| Abstract: | Lateral preferences in parents' cradling and holding of their infants were assessed in a longitudinal study commencing 1–3 days after birth and ending at 18 months. Right-handed parents showed a consistent left-side preference, which declined slightly as the infants grew older. Left-handed mothers showed an initial left-side preference and then more variable holding behavior, including right-side preferences, in some conditions. No relationship between the parents' holding behavior and two measures of infant head posture was found. It is suggested that parental side-holding preferences and infant head orientation biases are components of a biobehavioral system designed to enhance the organization of the caregiver-infant relationship. |
