Are Humans Hardwired to Be Cruel to Each Other?
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Our implicit biases are rooted in biology, but they can be easily manipulated. That's both really good and really bad.Robert Sapolsky has a bone to pick with oxytocin, or rather the public's perception of oxytocin. It is the love hormone, we've surely all read by now. It helps us bond to our parents, then to our lovers and later to our own children. An extra dose can increase empathy, goodwill, and understanding. But it's not all sunshine and rainbows, here's the catch: those warm fuzzy feelings are only generated for people you already favor. Oxytocin, represented more honestly, is the hormone of love and violence. Its effect in the presence of people you consider "others" is preemptive aggression, and less social cooperation. It creates distance as often as it bonds love, and we are hardwired for those social dichotomies.
Humans invent "Us" and "Them" groups wherever they look, whether it's on the basis of sex, race, nationality, class, age, religion, hair color—there's nothing we won't discriminate against, and we do it within a twentieth of a second of seeing someone. Are they an "Us" or are they a "Them"? The flaw in this hardwired thinking reflex is also its silver lining: it is ridiculously easy to manipulate. A racial bias can be duped by something so simple as putting a cap with your favorite sports team's logo on someone's head, for example. You can overthrow your brain's most primal reactions in this way but, as history shows, other people can also get in your head and manipulate the Us versus Them reflex to tragic and catastrophic results.
Robert Sapolsky is the author of Behave: The Biology of Humans at Our Best and Worst.
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ROBERT M SAPOLSKY :
Robert M. Sapolsky holds degrees from Harvard and Rockefeller Universities and is currently a Professor of Biology and Neurology at Stanford University and a Research Associate with the Institute of Primate Research, National Museums of Kenya. His most recent book is Behave: The Biology of Humans at Our Best and Worst.
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TRANSCRIPT:
Robert Sapolsky: So when you look at us—us as humans, as apes, as primates, as mammals—when you look at some of the most appalling realms of our behavior, much of it has to do with the fact that social organisms are really, really hardwired to make a basic dichotomy about the social world, which is those organisms who count as Us’s and those who count as Thems.
And this is virtually universal among humans and this is virtually universal among all sorts of social primates that have aspects of social structures built around separate social groupings. Us’s and Thems: we turn the world into Us’s and Thems and we don’t like the Thems very much and are often really awful to them. And the Us’s, we exaggerate how wonderful and how generous and how affiliative and how just like siblings they are to us. We divide the world into Us and Them.
And one of the greatest ways of seeing just biologically how real this fault line is, is there’s this hormone oxytocin. Oxytocin is officially the coolest, grooviest hormone on earth, because what everybody knows is it enhances mother-infant bonding and it enhances pair bonding in couples. And it makes you more trusting and empathic and emotionally expressive and better at reading expressions and more charitable. And it’s obvious that if you just, like, spritzed oxytocin up everyone’s noses on this planet it would be the Garden of Eden the next day.
Oxytocin promotes prosocial behavior. Until people look closely. And it turns out oxytocin does all those wondrous things only for people who you think of as an “Us”, as an in-group member. It improves in-group favoritism, in-group parochialism.
What does it do to individuals who you consider a Them? It makes you crappier to them, more preemptively aggressive, less cooperative in an economic game. What oxytocin does is enhance this Us/Them divide. So that, along with other findings—the classic lines of Us versus Them along the lines of race, of sex, of age, of socioeconomic class: your brain processes these Us/Them differences on the scale of milliseconds, a twentieth of a second, your brain is already responding differently to an Us versus Them.
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