PSYCH 1XX3 Lecture Notes - Lecture 7: Tetrachromacy, Dichromacy, Ganglion
Document Summary
Wavelengths need to be put into aps. Trichromats only have the 3 types of colour receptors. Some species have 4 types of colour receptors. Some birds can see ultraviolet that has colours we can"t even imagine. Some humans have a genetic mutation making them tetrachromats, more common in women (up to 2%) The marmosets some are tri and some are di. Coloured kix green, some orange, some neutral: how many pieces of this food were they able to find, trichromats find more total foods than the dichromats, happened more when they were far away. Women on left had more estrogen levels than women on right, women on left seemed more attractive. Black and white ganglion cells are brightness detectors. Brains interpretation of increase of activity of red green ganglion cell is. If red light shines on perception of red. Perception of yellow is equal perception of green-red type cones. Yellow excited green-red, excitation of yellow-blue, and then inhibits green-red again.
