Within and Across Language Predictors of Word Learning Processes in Dual Language Learners.

This study investigated the relation between Dual Language Learners' (N = 90) vocabulary and grammar comprehension and word learning processes in preschool (aged 3-through-5 years). Of interest was whether: (a) performance in Spanish correlated with performance in English within each domain; and (b) comprehension predicted novel word learning within and across languages. Dual-language experience was evaluated as a potential moderator. Hierarchical linear modeling revealed stronger predictive associations within each language than across languages. Across languages, results varied by experience and domain. Structural sensitivity theory suggests exposure to two languages heightens awareness of parameters along which languages vary and provides a framework for interpreting complex associations within and across languages. Knowledge from one language may influence learning in both.

Young Mandarin learners use function words to distinguish between nouns and verbs.

Mandarin requires neither determiners nor morphological inflections, which casts doubt on Mandarin-speaking children's ability to use function words as a syntactic bootstrapping tool to identify the form class of a new word. This study examined 3- and 5-year-old Mandarin learners' ability to use function words to interpret new words as either nouns or verbs in the absence of the requirement for determiners and inflections in the ambient language. In Experiment 1, 3-, and 5-year-old Mandarin-speaking children were exposed to eight novel words embedded in sentence frames differing only in the form class markers used. The 5-year-olds interpreted the novel words as either nouns or verbs depending on the form class markers they heard, while the 3-year-olds learned only the nouns. Experiment 2 confirmed that the 5-year-olds understood the function of the verb-marker. Thus, Mandarin-speaking children can use function words to distinguish nouns versus verbs, and this ability appears between three and five years of age.

Finding events in a continuous world: A developmental account.

Event segmentation is a fundamental process of human cognition that organizes the continuous flux of activity into discrete, hierarchical units. The mechanism of event segmentation in infants seems to parallel the mechanism studied in adults, which centers on action predictability. Statistical learning appears to bootstrap infants' event segmentation by generating action predictions without relying on prior knowledge. Infants' first-hand experiences with goal-directed actions further enhance their prediction of others' actions. Scaffolds for event segmentation are available in the input, with caregivers providing redundant cues to event boundaries through the use of motionese and acoustic packaging. Research points to the importance of developing event segmentation skills for development in other areas of cognition, including memory, social competence, and language, though more work is needed to capture the directionality of effects. Although event segmentation is a relatively new area of focus in cognition, this process illuminates how children make sense of an ever-changing world.

"Oh, the Places You'll Go" by Bringing Developmental Science Into the World!

Urie Bronfenbrenner and Ernest Boyer argued for leaving the laboratory to conduct rigorous developmental research in the real world where children are found-in the places they go. Contributions to this special issue meet Bronfenbrenner and Boyer's call while at the same time recognizing the continued importance of laboratory research. These articles range from a review of research on the arts to a language intervention in Senegal to large-scale dissemination and intervention projects designed to communicate the best developmental science to families, public agencies, and schools. Together these articles illustrate how we can study development in the world and enrich our work on the factors that promote development. Taking this path presents us with a set of additional hurdles to be addressed, such as how to communicate with the public and how to scale up our interventions in the face of diversity along many dimensions.

Skype me! Socially contingent interactions help toddlers learn language.

Language learning takes place in the context of social interactions, yet the mechanisms that render social interactions useful for learning language remain unclear. This study focuses on whether social contingency might support word learning. Toddlers aged 24-30 months (N = 36) were exposed to novel verbs in one of three conditions: live interaction training, socially contingent video training over video chat, and noncontingent video training (yoked video). Results suggest that children only learned novel verbs in socially contingent interactions (live interactions and video chat). This study highlights the importance of social contingency in interactions for language learning and informs the literature on learning through screen media as the first study to examine word learning through video chat technology.

Deconstructing building blocks: preschoolers' spatial assembly performance relates to early mathematical skills.

This study focuses on three main goals: First, 3-year-olds' spatial assembly skills are probed using interlocking block constructions (N = 102). A detailed scoring scheme provides insight into early spatial processing and offers information beyond a basic accuracy score. Second, the relation of spatial assembly to early mathematical skills was evaluated. Spatial skill independently predicted a significant amount of the variability in concurrent mathematical performance. Finally, the relation between spatial assembly skill and socioeconomic status (SES), gender, and parent-reported spatial language was examined. While children's performance did not differ by gender, lower SES children were already lagging behind higher SES children in block assembly. Furthermore, lower SES parents reported using significantly fewer spatial words with their children.

