Author's Suggestions for Positive Afterimages

title description rating post date author
The Thaumatrope

This lesson contains plans and materials for constructing a thaumatrope, a Victorian era animation toy that blends two images together by making use of human persistence of vision. All that's needed is an index card and some string.

3.25
Average: 3.3 (4 votes)
10-Jun-13 guy vitruvian geek thaumatrope
Color Perception

This lesson provides a tutorial in color perception and the physiology of color sensitive cells in the eye. It includes three classroom activites for exploring color vision:

  1. a game testing peripheral color vision
  2. a demonstration of mixing colored light...
4.142855
Average: 4.1 (7 votes)
8-May-13 guy photoreceptor response
Yang and Yin - negative afterimages

This lesson provides a tutorial on the mechanism behind negative afterimages, and includes three afterimage illusions for demonstration. Lecture slides are attached with all images.

For more examples of optical illusions caused by visual desensitization, check out our...

3.666665
Average: 3.7 (6 votes)
8-May-13 guy Mona Lisa negative