When it comes to , sometimes we vote with our heads and sometimes with our hearts. But scientists at say we might also be voting with our pompoms. Because they've found that our behavior at the polls is influenced by the results of local events, work published in the Proceedings of the National Academy of Sciences. Humans are emotional . And our strong feelings about one thing can spread to another. So the Stanford scientists wondered whether events that are unrelated to government performance might sway the way people feel about their elected officials. And what could be less to the workings in Washington or your state capital than college football? The researchers looked at the election results from 20 years' worth of , senatorial and gubernatorial races. And they found that a win before the election gave the incumbent a boost of almost two percentage points. The more beloved the team, the bigger the bounce. And it's not just football. In a separate survey, the scientists found that NCAA college basketball results affected presidential approval ratings. So next election day, you might think about practicing a little separation of stadium and state.