Identifying the referent of novel words is a complex process that young children do with relative ease. When given multiple objects along with a novel word, children select the most novel item, sometimes retaining the word-referent link. Prior work is inconsistent, however, on the role of object novelty. Two experiments examine 18-month-old…

A broad range of studies demonstrate that sleep has a facilitating role in memory consolidation (see Rasch & Born, 2013). Whether sleep-dependent memory consolidation is also apparent in infants in their first few months of life has not been investigated. We demonstrate that 3-month-old infants only remember a cartoon face approximately…

Infants fail to represent quantities of non-cohesive substances in paradigms where they succeed with solid objects. Some investigators have interpreted these results as evidence that infants do not yet have representations for substances. More recent research, however, shows that 5-month-old infants expect objects and substances to behave and…

The study evaluated the relationship between maternal anxiety, depression and parenting stress, and maternal mind-mindedness, styles of interaction, and mother-infant emotion regulation. At infant age 3 months, EPDS, STAI, and PSI-SF were administered to 73 mothers to respectively assess depression, anxiety, and parenting stress; mother-infant…

Community health workers possess valuable insight into the experiences of South Africa's children and caregivers. However, their knowledge is often overlooked in efforts to understand local realities, inform interventions, and develop relevant policies. This study aimed to explore community health workers' perspectives of the first 1000 days of…

An expansive view of care is vital to understanding children's sense-making of their care experiences in early childhood education. Yet, scant literature explores how toddlers enact and express understandings of care in their play with objects and others. This article identifies play situations where toddlers enact and express understandings, and…

Purpose: This scoping review considers the acoustic features of a clear speech register directed to nonnative listeners known as foreigner-directed speech (FDS). We identify vowel hyperarticulation and low speech rate as the most representative acoustic features of FDS; other features, including wide pitch range and high intensity, are still under…

Fifty-one 23-to-55-month-old-infants faced two apparatuses that required the use of a rigid (box apparatus) or flexible (hose apparatus) stick-like tool to retrieve a toy stuck inside. Before attempting the extraction, however, they had to pick the only one tool (of three) on display that had the appropriate rigidity/flexibility to be effective.…

Family routines provide young children with predictable, repeatable, and functional contexts for learning about the world. Participating in family routines is a critical pathway by which all children learn. While the use of family routines in caregiver-implemented interventions (CIIs) is supported by theories, research, and recommended practices,…

This study investigates the influence of semantic maturation on early lexical development by examining the impact of contextual diversity--known to influence semantic development--on word promotion from receptive to productive vocabularies (i.e., comprehension-expression gap). Study 1 compares the vocabularies of 3685 American-English-speaking…

Non-tone language infants' native language recognition is based first on supra-segmental then segmental cues, but this trajectory is unknown for tone-language infants. This study investigated non-tone (English) and tone (Thai) language 6- to 10-month-old infants' preference for English vs. Thai one-syllable words (containing segmental and tone…

Research concerning temperament in children and adults with autism spectrum disorder (ASD) has suggested a consistent profile of low positive affect, high negative affect, and low regulation (Visser et al., 2016). One area receiving less attention is individual differences among children diagnosed with ASD. The primary objective of this study was…

Maternal input addressed to children after an early hospitalization (EH) was longitudinally compared to maternal input directed to typically developing children (TD), at 6, 9, 12, 18 and 24 months of age. The data were analyzed with the CHILDES tools for (a) word-tokens (b) word-types (c) Mean Length of Utterances (MLU) and (d) questions in which…

Children under five are expelled at high rates from early learning settings, yet little research discusses the relationship between program quality and expulsion. This study examined the relationship between program quality (accreditation, quality rating system participation, child:teacher ratios, suggesting programs are not a match, administrator…

Early interaction is a dynamic, emotional process in which infants influence and are influ­enced by caregivers and peers. This chapter reviews new developments in behavior imag­ing--objective quantification of human action--and computational approaches to the study of early emotional interaction and development. Advances in the automated…