AP PSYCHOLOGY

Detailed explanation-1: -Rods = retinal receptors that detect black, white, and gray; necessary for peripheral and twilight vision, when cones don’t respond.

Detailed explanation-2: -The retina of our eyes contains two types of photoreceptors – rods and cones. The cones detect colour. The rods only let us see things in black, white and grey.

Detailed explanation-3: -The rods are responsible for scotopic or twilight vision and the cones are responsible for photopic or daylight vision.

Detailed explanation-4: -There is no color response with the rod system. Rods produce a black and white response, which is actually a reaction to variations in luminance. Moving from a very light environment into a dark environment results in a change in sensitivity of the visual system due to dark adaptation.

Detailed explanation-5: -Photoreceptors that detect grey tones in low light are called rods. Rods are cylindrical neurons found in the retina of the eye.