Ant Tanant — Fri, 26 Jan 2007 14:53:06 GMT

So based on what you wrote above, this illusion (http://www.matthewroddy.com/mental/angry_face.htm) results from the M pathway picking up on the shapes and luminance of the faces as you step away from your monitor. If you squint at the faces (same as stepping back) you’ll see the facial shadows are switched on the faces, which makes the face on the left look angry from a distance. As you get closer the P pathway kicks in.

Ant Tanant — Wed, 11 Jun 2008 19:34:44 GMT

Great article, Alexa. At my previous job I used this method for the same purpose as well. I went this route because I a) lacked the knowledge to get it to work with real code, b) we didn’t have a full type prototyper, and c) it was much faster and didn’t require dev resources—granted I knew the basics of Flash so the transition was easier. At my current job we have a full time prototyper, but I still find this method great for quick studies that require the demonstration of interactions.

Boxes and Arrows: Comments by Ant Tanant