TIME Ideas
ideas.time.com/2012/01/11/what-your-eyes-say-about-who-you-are
From the page
Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.
People who successfully solved the problem_ Grant and Spivey found_ looked more often at a certain part of diagram. In round two their experiment_ they visually highlighted this feature — doubled number participants got problem right. Showing people’s eyes where to go can actually promote insight improve reasoning_ authors concluded; words_ “guiding attention guides thought.”