AP PSYCHOLOGY

Detailed explanation-1: -There are 2 types of photoreceptors: rods, which detect dim light and are used for night vision, and cones, which detect different colors and require brightly lit environments. Humans have 3 distinct color-sensing cones-for red, green, and blue light.

Detailed explanation-2: -Cones require a lot more light and they are used to see color. We have three types of cones: blue, green, and red. The human eye only has about 6 million cones. Many of these are packed into the fovea, a small pit in the back of the eye that helps with the sharpness or detail of images.

Detailed explanation-3: -There are four photoreceptor types in the human retina. Short-wavelength cones (blue), medium-wavelength cones (green), long-wavelength cones (red) and rods..

Detailed explanation-4: -Scientists have known for decades that some cells-known as cones-detect color. They are part of the retina inside the back of the eye. Cone cells can sense red, green or blue light.

Detailed explanation-5: -Two types of photoreceptors reside in the retina: cones and rods. The cones are responsible for daytime vision, while the rods respond under dark conditions. The cones come in three varieties: L, M, and S types (for long, middle, and short wavelength).