This paper represents portions of a presentation given December 9, 1968, to the Denver Psychoanalytic Society and to the Division of Psychiatry of the University of Colorado Medical Center. (NH)

This paper was presented by the senior author at the Merrill-Palmer Institute Conference on Research and Teaching of Infant Development, February 13-15, 1969. (MH)

"The results of the present study demonstrate that 10-month-old infants will move away from their mothers into a wider environment and that the properties of the wider environment control, in part, the infant's departure. (Author)

The propensity to raise and vary the pitch of one's voice when addressing an infant or small child was investigated in a sample of 16 male and 16 female adults, half of whom were married with children and half of whom had never married and never had children. (Author/RH)

Twelve pairs of previously unacquainted 6-month-old infants were observed in the presence and absence of toys; interactive episodes beginning when an infant touched the peer or a toy held by the peer were examined. Results suggested that young peers influence each other's behavior, but the extent to which they do so depends on situational…

In three studies, 12-month-old infants were familiarized either tactually or visually with objects and were then tested for visual recognition memory using either (1) the familiar and a novel object, (2) colored pictures of the objects, or (3) outline drawings of the objects. (Author/MP)

Examines the ability of infants ranging in age from 21 to 44 hours old to discriminate among visual stimulus arrays. Infants were able to discriminate between small sets of dots (two to three dots) but not between larger sets (four to six). (Author/MP)

Holograms of faces were used to study two- and five-month-old infants' discriminations of changes in facial expression and pose when the stimulus was seen to move or to remain stationary. While no evidence was found suggesting that infants preferred the moving face, evidence indicated that motion contrasts facilitate face recognition. (Author/RH)

Describes and empirically tests three assumptions, generally taken for granted, concerning the nature of communicative interaction between infants and adults: that interaction is instrumentally oriented, that meaning is obvious and unitary, and that change has an external source. An outline for an alternative account of communicative exchanges is…

Reviews some of the principal phenomena that have been found to characterize the acquisition of word meaning during the first two years of life, and proposes a theoretical framework which can be used to interpret these phenomena. (MP)

Peer social interaction in the first year of life (8-10 months) was examined with regard to (1) the content of the interaction and (2) the effects of partner familiarity on the interaction. Results show that familiarization positively affects peer social interactions. (Author/MP)

Research is reviewed on interaction between fathers and their handicapped infants, and approaches are suggested to enhance the interaction including opportunity to share concerns with other fathers. (CL)

The meaning of mothers' perceptions of their infants' temperamental "difficultness" was explored in three ways. Subjective ratings were elicited from mothers who listened to the cries of four- to six-month-old infants who were not their own. Acoustic properties of the cries of the infants were measured and effects of a variety of…

Preliminary data indicates that parents involved in home-based relationship-focused intervention for infants with developmental delay showed greater responsiveness to the infant, participated in more frequent reciprocal activities, showed more organized involvement with the child, and tended to note positive changes in the infant's responsiveness…