Predicting the development of infant emotionality from maternal characteristics.

Few studies have examined the associations between environmental conditions and developing infant emotionality or the differential susceptibility to those conditions. The present longitudinal study aims to make a contribution to close that gap. We analyzed whether positive emotionality, negative emotionality/irritability, and withdrawal/fear at the end of the first year of life are predictable from preceding caregiver's depression/anxiety, social support, and sensitivity in the interaction with the infant while controlling for antecedent states of emotionality. Furthermore, the question of whether associations between maternal characteristics and subsequent fear are stronger in the subgroup of infants high in irritability as opposed to those who are low in irritability was investigated. Subjects were 101 healthy firstborn infants and their primary caregivers. Assessments were conducted at infant ages of 4, 8, and 12 months. Depression, anxiety, and the social support of the caregiver were assessed by questionnaire. Sensitivity in the caregiver-infant interaction was assessed by behavior observations within the scope of home visits. Temperament characteristics were observed in standardized laboratory episodes. Whereas negative emotionality and withdrawal/fear were significantly predictable from the maternal characteristics, no predictability could be shown for developing positive emotionality. There were indications of a stronger association between the maternal characteristics and developing withdrawal/fear in irritable infants.