What you see is what you get, right? Well, it seems it’s not quite that simple. A growing body of scientific work has studied how what we perceive — or think we perceive — can have less to do with reality than we think. In light of recent findings, Jonah Lehrer, editor-at-large for Seed magazine and author of “Proust was a Neuroscientist,” says it’s time to radically rethink notions like “you get what you pay for.”