinal area to responses in another.
B)​The brain responds to the ratio of firing among three types of cones.
C)​The brain has a red-versus-green system and a yellow-versus-blue system.
D)​The brain compares the amplitude of an action potential to its velocity.

Quizplus · Accepted Answer

The trichromatic theory, also known as the Young-Helmholtz theory, explains color vision by stating that the human eye has three types of color receptors, or cones, that respond primarily to blue, green, and red wavelengths of light. These cones send signals to the brain, which processes the ratio of firing among the three cone types to determine the color perceived by the viewer. This theory helps explain why people with color blindness might have difficulty distinguishing between colors that activate similar cones, such as red and green.

How Does the Trichromatic Theory (Young-Helmholtz Theory)explain Color Vision?​

How Does the Trichromatic Theory (Young-Helmholtz Theory)explain Color Vision?