Removed Clip 1: Checkershadow Illusion
A demonstration of Edward H. Adelson's Checkershadow illusion was attempted during lecture, but it did not work.
Checkershadow illusion: squares A and B are actually the same color. (Image courtesy of Professor Edward H. Adelson. Used with permission.)
Animated demonstration and explanation by Prof. Michael Bach
Removed Clip 2: Selective Attention Test
This video is from profsimons via YouTube, and is not covered under our Creative Commons license.