Constancy scaling theory and the Mueller-Lyer illusion: More disconfirming evidence

Abstract

Listen

Translate article

Length and width judgments were made for modified Mueller-Lyer figures (the center shaft of each of the two figures was replaced by a rectangle). The rectangle with outgoing fins was judged longer and wider than a control rectangle of equal size with no fins, but longer and narrower than the rectangle with ingoing fins. The rectangle with ingoing fins was judged shorter and wider than the control rectangle. These results did not support Gregory’s inappropriate constancy scaling explanation of the Mueller-Lyer illusion.