Evan KafkaI’m sitting in the soft-spoken cognitive neuroscientist’s spotless office, nestled within New York University’s psychology department, but it feels like I’m at the doctor’s office getting a dreaded diagnosis. On his giant monitor, Amodio shows me a big blob of data depicting where people score on the Implicit Association Test (IAT). The test measures racial prejudices that we cannot consciously control. I’ve taken it three times now. This time around, my uncontrolled prejudice, while clearly present, has come in significantly below the average for white people like me.
That certainly beats the first time I took the IAT. That time, my results showed a “strong automatic preference” for European Americans over African Americans. That was not a good thing to hear, but it’s extremely common—51 percent of online test takers show moderate to strong bias.
The test asks you to rapidly categorize images of faces as either “African American” or “European American” while you also categorize words (like evil, happy, awful, and peace) as either “good” or “bad.” Faces and words flash on the screen, and you tap a key, as fast as you can, to indicate which category is appropriate.
Sometimes you’re asked to sort African American faces and “good” words to one side of the screen. Other times, black faces are to be sorted with “bad” words. As words and faces keep flashing by, you struggle not to make too many sorting mistakes.
And then suddenly, you have a horrible realization. When black faces and “bad” words are paired, you feel yourself becoming faster in your categorizing—an indication that the two are more easily linked in your mind.
You think of yourself as a person who strives to be unprejudiced, but you can’t control these split-second reactions. As the milliseconds are being tallied up, you know the tale they’ll tell: When negative words and black faces are paired, you’re a better, faster categorizer. Which suggests that racially biased messages from the culture around you have shaped the very wiring of your brain.
We’re not born with racial prejudices. We may never even have been “taught” them. Rather, explains University of Virginia psychologist Brian Nosek, prejudice draws on “many of the same tools that help our minds figure out what’s good and what’s bad.” In evolutionary terms, it’s efficient to quickly classify a grizzly bear as dangerous. The trouble comes when the brain uses similar processes to form negative views about groups of people.
But here’s the good news: Research suggests that once we understand the psychological pathways that lead to prejudice, we just might be able to train our brains to go in the opposite direction.
Our Brain Is a File Cabinet
Dog, cat. Hot, cold. Black, white. Male, female. We constantly categorize. We have to. Sorting anything from furniture to animals to concepts into different folders inside our brains is something that happens automatically, and it helps us function. In fact, categorization has an evolutionary purpose: Assuming that all mushrooms are poisonous and that all lions want to eat you is a very effective way of coping with your surroundings. Forget being nuanced about nonpoisonous mushrooms and occasionally nonhungry lions—certitude keeps you safe.
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But a particular way of categorizing can be inaccurate, and those false categories can lead to prejudice and stereotyping. Much psychological research into bias has focused on how people “essentialize” certain categories, which boils down to assuming that these categories have an underlying nature that is tied to inherent and immutable qualities.
Like other human attributes (gender, age, and sexual orientation, for example), race tends to be strongly—and inaccurately—essentialized. This means that when you think of people in that category, you rapidly or even automatically come up with assumptions about their characteristics. Common stereotypes with the category “African Americans,” for example, include “loud,” “good dancers,” and “good at sports.” Essentialism about any group of people is dubious—women are not innately gentle, old people are not inherently feebleminded—and when it comes to race, the idea of deep and fundamental differences has been roundly debunked by scientists.
Even people who know that essentializing race is wrong can’t help absorbing the stereotypes that are pervasive in our culture. In polls, for example, few Americans admit holding racist views. But when told to rate the intelligence of various groups, more than half exhibited strong bias against African Americans. Even the labels we use seem to affect our level of prejudice: Another study found that test subjects associated the term black with more negative attributes—such as low socioeconomic status—than African American.
We’re Herd Animals
Humans are tribal creatures, showing strong bias against those we perceive as different from us and favoritism toward those we perceive as similar. In fact, we humans will divide ourselves into in-groups and out-groups even when the perceived differences between the specific groups are completely arbitrary.
In one study, subjects are asked to rate how much they like a large series of paintings, some of which are described as belonging to the “Red” artistic school and others to the “Green” school. Then participants are randomly sorted into two groups, red or green. In subsequent tasks, people consistently show favoritism toward the arbitrary color group to which they are assigned.
In other words, if you give people the slightest push toward behaving tribally, they’ll happily comply. So if race is the basis on which tribes are identified, expect serious problems.
One simple evolutionary explanation for our tendency toward tribalism is safety in numbers. You’re more likely to survive an attack from a marauding tribe if you join forces with your buddies. And primal fear of those not in the in-group also seems closely tied to racial bias.
Amodio’s research suggests that one key area associated with prejudice is the amygdala, a small and evolutionarily ancient region in the middle of the brain that is responsible for triggering the notorious fight-or-flight response. In interracial situations, Amodio explains, amygdala firing can translate into anything from “less direct eye gaze and more social distance” to literal fear and vigilance toward those of other races.
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