The following manuscript explores the application of family science theories to the field of child life. Ecological systems theory, family systems theory, and conflict theory will be presented and applied to child life. These theories explain the responsibilities and experiences of the specialist, their relationship with patients and families, and…

Experience-dependent change pervades early human development. Though trajectories of developmental change have been well charted in many domains, the episode-to-episode schedules of experiences on which they are hypothesized to depend have not. Here, we took up this issue in a domain known to be governed in part by early experiences: music. Using…

The study of how children learn numbers has yielded one of the most productive research programs in cognitive development, spanning empirical and computational methods, as well as nativist and empiricist philosophies. This paper provides a tutorial on how to think computationally about learning models in a domain like number, where learners take…

The ability to adjust movements in response to perturbations is key for an efficient and mature nervous system, which relies on two complementary mechanisms -- feedforward adaptation and feedback control. We examined the developmental trajectory of how children employ these two mechanisms using a previously validated visuomotor rotation task,…

Happiness is one of the most important parenting goals in today's modern society. To promote a happy childhood, we need to understand what happiness means to children. Contrary to the view that young children may equate happiness with satisfying material desires and experiencing simple pleasures, in this article, I review recent developmental…

Counterfactual emotions such as regret may aid future decision-making by encouraging people to focus on controllable features of personal past events. However, it remains unclear when children begin to preferentially focus on controllable features of such events. Across two studies, Australian 4-9-year-olds (N = 336, 168 females; data collected…

The influences in a child's developmental environment, both positive and negative, interact to shape the development of their brain, the integrated systems in their body--including the immune, metabolic, and cardiovascular systems--and even how their genes are expressed. Clean air is an essential part of a healthy developmental environment, and…

Aperiodic electroencephalography (EEG) activity is hypothesized to index biological mechanisms that underpin brain functioning. This longitudinal study characterized the developmental trajectories of the aperiodic slope (i.e., aperiodic exponent) and offset from infancy to 7 years of age in a US community sample (N = 391, 46.5% female,…

Working memory (WM) is a critical cognitive system that supports processing a variety of information. Remembering different types of objects may impose different levels of cognitive demands on WM performance. In the present study, we examined 205 children's WM in representing different types of content and its developmental trajectories in early…

Early years education begins with the rejection of the notion that children are deficient adults. But it has culminated in a deep and abiding concern for learning difficulties, particularly in the field of reading. The purpose of this paper is to reconcile the seeming contradiction between the former view, which appears to eschew the concept of…

Unlike adults, young children think that many weird and unlikely events are impossible. Existing theories have argued that this developmental shift is driven primarily by age-related changes in knowledge as well as an increasing ability to reflect on one's modal intuitions. However, this intuition + reflection model fails to explain…

Deleuze and Guattari's thought on remainders of childhood has proven its worth for educational theory and philosophy. However, thus far the discussion has not paid much attention to their notion of infantilization, which reveals a new dimension of their understanding of childhood. In this article, I develop both their concept of becoming-child and…

The capacity for growth and development is an integral part of being human. Infant social-emotional development is critically important to overall development and begins in the first months of life. These processes encompass how we relate to ourselves and others in our everyday lives (Malti & Cheah, 2021). Social-emotional development includes…

Research on factors underlying socioeconomic status (SES)-related inequalities in child development mainly focuses on single countries and specific influential factors. Only few studies scrutinize to what extent differences in children's early behavioural outcomes vary across countries and whether the processes that account for them are common or…

Adverse health events within families can harm children's development, including their early literacy. Using data from a longitudinal Wisconsin birth cohort, we estimated the spillover effect of younger siblings' gestational ages on older siblings' kindergarten-level literacy. We sampled 20,014 sibling pairs born during 2007-2010 who took…