
At what point does a person cease to be, well human? Nearly a decade of research suggests that the answer largely hinges on if they are part of your group or not.
Noting that nearly every conflict throughout history was marked with clear dehumanization of the opposition (e.g., during WWII Japanese people were depicted as rats and beasts in the media), Jacques-Phillipe Lyens sought to test these effects. The problem was that it was tricky to get people to say, for instance, that a given group was an animal. It turns out humans largely are unaware of the ways they dehumanize others.
So Lyens did something incredibly clever. He discovered that many emotions were percieved to be more in humans than animals (e.g., sorrow, nostalgia). He and his colleagues reasoned then, that if people see people of different groups as less human than them, then they should see their own group as higher in these uniquely human emotions.
Well a decade later, as many as two dozen published studies support this hypothesis. People see their own group as more human, and outgroups as less human. This isn't a small matter, because research also shows that when we harm another group, we tend to see them as less human, and further, this occurs even when we feel guilty. And further, research shows that such subtle ways of humanizing our own group are related to increased violence against different groups.



















