In “Brightness Discrimination and Neutral Point Testing in the Horse,” published in the Canadian Journal of Zoology, Gudrun Geisbauer, Ulrike Griebel, Axel Schmid, and Brian Timney have finally figured out a test to determine whether horses can see colors or not. They have discovered that even though horses have some of the largest eyes among the ver
tebrates, the vision is considered to be poor because of a low count of cones on the retina. These men used multiple different horses in their study. First, they started by showing them one color ring among three other grey rings. They kept repeating this until they figured out what colors the horses were able to discriminate. After the experiments were completed, the outcome was that all horses do not see the same colors. Some horses could discriminate red and blue but not green while others could discriminate green and yellow and not blue. There were also some who could discriminate all four colors. For years, scientists have been trying to figure out whether or not horses can see color. After this test, they finally have an answer.
tebrates, the vision is considered to be poor because of a low count of cones on the retina. These men used multiple different horses in their study. First, they started by showing them one color ring among three other grey rings. They kept repeating this until they figured out what colors the horses were able to discriminate. After the experiments were completed, the outcome was that all horses do not see the same colors. Some horses could discriminate red and blue but not green while others could discriminate green and yellow and not blue. There were also some who could discriminate all four colors. For years, scientists have been trying to figure out whether or not horses can see color. After this test, they finally have an answer.
1 comment:
I never knew that horses vision was bad. The blinders that they put on them must help them focuse as well.
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