Forces and motion: how young children understand causal events.

How do children evaluate complex causal events? This study investigates preschoolers' representation of force dynamics in causal scenes, asking whether (a) children understand how single and dual forces impact an object's movement and (b) this understanding varies across cause types (Cause, Enable, Prevent). Three-and-a half- to 5.5-year-olds (n = 60) played a board game in which they were asked to predict the endpoint of a ball being acted upon by one or two forces. Children mostly understood the interactions of forces underlying each type of cause; only 5.5-year-olds could integrate two contradictory forces. Children perceive force interactions underlying causal events, but some concepts might not be fully understood until later in childhood. This study provides a new way of thinking about causal relations.

Taking shape: supporting preschoolers' acquisition of geometric knowledge through guided play.

Shape knowledge, a key aspect of school readiness, is part of early mathematical learning. Variations in how children are exposed to shapes may affect the pace of their learning and the nature of their shape knowledge. Building on evidence suggesting that child-centered, playful learning programs facilitate learning more than other methods, 4- to 5-year-old children (N = 70) were taught the properties of four geometric shapes using guided play, free play, or didactic instruction. Results revealed that children taught shapes in the guided play condition showed improved shape knowledge compared to the other groups, an effect that was still evident after 1 week. Findings suggest that scaffolding techniques that heighten engagement, direct exploration, and facilitate "sense-making," such as guided play, undergird shape learning.

Preverbal infants' attention to manner and path: foundations for learning relational terms.

In the world, the manners and paths of motion events take place together, but in language, these features are expressed separately. How do infants learn to process motion events in linguistically appropriate ways? Forty-six English-learning 7- to 9-month-olds were habituated to a motion event in which a character performed both a manner and a path, and then tested on events that changed the manner, path, both, or neither. Infants detected each type of change, but only the girls showed evidence of processing manner and path as independent features. This gender difference provides clues about the universal development of manner and path concepts from more basic perceptual skills. Results have implications for how representations of linguistically relevant semantic elements develop conceptually.

Infant categorization of path relations during dynamic events.

Fundamental to amassing a lexicon of relational terms (i.e., verbs, prepositions) is the ability to abstract and categorize spatial relations such as a figure (e.g., boy) moving along a path (e.g., around the barn). Three studies examine how infants learn to categorize path over changes in manner, or how an action is performed (e.g., running vs. crawling). Experiment 1 (n = 60) finds that 10- to 12-month-old English-learning infants categorize a figure's path. In Experiment 2 (n = 27) categorization is disrupted when the ground object is removed, suggesting the relation between figure and ground defines the path. Experiment 3 (n = 24) shows that language may be a mechanism guiding category formation. These studies suggest that English-learning infants can categorize path, a component lexicalized in the world's languages.

Cascades in language acquisition: Re-thinking the linear model of development.

The first 5 years of life are characterized by incredible growth across domains of child development. Drawing from over 50 years of seminal research, this chapter contextualizes recent advances in language sciences through the lens of developmental cascades to explore complexities and connections in acquisition. Converging evidence-both classic and contemporary-points to the many ways in which advances in one learning system can pose significant and lasting impacts on the advances in other learning systems. This chapter reviews evidence in developmental literature from multiple domains and disciplines (i.e., cognitive, social, motor, bilingual language learning, and communication sciences and disorders) to examine the phenomenon of developmental cascades in language acquisition.

Find your manners: how do infants detect the invariant manner of motion in dynamic events?

To learn motion verbs, infants must be sensitive to the specific event features lexicalized in their language. One event feature important for the acquisition of English motion verbs is the manner of motion. This article examines when and how infants detect manners of motion across variations in the figure's path. Experiment 1 shows that 13- to 15-month-olds (N = 30) can detect an invariant manner of motion when the figure's path changes. Experiment 2 reveals that reducing the complexity of the events, by dampening the figure's path, helps 10- to 12-month-olds (N = 19) detect the invariant manner. These findings suggest that: (a) infants notice event features lexicalized in English motion verbs, and (b) attention to manner can be promoted by reducing event complexity.

More than just a game: Transforming social interaction and STEM play with Parkopolis.

