PSYCH 1XX3 Lecture Notes - Lecture 6: Human Factors And Ergonomics, Mccollough Effect, Color Blindness
5 Mar 2018
School
Department
Course
Professor
Document Summary
Limits of visual detection bias your view. If we had sensitivity to infrared lights, then you can see where someone has been over time. Unique combined receptor activity produces distinct colour perception. In order for us to see colour, we need to distinguish the different wavelengths. You need two different types of cones to see colours. You could be a dichromate-or there could be a major overlap between two cones. Enchroma glasses-glasses filter out different wavelengths of light so a person with red green colour blindness can see the bright colours. Some species have 4 different colour receptors (tetrachromat)-perception of zebrafinch. Used for mating and helping birds identify each other. Poisonous frog wants to draw attention to itself. Deer don"t see colour, so hunters with bright orange vests don"t stand out. Marmosets were supposed to forage for cereal: trichromats foraged more orange but equal at green, performance equal when viewing distance was <0. 5 m.
