Results showed that 2- and 3-dimensional forms affected 4- and 8-week-old infant visual behavior differently. (Author/JMB)

A classification and description of cry types stimulated by different internal sources--hunger, pain, illness and alarm. Various features of each type were distinguished by spectrographic analysis. Pain cries seemed to be the basic type from which other types evolve. Comparisons with other studies were made. (AMH)

Results from this study of 110 low-risk, middle-class infants showed that a significantly greater proportion of infants whose mothers worked full-time outside the home were assigned to the category "insecure-avoidant" than infants whose mothers remained in the home throughout their children's first year of life. (PCB)

Changes in children's categorization behavior between 15 and 21 months of age and the relation of these changes to developments in language, object permanence, and means-end understanding are reported. (PCB)

To document movement patterns and to examine developmental interrelationships, the ontogeny of rooting, lip, lateral tongue, mouth opening, biting, and Babkin reflexes and the development of emerging chewing behaviors were observed in two normal infants over a period from 1 week to 35 weeks of age. (Author/RH)

Finds that seven-month-old infants are sensitive to pictorial interposition whereas five-month-old infants are not. Suggests that sensitivity to pictorial depth information first appears between five and seven months of age. (Author)

The concurrent and predictive relations of sensorimotor behavior and play to language in the second year were assessed among 19 preterm and 20 full-term infants tested at 13 1/2 and 22 months of age. Numerous associations between play and language were identified; sensorimotor behavior and language in the same age period were relatively loosely…

Thirty-two three-month-old infants participated in two experiments showing color videotapes of facial stimuli in a paired comparison format. Suggests that contrast in effect of eye contact availability and rather subtle stimulus motion (blinking) implies that three-month-old infants are comparatively insensitive to being the object of another's…

An account of studies conducted by author and others concerning Piaget's view of object concept development in infants. (HS)

Compares infants' performance based on chronological age as opposed to conceptual age. The Bayley Mental Scales were used to test 20 premature experimental infants and 20 full-term control infants. Results demonstrated that an infant's performance must be judged on the basis of conceptual rather than chronological age. (MS)

Summary scores for behaviors rated on Bayley's Infant Behavior Record were obtained by summing sequential ratings for same-sex twins participating in a longitudinal study. Composite scores were calculated for two behavioral clusters - one composed of behaviors related to primary cognitions and the other of behaviors related to extraversion.…

Noting the difficulty that many parents have finding activities to fit the busy life, budget, and energy levels of the average parent and the attention span and abilities of the typical infant and toddler, this book is designed as a reference book for parents and others looking for ways to entertain, educate, and enjoy a young child during the…

The formation of attachments is an important phenomenon occurring in the realm of socioemotional development. This study examined the impact of infant massage on infants' subsequent attachment security. Fifty-seven mother-infant dyads (48 dyads from Head Start, 9 from the community at large) were randomly assigned to a treatment or control group…