Psychologists once believed that only bigoted people used stereotypes. Now the study of unconscious bias is revealing the unsettling truth: We all use stereotypes, all the time, without knowing it. We have met the enemy of equality, and the enemy is us.
Mahzarin Banaji doesn't fit anybody's ideal of a racist. A psychology professor at Yale University, she studies stereotypes for a living. And as a woman and a member of a minority ethnic group, she has felt firsthand the sting of discrimination. Yet when she took one of her own tests of unconscious bias. "I showed very strong prejudices," she says. "It was truly a disconcerting experience." And an illuminating one. When Banaji was in graduate school in the early 1980s, theories about stereotypes were concerned only with their explicit expression: outright and unabashed racism, sexism, anti-Semitism. But in the years since, a new approach to stereotypes has shattered that simple notion. The bias Banaji and her colleagues are studying is something far more subtle, and more insidious: what's known as automatic or implicit stereotyping, which, they find, we do all the time without knowing it. Though out-and-out bigotry may be on the decline, says Banaji, "if anything, stereotyping is a bigger problem than we ever imagined."
Previously, researchers who studied stereotyping had simply asked people to record their feelings about minority groups and had used their answers as an index of their attitudes. Psychologists now understand that these conscious replies are only half the story. How progressive a person seems to be on the surface bears little or no relation to how prejudiced he or she is on an unconscious level--so that a bleeding-heart liberal might harbor just as many biases as a neo-Nazi skinhead.
As surprising as these findings are, they confirmed the hunches of many students of human behavior. "Twenty years ago, we hypothesized that there were people who said they were not prejudiced but who really did have unconscious negative stereotypes and beliefs," says psychologist lack Dovidio, Ph.D., of Colgate University "It was like theorizing about the existence of a virus, and then one day seeing it under a microscope."
The test that exposed Banaji's hidden biases--and that this writer took as well, with equally dismaying results--is typical of the ones used by automatic stereotype researchers. It presents the subject with a series of positive or negative adjectives, each paired with a characteristically "white" or "black" name. As the name and word appear together on a computer screen, the person taking the test presses a key, indicating whether the word is good or bad. Meanwhile, the computer records the speed of each response.
A glance at subjects' response times reveals a startling phenomenon: Most people who participate in the experiment--even some African-Americans--respond more quickly when a positive word is paired with a white name or a negative word with a black name. Because our minds are more accustomed to making these associations, says Banaji, they process them more rapidly. Though the words and names aren't subliminal, they are presented so quickly that a subject's ability to make deliberate choices is diminished--allowing his or her underlying assumptions to show through. The same technique can be used to measure stereotypes about many different social groups, such as homosexuals, women, and the elderly.
THE UNCONSCIOUS COMES INTO FOCUS
From these tiny differences in reaction speed--a matter of a few hundred milliseconds--the study of automatic stereotyping was born. Its immediate ancestor was the cognitive revolution of the 1970s, an explosion of psychological research into the way people think. After decades dominated by the study of observable behavior, scientists wanted a closer look at the more mysterious operation of the human brain. And the development of computers--which enabled scientists to display information very quickly and to measure minute discrepancies in reaction time--permitted a peek into the unconscious.
At the same time, the study of cognition was also illuminating the nature of stereotypes themselves. Research done after World War II--mostly by European emigres struggling to understand how the Holocaust had happened--concluded that stereotypes were used only by a particular type of person: rigid, repressed, authoritarian. Borrowing from the psychoanalytic perspective then in vogue, these theorists suggested that biased behavior emerged out of internal conflicts caused by inadequate parenting.
The cognitive approach refused to let the rest of us off the hook. It made the simple but profound point that we all use categories--of people, places, things--to make sense of the world around us. "Our ability to categorize and evaluate is an important part of human intelligence," says Banaji. "Without it, we couldn't survive." But stereotypes are too much of a good thing. In the course of stereotyping, a useful category--say, women--becomes freighted with additional associations, usually negative. "Stereotypes are categories that have gone too far," says John Bargh, Ph.D., of New York University. "When we use stereotypes, we take in the gender, the age, the color of the skin of the person before us, and our minds respond with messages that say hostile, stupid, slow, weak. Those qualities aren't out there in the environment. They don't reflect reality."
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