Even if your baby is very smart, he probably can’t read your mind — he might not even know you have one. New research suggests that infants as young as 7 months are sensitive to the perspectives of others. But more work is needed to demonstrate whether babies fully grasp that others have their own beliefs.
The new study, published December 24 in Science, adds to a large body of research exploring when humans first develop the capacity to infer the intentions and perspectives of others, a cognitive ability termed “theory of mind.” Scientists have long debated whether this is an innate ability or one that is arrived at as a young brain gathers information and experience.
Previous research suggested that kids can’t distinguish between what other people believe is going on from what is actually going on until the age of 4 or 5. This developmental milestone was explored in classic experiments where children see a boy, Maxie, put chocolate into a kitchen drawer. Maxie then leaves, and someone else comes in and moves the chocolate to a cupboard. Then Maxie comes back inside and wants his chocolate. The children are asked where Maxie will go: the drawer, where he thinks the chocolate is, or the cupboard, where it really is.