Race Matters To 3-Month-Olds, Study Finds

World-Science.net, Feb. 15, 2006

You should judge someone not by the color of his skin, civil-rights leader Martin Luther King declared 43 years ago, but by the content of his character. Yet new research suggests that to achieve this ideal, you may have unlearn years’ worth of mental habits—a daunting number of years. Such as your current age, minus three months.

That’s because a study has found that by this age—three months—many babies start to prefer faces of people from their own race to those of another race. This early favoritism may represent the first glimmers of racial prejudice, psychologists say.

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The researchers—Yair Bar-Haim of Tel-Aviv University, Israel, and colleagues—noted that previous studies had found infants tend to recognize faces from their own race better than those from other races. But theirs was the first to suggest an actual preference for same-race faces at this early age, they added.

They studied 36 infants from three groups: white babies raised among mainly white people in Israel; black infants similarly raised among their own people, in Africa; and black babies raised in a mixed black-and-white environment.

The researchers sat each baby on its mother’s lap and in front of a computer screen. Some clicking sounds and visual effects then appeared on the screens to draw the infants’ attention. Next, eight pairs of photos of black and white faces appeared onscreen, side by side, in succession.

The researchers analyzed whether the babies spent more time looking at the white or black faces. This is a standard sort of psychology test, they wrote; psychologists generally believe longer gazes at one face indicate preference for it. The researchers tried to match faces in each pair for attractiveness, so that this wouldn’t sway the young participants’ preferences.

White babies raised in white environments spent an average of 63 percent more time looking at white faces, the study found. Their African-raised counterparts spent 23 percent more time looking at faces from their own race than the other. Black babies raised in mixed-race environments spent roughly equal amounts of time looking at both types.

This suggests that “significant exposure to other-race faces can block the development of own-race preference,” Bar-Haim and colleagues wrote.

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