Shared pleasure in early mother-infant interaction: predicting lower levels of emotional and behavioral problems in the child and protecting against the influence of parental psychopathology.

Shared pleasure (SP) was analyzed in fifty-eight 2-month-old infants and their mothers in face-to-face interaction (T1, at 2 months). The association of SP with child's emotional and behavioral outcome at 2 years (T2) was examined. SP as a possible protecting factor in the presence of parental psychopathology also was studied. Mean duration of SP moments (SP-MD) was related to subsequent socioemotional outcome of the child: Infants of dyads with longer SP-MD showed fewer internalizing and externalizing problems 2 years later. In hierarchical linear regressions, SP-MD uniquely and significantly contributed to internalizing problems after adjusting for infant and maternal factors and mother's interactive behavior. SP protected the child against the influence of parental psychopathology. Father's mental health problems during the follow-up increased the child's risk for higher externalizing and internalizing problems, but only among children with short SP-MD at T1. Internalizing symptoms at T2 increased when moving from the category "no mental health problems" to "mental health problems in one parent" and further to "mental health problems in both parents," but this increase was found only among those with short SP-MD at T1. SP in parent-child interaction is an important feature that fosters positive psychological development and moderates the health effects of other risks such as parental psychopathology.