‘Larson and Loschky found that if the central part of the photo was missing, people
could still identify what they were looking at. But when the peripheral part of the image
was missing, then they couldn’t say whether the scene was a living room or a kitchen.
They tried obscuring different amounts of the photo. They concluded that central vision
is the most critical for specific object recognition, but peripheral vision is used for getting
the gist of a scene.’
From ‘100 Things Every Designer Should Know About People’ by Susan Weinschenk