PSYCH 1XX3 Lecture Notes - Lecture 6: Complementary Colors, Afterimage, Retina
Document Summary
Then try an afterimage that is in colour and you"ll see that the afterimage is the complementary colour of the original thing you stared at. So, if you stare at this greenish rose with the reddish stem for 30 seconds and then look at this white surface, you"ll see a red rose with a green stem. Stare at a blue stay for 30 seconds and then shift to a yellow surface. What you will see is a brighter yellow star on the yellow surface. So we have receptors that provide red-green information and others that provide blueyellow or black-white information. So, it"s likely that same colour receptor has two different channels, and the colour you perceive depends on what channel you"re on or how fast the cell is firing. Example: when you stare at a green square, all your green-red colour receptors are excited, firing at a rate that is much faster than baseline.
