ABSTRACT
Emotional expressions serve an integral role in communication. Facial expressions communicate to others particular feeling states. These communicated feeling states, in turn, influence others to respond. For example, mothers are motivated to respond differentially to positive versus negative facial expressions of their infants (Huebner & Izard, 1988; Malatesta & Haviland, 1982). Even children modify their behavior in response to other's expressions (Izard & Malatesta, 1987). Thus, facial expressions of emotion can have a potent effect on the behavior of others.
