"gripping and hugely entertaining... difficult to put down."
- New Scientist
Even read by Werner Voguls (Amazon CTO)
Illusions © Akiyoshi KITAOKA, Professor, Department of Psychology, Ritsumeikan University, Kyoto, Japan - used with permission
Text © Sencillo Press and Gruff Davies 2010
Professor Kitaoka spotted this wonderful real-world example of the checker shadow illusion. Tile B appears lighter in shade than tile A, yet when the tiles are take out of context (pic 3) we see that in fact A is lighter! Our vision system compensates for shadows, and interprets the colours as they would be without shadows because this is more useful to us.
pic 1 - original
pic 2 - labelled
pic 3 - context removed