AP PSYCHOLOGY

SENSATION AND PERCEPTION

VISION SENSORY AND PERCEPTUAL PROCESSING

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the name for retinal receptors that detect black, white and gray, are sensitive to movement and are necessary for peripheral and night vision?
A
Rods
B
Cones
C
Fovea
D
Blind Spot
Explanation: 

Detailed explanation-1: -These specialized cells are called photoreceptors . There are 2 types of photoreceptors in the retina: rods and cones . The rods are most sensitive to light and dark changes, shape and movement and contain only one type of light-sensitive pigment. Rods are not good for color vision.

Detailed explanation-2: -The two types of photoreceptors in the eye are rods for black and white vision and cones for color vision. Rods are more active during periods of low ambient light, while cones are more active during periods of higher ambient light.

Detailed explanation-3: -While cone photoreceptors detect color through bright light, rod photoreceptors are sensitive to low-light levels. Rods aid in night vision and identifying black and white hues.

Detailed explanation-4: -Photoreceptors for night vision are called rods. Rods can act as light detectors even in extremely low levels of illumination but are ineffective-they are known to “saturate"-in bright light.

Detailed explanation-5: -The photoreceptor cells of the retina sensitive to colour are Cones.

There is 1 question to complete.