Recently, biological aging has been quantified in DNA-methylation samples of older adults and applied as so-called "methylation profile scores" (MPSs) in separate target samples, including samples of children. This nascent research indicates that (1) biological aging can be quantified early in the life course, decades before the onset of…

According to the World Health Organization, there are currently more than 55 million people living with dementia worldwide, and this figure is expected to triple by 2050. Recent studies suggest that there may be a link between childhood trauma (which refers to exposure to overwhelmingly stressful experiences before the age of 18 years) and the…

Solitude occurs from childhood to old age. In this special issue introduction, we offer a lifespan perspective on matters of solitude with the aim to point to pertinent issues in the field. We propose that solitude serves important functions that may vary across different times in life and that solitude needs to be considered in the context in…

Children's school readiness as they enter kindergarten is an important predictor of their academic success and ultimately their long-term health and economic outcomes. Research shows that participation in high-quality early childhood education helps preschoolers gain the foundational language and literacy skills as well as the social-emotional…

Prior research suggests that social relations may play a role in explaining individual differences in cognitive functioning in older adulthood. In particular, early life maternal relationship quality (MRQ) has been shown to be a strong predictor of later-life socioemotional outcomes and may also contribute to later-life cognitive outcomes. The…

Each year, the Interagency Autism Coordinating Committee (IACC) releases a list of scientific advances that represent significant progress in the field of autism research. The "2021 Summary of Advances" provides short, plain language summaries of the top research breakthroughs selected by the IACC from a pool of research articles…

The acquisition of complex motor, cognitive, and social skills, like playing a musical instrument or mastering sports or a language, is generally associated with implicit skill learning (SL). Although it is a general view that SL is most effective in childhood, and such skills are best acquired if learning starts early, this idea has rarely been…

We examined five-year-old-children's age stereotyping using a modified Piagetian conservation task. Children were asked if two lines of objects were the "same" after one line had been made longer (transformed). A conversational account posits that children's answers reflect assumptions about the asker's motivation for the question (Schwarz, 1996).…

Bandura's Social Learning Theory purports that early exposure to this social information may have an impact on children's schema development (e.g., Bandura, 2001), which may influence how children and later adults think about what it means to age and get older (e.g., what it means to be an aging woman in society). By extension, if the…

Multitalker situations confront listeners with a plethora of competing auditory inputs, and hence require selective attention to relevant information, especially when the perceptual saliency of distracting inputs is high. This study augmented the classical forced-attention dichotic listening paradigm by adding an interaural intensity manipulation…

Webkinz World is a popular virtual world for elementary school-aged children, attracting millions of unique visitors per month. Despite its popularity, research has yet to explore how Webkinz World connects to children's emerging abilities or influences their cognitive and social development. Using in-depth observation and content analysis, this…

Many social interactions require the synchronization--be it automatically or intentionally--of one's own behavior with that of others. Using a dyadic drumming paradigm, the authors delineate lifespan differences in interpersonal action synchronization (IAS). Younger children, older children, younger adults, and older adults in same- and mixed-age…

Popular reasoning theories postulate that the ability to inhibit inappropriate beliefs lies at the heart of the human reasoning engine. Given that people's inhibitory capacities are known to rise and fall across the lifespan, we predicted that people's deductive reasoning performance would show similar curvilinear age trends. A group of children…

Much of the research on orphan and vulnerable children in sub-Saharan Africa has focused on their risks and vulnerabilities. This article describes the "funds of knowledge" (Moll and Greenberg, 1990) and means of acquiring new knowledge of children living in child-headed households in Uganda's Rakai District. Using ethnographic methods,…

Few people are willing to admit that senior adults and young children share many common characteristics, including: (1) changes in development; (2) need for companionship; and (3) the desire to be understood. These two groups are connected mostly through direct interaction with middle-aged adults. One very practical way to build a greater sense of…