age two or three, by inference, deduction, and logical reasoning. But does this mean that small babies are unaware of minds? That they see other people simply as another (rather dynamic and noisy) kind of object? This is a common view in developmental psychology. Yet, as this book explains, there is compelling evidence that babies in the first year of life can tease, pretend, feel self-conscious, and joke with people. Using observations from infants’ everyday interactions with their families, Vasudevi Reddy argues that such early emotional engagements show infants’ growing awareness of other people’s attention, expectations, and intentions. Reddy deals with the persistent problem of “other minds” by proposing a “second-person” solution: we know other minds if we can respond to them. And we respond most richly in engagement with them. She challenges psychology’s traditional “detached” stance toward understanding people, arguing that the most fundamental way of knowing minds—both for babies and for adults—is through engagement with them. According to this argument the starting point for understanding other minds is not isolation and ignorance but emotional relation.

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