Sustained attention (SA) is an endogenous form of attention that emerges in infancy and reflects cognitive engagement and processing. SA is critical for learning and has been measured using different methods during screen-based and interactive contexts involving social and nonsocial stimuli. How SA differs by measurement method, context, and…

Advancements in medical technology have contributed to increased rates of preterm birth. Prematurity places infants at high risk for feeding difficulties, however. Early identification and assessment of preterm infant dysphagia is critical to maximize nutrition and hydration, feeding safety, and growth and development. The purpose of this study…

This longitudinal study aimed to investigate infants' spontaneous object interactions during naturalistic longitudinal observations in a day care centre in Japan. Infants' and caregivers' interactions during free play time were videotaped. The main focus related to how infants' object interactions changed during locomotor development. Observations…

Visual attention in complex, dynamic scenes is attracted to locations that contain socially relevant features, such as faces, and to areas that are visually salient. Previous work suggests that there is a "global shift" over development such that observers increasingly attend to faces with age. However, no prior work has tested whether…

Digital devices have become more widespread in recent years and children's interest in them has significantly changed their own learning habits. Individual interaction with digital devices in infancy and early childhood posits both benefits and risks in gaining informal learning experiences. The lack of relevant studies on the issue brings forward…

Mind-mindedness (MM) refers to caregivers' proclivity to treat a child as having an active and autonomous mental life. It has been shown to be a powerful predictor of many developmental outcomes and to mitigate the impact of risk conditions. However, longitudinal studies on MM reporting changes over time and individual differences among mothers…

This experiment tests the age at which left-to-right spatial associations found in infancy shift to culture-specific spatial biases in later childhood, for both numerical and non-numerical information. Children ages 1-5 years (N = 320) were tested within an eye-tracking paradigm which required passive viewing of a video portraying a spatial…

Caregivers' moral reactions to young children's moral transgressions are informative environmental responses for children's developing understanding of morality. One central question concerns by which age parents hold their children responsible for moral transgressions. This study indirectly investigated this question by having parents and…

The current research aims at constructing a developmentally sensitive mindreading scale (i.e., a battery of tasks measuring different aspects of mindreading ability in children from 1 to 3.5 years of age). Over 300 Polish children were tested at six-month intervals with 48 different tasks designed to measure mindreading ability (for a total of six…

This dissertation investigated the caregiving relationships between infants and nonparental caregivers in early childcare settings through the lens of attachment and language behaviors. This study sought to provide an opportunity to extend our understanding of the socioemotional factors that influence children's development in their daily lives.…

Peruvian children's sub-optimal results on international and national assessments underscore the need for enhanced investments in early childhood development (ECD) such as shared reading between caregivers and young children. We conducted a qualitative study with 13 mothers of young children ages 11-25 months old that: used focus groups to explore…

The Indiana Department of Education (IDOE) is preparing to undertake the work of reviewing the state early learning standards - Indiana's Early Learning Foundations (the "Foundations"). In anticipation of this work, staff at IDOE have requested support from the Region 8 Comprehensive Center in identifying approaches states have taken in…

Personal narrative is decontextualized talk where individuals recount stories of personal experience about past or future events. As an everyday discursive speech type, narrative potentially invites parents and children to explicitly link together, generalize from, and make inferences about representations--that is, to engage in higher-order…

Personal narrative is decontextualized talk where individuals recount stories of personal experiences about past or future events. As an everyday discursive speech type, narrative potentially invites parents and children to explicitly link together, generalize from, and make inferences about representations--i.e., to engage in higher-order…

Head-mounted video cameras (with and without an eye camera to track gaze direction) are being increasingly used to study infants' and young children's visual environments and provide new and often unexpected insights about the visual world from a child's point of view. The challenge in using head cameras is principally conceptual and concerns the…