In this video I explain synesthesia, in which stimulation of one sense can automatically stimulate another, such as seeing colors when hearing pitches or tasting sounds. I also demonstrate one way that researchers can test certain types of synesthesia and … Read More
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). … 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, … Read More
Photoreceptors, Receptive Fields, and Lateral Inhibition
In this video I go into more detail on the retina, describing the two main types of photoreceptors (rods and cones) and how they operate in different levels of light. Next I describe the composition of receptive fields and how … Read More