Reports a short-term longitudinal study of children at 13 months and at 18 months which supports the belief that patterns of emotion reflect early, persistent individual differences; they also reflect a developmental trend toward increasing complexity of emotional responses. (Author/NH)

Four-month-old rhesus monkeys were removed from their social group under three different conditions of perceptual isolation from their mothers and peers. Infant behavior was recorded and blood samples were obtained for analysis of plasma cortisol. Infants never showed signs of depression; their responses following separation were seen as attempts…

Capacity of infant monkeys to mount an antibody response to viral challenge was evaluated after monkeys' removal from their mothers in several social and physical environments. Results indicated that trauma of separation was reduced when infants were familiar with the separation environment or familiar social companions were available. (PCB)

Parents' reactions to brief separations from their infant children were investigated in this study. Participants included a total of 16 female and 16 male 10-month-old infants, together with their mothers and fathers. From the pool of 64 parents, one parent in each family was randomly chosen to serve as subject. The selection of subjects was made…

Reports relationship between asymmetries in frontal-brain electrical activity and individual differences in affective response in 35 ten-month-old females. Stranger-approach, mother-approach, and maternal-separation experiences were presented while an electroencephalogram (EEG) from scalp regions was recorded and facial and other behavioral…

In his article "The 'Effects' of Infant Day Care Reconsidered," Jay Belsky (see PS 017 108) concludes that maternal employment puts infants at risk for developing emotional insecurity and social maladjustment. After a review of Belsky's and other research, a different conclusion is offered in this paper. It is agreed that infants whose…

Distress in response to brief maternal separations was examined in a sample of 93 predominantly home-reared infants using the Ainsworth strange situation paradigm. At 18 months, the age when separation protests begin to decline, securely attached infants are better able than anxiously attached infants to tolerate maternal separations. (Author/RH)

Examines the effect of an unfamiliar peer in a situation requiring a subject's separation from mother in order to play with attractive toys. Observation of 20 children 18 months old and 20 children 30 months old revealed that peer presence facilitated initial separation for both ages, but that age differences in subsequent behaviors existed. (CB)

Compares a group of well-educated mothers who preferred to be home caring for their infants with a group who preferred to be employed to determine how employment preference affects the development of maternal separation anxiety. (HOD)

Compares the separation distress of 26 19-month-old Downs Syndrome infants in the Strange Situation with that of 43 normal infants who were observed at 12 1/2 and 19 1/2 months to assess whether Downs Syndrome infants responded more similarly to cognitively comparable normals than to age-comparable normals. (HOD)