According to the retinex theory of color vision, we perceive color by A)the rati

ID: 168305 • Letter: A

Question

According to the retinex theory of color vision, we perceive color by

A)the ratio between the rate of firing by the cones and by the rods in the retina.

B)varying levels of activity by the three types of cones.

C)comparing light patterns in different parts of the retina.

a red-green system and a yellow-blue system

A)the ratio between the rate of firing by the cones and by the rods in the retina.

B)varying levels of activity by the three types of cones.

C)comparing light patterns in different parts of the retina.

a red-green system and a yellow-blue system

Ans:

According to the retinex theory of colour vision, we perceive colour by:

B) varying levels of activity by the three types of cones.

Explanation:

- Although cones operate only in relatively bright light, they provide us with our sharpest images and enable us to see colours.

-Two or three types of cone photoreceptor and a single type of rod photoreceptor are present in the normal mammalian retina.

-The three types of cones provide us the basis of colour vision: Red absorbing cones, Green absorbing cones, Blue absorbing cones.

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