Emotional expressions during early infant – father conversations

The present longitudinal and naturalistic study aimed to investigate fathers’ and infants’ facial expressions of emotions during paternal infant-directed speech. The microanalysis of infant and paternal facial expressions of emotion in the course of the naturalistic interactions of 11 infant – father dyads, from the 2nd to the 6th month, provided evidence that: (a) fathers and infants match their emotional states and attune their emotional intensity; (b) infants seem to match paternal facial emotional expressions more than vice versa; (c) the prevailing emotional states of each partner remain constant in the beginning and at the end of speech; and (d) the developmental trajectories of infant interest and paternal pleasure change significantly across the age range of 2 – 6 months and they seem to follow similar courses. These results are interpreted within the frame of the theory of innate intersubjectivity.