Some infants experience unusual stress from pregnancy through the postnatal period and are especially called upon to exercise coping responses. Discusses unusual stressors, how the infant naturally copes with them, and how caregivers can provide assistance. Reviews studies on stress-relieving intervention techniques. (NH)

Reports that, even though young infants can discriminate among different facial expressions, there are individual differences in infants' expressivity and ability to produce and discriminate facial expressions. (PCB)

Reports a study of 110 newborn infants' responses to the heelstick procedure to draw blood samples, and of the responses of 40 of those infants to their first inoculations at two months of age. Discusses measures of distress; stability of reactivity across time; and individual differences and health of the infant as factors in reactivity. (NH)

Reviews research on the functioning of the hypothalamic-pituitary-adrenocortical system in normal infants. Special attention is paid to the environmental stimuli and psychological processes regulating the stress responses of this system. (NH)