Your Child Likely to Share His Toy? Maybe, Say Experts

Did you know there are places in our children's brains that tell whether they will be generous or not?

According to a new study, University of Chicago developmental neuroscientists have found specific brain markers that predict generosity in children. Those neural markers appear to be linked to both social and moral evaluation processes, reports.

Although young children are natural helpers, their perspective on sharing resources tends to be selfish.  I remember when my son was little, I don't remember too many times when he gave away his prized Lego figures to his friends, or vice versa. More likely, it was snatch and grab, and then screaming. 

"We know that generosity in children increases as they get older,” said study co-author Jean Decety, the Irving B. Harris Professor of Psychology and Psychiatry at the university.   “The results of this study demonstrate that children exhibit both distinct early automatic and later more controlled patterns of neural responses when viewing scenarios showing helping and harmful behaviors. It’s that later more controlled neural response that is predictive of generosity.”

 According to, the study included recording brain waves by EEG and eye tracking of 57 children, ages three to five, while they viewed short animations depicting pro-social and antisocial behaviors of cartoon-like characters helping or hurting each other.

Following that testing, the children played a modified version of a scenario called the “dictator game.” The children were given ten stickers and were told that the stickers were theirs to keep. They were then asked if they wanted to share any of their stickers with an anonymous child who was to come to the lab later that day.

What do you think happened?

The children had two boxes, one for themselves and one for the anonymous child. In an effort to prevent bias, the experimenter turned around while the child decided whether or how much to share. On average, the children shared fewer than two stickers (1.78 out of 10) with the anonymous child. There was no significant difference in sharing behavior by gender or age. The authors also found that the nature of the animations the children watched at the outset could influence the children’s likelihood of behaving in a generous way.

The developmental scientists found evidence from the EEG that the children exhibited early automatic responses to morally laden stimuli (the scenarios) and then reappraised the same stimuli in a more controlled manner, building to produce implicit moral evaluations.

The study shows how young children’s brains process moral situations presented in these scenarios and the direct link to actual pro-social behavior in the act of generosity by sharing the stickers.

“These findings provide an interesting idea that by encouraging children to reflect upon the moral behavior of others, we may be able to foster sharing and generosity in them," Decety said, adding that these findings show that, contrary to several predominant theories of morality, while gut reactions to the behavior of others do exist, they are not associated with one’s own moral behavior, as in how generous the children were with their stickers.


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