Infancy and early childhood sleep-wake behaviours from current and retrospective parental reports were used to explore the relationship between sleeping arrangements and parent-child nighttime interactions at both time points. Children (N = 45) from educated, middle-class families, mostly breastfed in infancy, composed a convenience sample that…

Purpose: This investigation aimed to examine the development of tongue-jaw coordination during speech from childhood to adolescence. Method: Electromagnetic articulography was used to track tongue and jaw motion in 48 children and adults (aged 6-38 years) during productions of /t/ and /k/ embedded in sentences. Results: The coordinative…

Objective: Methamphetamine use among pregnant women is an increasing problem in the United States. Effects of methamphetamine use during pregnancy on fetal growth have not been reported in large, prospective studies. We examined the neonatal growth effects of prenatal methamphetamine exposure in the multicenter, longitudinal Infant Development,…

There have been few investigations of the effects of very immature preterm birth on specific linguistic competencies and phonological working memory at preschool age. Study 1 aimed to investigate early grammatical abilities in very immature healthy preterms, taking into account their cognitive development and biological and social factors. The…

Twelve- and 14-month-old infants' ability to represent another person's visual perspective (Level-1 visual perspective taking) was studied in a looking-time paradigm. Fourteen-month-olds looked longer at a person reaching for and grasping a new object when the old goal-object was visible than when it was invisible to the person (but visible to the…

Young infants tend to look longer at physical events that have unexpected outcomes than those that have expected outcomes, suggesting that they have knowledge of physical principles such as numerosity and occlusion (Baillargeon & Graber, 1987; Wynn, 1992). Although infants are typically tested in the presence of a caregiver, the social component…

During the second year of life, infants exhibit a "video deficit effect." That is, they learn significantly less from a televised demonstration than they learn from a live demonstration. We predicted that repeated exposure to televised demonstrations would increase imitation from television, thereby reducing the video deficit effect. Independent…

This paper considers the area of perinatal death by focusing on the mother's experience. An argument is made for questioning whether mothers attempt to replace a dead infant. It is suggested instead that they long to mother their lost baby and as a result their new infant is mothered in the shadow of the dead baby. The term "penumbra baby" is…

Two experiments investigated the proclivity of 14-month-old infants (a) to altruistically help others toward individual goals, and (b) to cooperate toward a shared goal. The infants helped another person by handing over objects the other person was unsuccessfully reaching for, but did not help reliably in situations involving more complex goals.…

Recent deferred imitation experiments are shedding new light onto the development of declarative memory during early infancy and revealing interesting new facets, for example, that infants process novel information on more than one level. In the current study with 13-month-old infants we examined relational information processing of novel,…

This article provides general guidelines for home visitors who work with teenage parents and their babies to explore their own thoughts and feelings in relation to the young parents with whom they work and to develop a receptive posture in working with these clients. The authors first guide the reader through a series of questions to identify the…

Four experiments examined whether infants' use of task-relevant information in an action task could be facilitated by visual experience in the laboratory. Twelve- but not 9-month-old infants spontaneously used height information and chose an appropriate (taller) cover in search of a hidden tall toy. After watching examples of covering events in a…

Too many parents of children with special healthcare needs come upon dental care for their child out of necessity or urgency. In order to make the relationship most beneficial, the preferred way is to establish a Dental Home during the child's infancy. The Dental Home is the oral health corollary of the Medical Home concept that the American…

We investigated infants' sensitivity to spatiotemporal structure. In Experiment 1, circles appeared in a statistically defined spatial pattern. At test 11-month-olds, but not 8-month-olds, looked longer at a novel spatial sequence. Experiment 2 presented different color/shape stimuli, but only the location sequence was violated during test;…

J. Brooks-Gunn, W. J. Han, and J. Waldfogel (2002) and the National Institute of Child Health and Human Development Early Child Care Research Network (ECCRN; 2000b) came to different conclusions about the effects of maternal employment--although they were addressing similar questions using the same data set. Brooks-Gunn et al. concluded that…