In two studies, photographs of facial expressions of normal and Down's syndrome infants were viewed by mothers who recognized discrete emotions and reported regularities in caregiving associated with these emotions. Stimulating interactions were reported more frequently for high intensity expressions than for low intensity expressions. While these regularities held for both groups of infants, high intensity expressions were less frequent in the Down's group. The biological mothers of Down's infants seemingly compensated by reporting more stimulating interventions in response to their infants' low intensity expressions. Mothers who were unfamiliar with both groups of infants did not evidence this compensatory adjustment.