Science, technology, engineering, and math (STEM) focused language and interactions build a foundation for later STEM learning. This study examines the ability of the life-size math and science board game "Parkopolis" to foster STEM language and interaction in young children and their families. This study is part of a larger initiative called Playful Learning Landscapes that aims to create playful learning opportunities for children and families in the places they naturally go. Observational results from 562 families suggest that caregivers and children in Parkopolis demonstrated greater STEM language, engagement, interaction, and physical activity compared to a STEM focused traditional children's museum exhibit. Implications and next steps are discussed in regards to maximizing the number of families that can benefit from Parkopolis' playful STEM learning opportunities. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

Live action: can young children learn verbs from video?

The availability of educational programming aimed at infants and toddlers is increasing, yet the effect of video on language acquisition remains unclear. Three studies of 96 children aged 30-42 months investigated their ability to learn verbs from video. Study 1 asked whether children could learn verbs from video when supported by live social interaction. Study 2 tested whether children could learn verbs from video alone. Study 3 clarified whether the benefits of social interaction remained when the experimenter was shown on a video screen rather than in person. Results suggest that younger children only learn verbs from video with live social interaction whereas older children can learn verbs from video alone. Implications for verb learning and educational media are discussed.

Community-Based, Caregiver-Implemented Early Language Intervention in High-Risk Families: Lessons Learned.

BACKGROUND: High-quality, early caregiver-child interaction facilitates language, cognitive, and health outcomes. Children in low socioeconomic status households experience less frequent and lower-quality language interactions on average than their middle to high socioeconomic status peers. Early caregiver-implemented intervention may help to improve outcomes for these children. OBJECTIVES: This article describes how we used community-based participatory research (CBPR) to develop and implement a community-based, caregiver-implemented early language intervention, including the challenges, solutions, and lessons learned in the process of CBPR. METHODS: We adopted an ethnographic approach to document and analyze our CBPR experiences in multiple phases of the project, including intervention design, training, implementation, and evaluation. LESSONS LEARNED: Developing the CBPR partnership, co-designing and implementing the study, and managing systems- level concerns like obtaining funding were central challenges for the researcher-community team. CONCLUSIONS: The CBPR model enhances early language intervention research by facilitating understanding of families in underserved communities and increasing the cultural relevancy of intervention materials.

The Theoretical and Methodological Opportunities Afforded by Guided Play With Young Children.

For infants and young children, learning takes place all the time and everywhere. How children learn best both in and out of school has been a long-standing topic of debate in education, cognitive development, and cognitive science. Recently, guided play has been proposed as an integrative approach for thinking about learning as a child-led, adult-assisted playful activity. The interactive and dynamic nature of guided play presents theoretical and methodological challenges and opportunities. Drawing upon research from multiple disciplines, we discuss the integration of cutting-edge computational modeling and data science tools to address some of these challenges, and highlight avenues toward an empirically grounded, computationally precise and ecologically valid framework of guided play in early education.

Young children associate novel words with complex objects rather than salient parts.

How do children learn associations between novel words and complex perceptual displays? Using a visual preference procedure, the authors tested 12- and 19-month-olds to see whether the infants would associate a novel word with a complex 2-part object or with either of that object's parts, both of which were potentially objects in their own right and 1 of which was highly salient to infants. At both ages, children's visual fixation times during test were greater to the entire complex object than to the salient part (Experiment 1) or to the less salient part (Experiment 2)--when the original label was requested. Looking times to the objects were equal if a new label was requested or if neutral audio was used during training (Experiment 3). Thus, from 12 months of age, infants associate words with whole objects, even those that could potentially be construed as 2 separate objects and even if 1 of the parts is salient.

Where music meets space: Children's sensitivity to pitch intervals is related to their mental spatial transformation skills.

Relations have been found among various continuous dimensions, including space and musical pitch. To probe the nature and development of space-pitch mappings, we tested 5- to 7-year-olds and adults (N=69), who heard pitch intervals and were asked to choose the corresponding spatial representation. Results showed that children and adults both mapped pitches continuously onto space, although effects were stronger in older than younger children. Additionally, children's spatial and numerical skills were tested, showing a relation between children's spatial and pitch-matching skills, and between their spatial and numerical skills. However, pitch and number were not related, suggesting spatial underpinnings for pitch and number.

Social attention need not equal social intention: From attention to intention in early word learning.

Bloom's eloquent and comprehensive treatment of early word learning holds that social intention is foundational for language development. While we generally support his thesis, we call into question two of his proposals: (1) that attention to social information in the environment implies social intent, and (2) that infants are sensitive to social intent at the very beginnings of word learning.