Methods: The time, geometric and frequency domains of the infants' ECG will be computed during heel lancing. 150 healthy full-term infants will be evaluated in six treatment groups: breastfeeding, bottle feeding, skin-to-skin contact, lying on a table without anything, lying with a pacifier and lying while getting a glucose solution. The differences in pain response to these six treatment modalities will be assessed and compared to the infants' length of cry, and scoring of the infants' behavioral response.