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Gaining advantages from childhood experience |
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From EurekAlert! - Breaking News: A recent study by Dr. Akaysha Tang's research team from the University of New Mexico Psychology Department (http://atlab.unm.edu) and collaborators at Rockefeller University examined how early life experience influences social skills and ability to handle stressful situations using a rat model. In this study, Dr. Tang and colleagues examined whether rats that experienced greater novelty by spending three minutes a day away from their familiar home environment during infancy had a greater ability to compete against other rats for exclusive access to chocolate reward compared to their siblings that stayed in the home environment during infancy. Another question asked by Dr. Tang and colleagues was whether the differences between siblings depended on the care received from their mothers during infancy. They measured how much mother rats licked and groomed their pups after the novelty exposure procedure and how consistently they provided this care from day to day. This led to the surprising finding that the novelty-exposed rats with the most adaptive stress responses had mothers that gave highly consistent, but lesser amounts, of care. In translating possible significance of these findings to the human species, although it is sometimes assumed that the overall amount of care from the mother is one of the most important influences on her children's development, this study by Dr. Tang and colleagues provides a different view---that the consistency of maternal care may be more important than the amount of maternal care and that other sources of influences, such as environmental novelty can play an important role in shaping a child's development.
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