Photo: Rakesh Rocky
By:Â Saira Malhotra
We have seen the paintings that create an optical illusion over and over, and each time we are dumbfounded. The mind enjoys playing momentary tricks on us and if we could see its face, we know its smile would be wry. When the mind games are obvious, we are able to call them out, but what about when they aren’t so obvious?
This week, NPR looked at the Delboeuf illusion, understanding how two dots of the same size, appear different when outlined by different-sized circles and the relationship this has with food consumption. Based on this understanding, Professor of Marketing at Georgia Tech, Koert Van Ittersum and Director of the Food and Brand Lab at Cornell, Brian Wansink, conducted a study to understand the impact of illusions and serving size.
When participants were asked to estimate volumes of soup in smaller bowls versus the same volume in larger bowls, their estimates confirmed the Delboeuf illusion. Read More