PSL300H1 Lecture Notes - Lecture 19: Tympanic Duct, Conductive Hearing Loss, Oval Window
Document Summary
Colour vision: cpu screens have red, green, blue so how do we see yellow, yellow light activates red and green cones, not blue cones brain knows you are seeing yellow. Ganglion cells excited by red & green cones (r + g cells = y) Ganglion cells excited by red, inhibited by green (r g cells) Ganglion excited by green, inhibited by red (g r cells) Color-opponent cells are in lateral geniculate nucleus (lgn) in the thalamus, retina, & the visual cortex. Daltonism = red-green colour blindness red and green pigments" genes on x chromosome blue pigment gene on c7. Tetrachromat: woman, two x chromosomes, slightly different red pigment genes or green pigments. Colour constancy: inferring correctly the intrinsic colour of something in different illumination (yellow banana in green light is yellow) Reflectance: intrinsic colour of a thing (colour it reflects, you see, e. g. banana reflects yellow light) Illumination: colour applied to something e. g. chevreul illusion.
