Monkey Color Test

Two male squirrel monkeys now see the world in a whole new way. For a pair of squirrel monkeys named Sam and Dalton, the world recently got more colorful. Male squirrel monkeys are normally red-green colorblind, which means they have trouble seeing those colors.

But now, thanks to an experiment by scientists at the University of Seattle, Sam and Dalton see things differently-they seem to be able to see red and green. Animals (including people) are able. Discover the fascinating world of monkey color perception and find out if these animals are truly colorblind.

Explore the latest research and understanding of how monkeys see the world through their eyes. Gene Therapy Here is one of our squirrel monkeys, Dalton, who was treated for red-green color blindness enjoying a feast of colored fruits and vegetables. The image on the left was digitally altered to simulate what the scene would look like to a person (or monkey) with red.

A squirrel monkey named Dalton takes a color vision test in which he has to touch the area on the screen showing a patch of colored dots.(Image credit: Neitz Laboratory.). This expanded color perception is a distinguishing feature in many primates. A Spectrum of Sight: Monkey Color Vision Monkey species exhibit a fascinating range of color vision capabilities, largely depending on whether they are Old World or New World monkeys.

Macaque monkeys, which normally have trichromatic color vision that is nearly identical to humans, have been used extensively in neurophysiological studies of color vision. In the present study we employed two tests, a pseudoisochromatic color discrimination test and a monochromatic light detection test, to compare the color vision of genetically. Collectively, this body of work demonstrates the utility of the macaque model for studying color vision and supports the idea that what we learn about color processing in the macaque will transfer directly, or nearly so, to the human.

The Monkey's NestMason source Colour Level (0 - 100) Steps (0 - 60) Text. In the present study we employed two tests, a pseudoisochromatic color discrimination test and a monochromatic light detection test, to compare the color vision of genetically identified dichromatic macaques (Macaca fascicularis) with that of normal trichromatic macaques.