“My research interests stemmed from a curiosity for studying human behavior and our motivations when it comes to food,” said Honohan. “We chose Oreos not only because they are America’s favorite cookie, and highly palatable to rats, but also because products containing high amounts of fat and sugar are heavily marketed in communities with lower socioeconomic statuses.”For the study, Honohan and two other students devised a maze. On one end of the maze, hungry rats would find an Oreo. On the other, hungry rats would find rice cakes. The rats gravitated toward the Oreo, and like all Oreo-cultured eaters, they would “ break it open and eat the middle first.”