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Study: Poverty Dramatically Affects Children's Brains

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A new study finds that certain brain functions of some low-income 9- and 10-year-olds pale in comparison with those of wealthy children and that the difference is almost equivalent to the damage from a stroke.

"It is a similar pattern to what's seen in patients with strokes that have led to lesions in their prefrontal cortex," which controls higher-order thinking and problem solving, says lead researcher Mark Kishiyama, a cognitive psychologist at the University of California-Berkeley. "It suggests that in these kids, prefrontal function is reduced or disrupted in some way."

The study adds to a growing body of evidence that shows how poverty afflicts children's brains. Researchers have long pointed to the ravages of malnutrition, stress, illiteracy and toxic environments in low-income children's lives. Research has shown that the neural systems of poor children develop differently from those of middle-class children, affecting language development and "executive function," or the ability to plan, remember details and pay attention in school.

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