Infants as young as 2 months can integrate audio and visual aspects of speech articulation. A shift of attention from the eyes towards the mouth of talking faces occurs around 6 months of age in monolingual infants. However, it is unknown whether this pattern of attention during audiovisual speech processing is influenced by speech and language…

Faces convey important information about the social environment, and even very young infants are preferentially attentive to face-like over non-face stimuli. Eye-tracking studies have allowed researchers to examine which features of faces infants find most salient across development, and the present study examined scanning of familiar (i.e.,…

This experiment investigated social referencing as a form of discriminative learning in which maternal facial expressions signaled the consequences of the infant's behavior in an ambiguous context. Eleven 4- and 5-month-old infants and their mothers participated in a discrimination-training procedure using an ABAB design. Different consequences…

We examined two aspects of temperamental approach in early infancy, positive reactivity and anger, and their unique and combined influences on maternal reports of child surgency and attention focusing at 4 years of age. One hundred and fourteen infants were observed for their positive reactions to novel stimuli at 4 months, and their anger…

Despite hundreds of studies describing infants' visual exploration of experimental stimuli, researchers know little about where infants look during everyday interactions. The current study describes the first method for studying visual behavior during natural interactions in mobile infants. Six 14-month-old infants wore a head-mounted eye-tracker…

Developmental studies of face processing have revealed age-related changes in how infants allocate neurophysiological resources to the face of a caregiver and an unfamiliar adult. We hypothesize that developmental changes in how infants interact with their caregiver are related to the changes in brain response. We studied 6-month-olds because this…

An experiment was designed to demonstrate that infants as young as 3 months of age would show face/voice coordination in matched and mismatched conditions if exposure trials were extended to 1 minute in duration. A total of 16 infants participated in each of four experimental conditions. Conditions were (1) mother present with mother's voice…

Confirms the existence of a right-hemisphere advantage in the process of discriminating between face stimuli. The advantage was weaker in females than in males. No hemispheric transfer of learning was observed. Subjects were 18 infants of 42 weeks who were presented with an operant conditioning situation in which they discriminated between their…

Three groups of 12-month-old infants (10 deaf infants with hearing parents, 10 deaf infants with deaf parents, and 10 hearing infants with hearing parents) were videotaped during free play with mothers. Infant attention state was coded, identifying periods as: (1) unengaged, (2) onlooking, (3) object-attend, (4) person-attend, (5) supported joint…

This paper explores the effects of infant predominant state of arousal upon very early mother-infant interaction, through observation of a group of 20 healthy 3-day-old nursery roommates and their mothers during hospital feeding sessions. In an experimental procedure involving a modified time-sampling technique, two observers simultaneously…

This paper reports an exploratory investigation of motor patterns characteristic of maternal gameplaying behavior conducted with forty-eight 4-, 6- and 8-month-old infants and their mothers. Videotapes of 6-minute laboratory mother-infant play sessions were segmented into maternal games which were categorized according to the type and complexity…

This paper discusses a series of three studies investigating the influence of infants' characteristics and signaling behavior on parents. Videotapes of either smiling/cooing/gurgling or crying infants were used to elicit parents' physiological and affective responses. Measured physiological responses included skin conductance, heart rate, and…

Compares activities and interactions of Japanese and American mothers and their five-month-old infants in their natural home settings from a macroanalytic viewpoint in terms of mothers' verbal and visual stimulation of infants and infants' visual and tactual exploration and vocalization. (Author/BB)

Twenty infants, 12 weeks of age, were subjects in an experiment to test the effects of maternal behavior on their perceptual-cognitive development. Each mother and child were observed in a controlled naturalistic setting, every 10 seconds their various behaviors were recorded, and then the mother was interviewed. During an experimental session the…

The purpose of the observational system presented here is to record the behavioral interactions between infant and mother, focusing on the sequential and contextual features of the social communication patterns accessible through direct home observation of mothers and their 3- to 4-month-old infants. The present system of continuous data recording…