Spontaneously Produced Facial Expressions in Infants and Children
This chapter explores the question of whether infants and children produce prototypic emotional facial expressions in emotion-eliciting situations. Investigations of both infants and children are described. These include a natural observation study of a single infant during routine caregiving activities, a systematic experiment in which infants were presented with elicitors of fear and anger, a seminaturalistic experiment during which mothers and children discuss a topic of disagreement, and a study of children’s responses to a fear stimulus presented in the context of an Internet prank. Together these studies show that prototypic expressions are sometimes produced when it is unlikely that the corresponding emotion is experienced and often are not produced when the corresponding emotional experience seems likely. Overall findings suggest that the relationship between emotion and facial expression is more complex than portrayed within contemporary discrete emotion theories.