Understanding Colorblindness

In this video I explain different types of colorblindness and what can cause people to have difficulty differentiating colors, either from the lack of a cone type (-anopia) or if the sensitivity of a cone type has been shifted (-anamoly). I also explain how red-green colorblindness is a sex-linked trait because it is located on the X chromosome. I briefly … Read More

Color Vision: Trichromatic and Opponent Process Theories

In this video I discuss how color vision occurs and explain two important theories for understanding color vision; Young-Helmholtz Trichromatic Theory and Opponent Process Theory. Along the way I describe how some people are able to see ultraviolet (UV) light, a trick you can use to see infrared light, and two demonstrations of color afterimages.   Don’t forget to subscribe … Read More