You’ve probably seen the “spinning woman” illusion as it circulated around the internet, complete with bogus claims that it can somehow be used to determine whether you’re “right-brained” or “left-brained” (themselves concepts of amorphous meaning and validity).
But nonetheless it’s an interesting illusion, and vision scientist Michael Bach (who has a great illusions page) suggested a Casual Fridays study based on the illusion. Some people see it spinning in one direction, some people see it spinning in reverse, and some can see it both ways. Do the people who can see the illusion have anything in common? Or is the ability to experience it/reverse it pretty much random? We’ve designed a quick study that may shed some light on the problem.
As usual, the study is brief, with around 12 questions. It should take just a few minutes of your time. You have until Thursday, October 9, to respond. There is no limit on the number of responses.
Don’t forget to come back next Friday to see the results!