A study of children across the world has revealed that babies as young as 18 months can perceive what others are thinking. The study, published in the journal Proceedings of the Royal Society B, used the false-belief test and found that babies, though not able to vocalize their thoughts, could successfully complete the task. Humans are "very good at inferring other people's mental states: their emotions, their desires and, in this case, their knowledge," said the study's author H. Clark Barrett. "So it could play an important role in cultural transmission and social learning."
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