One Tulane professor has pinpointed yet another reason people are increasingly polarized: internet search terms.

After studying nearly 10,000 participants on a variety of subjects from gas prices to caffeine, Eugina Leung, an assistant professor at Tulane’s A. B. Freeman School of Business, has concluded we need to reexamine the way we search for information.

Leung was the lead author of a study on the way people use search terms, with results published in the Proceedings of the National Academy of Sciences. We spoke to her about her research in this interview, which has been edited for clarity and length.

Let's begin with a basic explanation of your study.

The main idea is how do people actually search? Our research basically shows that when people are looking up information online, w

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