I've also seen it explained by looking at the foot, and that the foot never changes spin direction, but by starting from the foot you can change the perceived (figure/ground aspect) direction of spin.
Annette Annette Kujawski Taylor, Ph.D. Professor of Psychology University of San Diego 5998 Alcala Park San Diego, CA 92110 619-260-4006 [EMAIL PROTECTED] ---- Original message ---- >Date: Tue, 05 Feb 2008 10:54:25 -0600 >From: Jim Dougan <[EMAIL PROTECTED]> >Subject: Re: [tips] Never Seen This One Before >To: "Teaching in the Psychological Sciences (TIPS)" <[email protected]> > >At 10:45 AM 2/5/2008, you wrote: > > >>Friends, >> >>One of my colleagues here forwarded the attached image file to me >>and asked if I could explain why the dancer is sometimes seen as >>spinning to the left and sometimes to the right. I don't buy the >>left brain/right explanation that came with it, but I have no real >>idea why it works. Can anyone help me out? >> >>Thanks, >>Larry >> > > > > >Cool demo.... > >I can actually make her pan right to left, left to right - just going >back and forth and never doing a complete circle... > >I think it is a classic figure/ground kinda thing. The key to >getting her to reverse directions is seeing that the leg is in the >foreground (in front of her body) or the leg is in the background >(behind her body). With a bit of practice I can do it at will... > >No left/right brain thing here at all > > >--- >To make changes to your subscription contact: > >Bill Southerly ([EMAIL PROTECTED]) --- To make changes to your subscription contact: Bill Southerly ([EMAIL PROTECTED])
