Giving Cash to Low-Income Mothers Linked to Increased Brain Activity in Their Babies, Study Suggests

New research suggests giving extra cash to low-income mothers can change their infants' brain development. Time reports: Brain measurements at age 1 showed faster activity in key brain regions in infants whose low-income families received $300-plus monthly for a year, compared with those who got $20 each month, U.S. researchers reported Monday. The same type of brain activity has been linked in older children to learning skills and other development, although it's unclear whether the differences found will persist or influence the infants' future. The researchers are investigating whether the payments led to better nutrition, less parent stress or other benefits to the infants. There were no restrictions on how the money was spent.

The results suggest reducing poverty can directly affect infant brain development, said senior author, Dr. Kimberly Noble, a neuroscience and education professor at Teachers College, Columbia University. 'The brain changes speak to the remarkable malleability of the brain, especially early in childhood,' she said. While the researchers can't rule out that differences seen in total brain activity in both groups were due to chance, they did find meaningful differences in the frontal region, linked with learning and thinking skills. Higher-frequency activity was about 20% greater in infants whose families received the larger payments. The study has been published in the journal Proceedings of the National Academy of Sciences.

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