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A recent study suggests that humans begin to display altruistic behavior from a much younger age than previously thought. A group of researchers elucidated through experimentation that even infants are capable of acts of selflessness.In a study carried upon 100 19-month-olds by the University of Washington's Institute for Learning & Brain Sciences (I-LABS), the researchers found that children, even when hungry, gave a tasty snack to a stranger in need. The findings not only show that infants engage in altruistic behavior, but also suggest that early social experiences can shape altruism.The study is published online on Feb 4 in Scientific Reports, an open-access journal from the Nature Publishing Group."We think altruism is important to study because it is one of the most distinctive aspects of being human. It is an important part of the moral fabric of society," said Rodolfo Cortes Barragan, a postdoctoral researcher at I-LABS and lead author on the study."We adults help each other when we see another in need and we do this even if there is a cost to the self. So we tested the roots of this in infants."I-LABS researchers wanted to test whether human infants were able to act beyond self-interest when faced with one of the most fundamental biological needs: food.For this study, researchers chose kid-friendly fruits -- including bananas, blueberries, and grapes -- and set up an interaction between child and researcher. The goal was to determine whether the child would -- without encouragement, verbal instruction or reinforcement -- spontaneously give an appealing food to an unfamiliar person.In the experiment, the child and the adult researcher faced each other across a table, and the researcher showed the child a piece of fruit. What happened next was determined by whether the child was in the control group or the test group.In the control group, the researcher gently tossed the piece of fruit onto a tray on the floor beyond reach but within the child's reach. The researcher showed no expression and made no attempt to retrieve the fruit.In the test group, the researcher pretended to accidentally drop the fruit onto the tray, then reach for it unsuccessfully.That reaching effort -- the adult's apparent desire for the food -- seemed to trigger a helping response in the children, researchers said: More than half the children in the test group picked up the fruit and gave it to the adult, compared to 4% of children in the control group.In a second experiment with a different sample of children, parents were asked to bring their child just before their scheduled snack or mealtime -- when the child was likely to be hungry. Researchers reasoned that this would raise the "cost to self" that defines altruism. The control and test group scenarios were repeated, but with children who were now more motivated to take the fruit for themselves.The results mirrored those from the previous study. Fully 37% of the test group offered the fruit to the researcher while none of the children in the control group did so."The infants in this second study looked longingly at the fruit, and then they gave it away!" said Andrew Meltzoff, who is co-director of I-LABS and holds the Job and Gertrud Tamaki Endowed Chair in psychology.The research team also analyzed whether children offered fruit on the first trial of the experiment or got better during the process, for example, and whether children from particular types of family environments helped more.The researchers found that infants helped just as well on the very first trial of the experiment as on later trials, which Barragan said is informative because it shows that the children did not have to learn to help during the study.The researchers also found that children with siblings and from certain cultural backgrounds were especially likely to help the adult. These results fit well with previous studies with adults that show positive influences of having a cultural background that emphasizes "interdependence".( With inputs from ANI )

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