Math for Babies? What You Need to Know
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With their bright, wide eyes and tender skin, babies are the epitome of innocence. So it's easy to assume that they understand very little about the world around them, and for many years, researchers concluded just that. They generally regarded a baby's brain as a naive, blank slate—and placed the vast majority of responsibility for cultivating his intelligence on the power of nurture. The newest wave of research is proving that it’s not quite that simple.
"New laboratory experiments have shown that, from very early on in life, babies think about objects, events, and people in some sophisticated and surprising ways," says Lisa Feigenson, Ph.D., of the Laboratory for Child Development at Johns Hopkins University. Babies' perception of numbers is one of the most intriguing topics being reevaluated. That's right: numbers—and not just for toddlers. Feigenson explains that the foundations for mature thought, and even a rudimentary sense of numbers, are in place right from birth. So what's really going on in that growing brain? And if babies are as smart as scientists now claim, what can be done to boost these abilities?
In a 1992 study conducted by Karen Wynn, Ph.D., Professor of Psychology at Yale University, infants as young as 5 months were able to focus and follow a demonstration in which two dolls were placed behind a screen, which was then lifted to reveal either one, two, or three dolls. The study consistently found that babies looked longer at the incorrect outcomes—when the lifted screen revealed either one or three dolls—than the correct display. These findings laid the foundation for the controversial idea that children in their first year of life are able to understand abstract number and math concepts.
More current investigations show that this wasn't just a fluke, either. This study has been replicated and revised nationwide, providing similar, and in some cases, more extensive, results. In the wake of the newest research, the emerging picture of a baby's brain is considerably more complex than that of the primitive, mentally-vacant infant that prevailed for years. The short of it is that your baby probably knows more about math than you think.
According to Elizabeth M. Brannon, Ph.D., Associate Professor in the Department of Psychology and Neuroscience at Duke University, babies and adults both possess an "approximate number system." In much the same way that adults are able to look at a number of items and tell whether there are more or less items than in a different display, babies can tell the difference between different arrangements of dots—but only if they differ by enough. Infants' ability to decipher the difference between visual displays of numbers becomes more sophisticated over time, but the crux of these findings is that there is a fundamental system in place from birth.
How did the researchers draw their conclusions? By habituating babies—essentially, getting them bored with a certain number of dots in a display. Once they start to spend less time looking at this repeated visual, they're shown a different display of dots. Researchers observe their reactions, and in most cases, infants look at the new display for a much longer time, indicating that they notice a difference. Scientists view looking time as a strong, reliable indicator of a baby's expectation (or surprise) at what he sees.
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