Sigma motion visual illusion in R

August 21, 2012

(This article was originally published at mages' blog, and syndicated at StatsBlogs.)

Michael Bach, who is a professor and vision scientist at the University of Freiburg, maintains a fascinating site about visual illusions. One visual illusion really surprised me: the sigma motion.

The sigma motion displays a flickering figure of black and white columns. Actually it is just a chart, as displayed below, with the columns changing backwards and forwards from black to white at a rate of about 30 transitions per second.

Read more »

Please comment on the article here: mages' blog

Tags: , , , , , , ,