Studying anxiety in neurogenetic syndromes may inform the intersection of biological and developmental risks, facilitating effective and targeted interventions. We longitudinally examined stranger fear in infants and toddlers with fragile X syndrome (FXS; n = 46) and typical controls (n = 33), as well as associations between observed stranger fear…

Despite implications that stranger fear is an important aspect of developing behavioral inhibition, a known risk factor for anxiety, normative and atypical developmental trajectories of stranger fear across infancy and toddlerhood remain understudied. We used a large, longitudinal data set (N = 1285) including multi-trait, multi-method assessments…

Following a biopsychosocial model, the study investigated the role of child factors (gender, IQ), maternal factors (psychological distress, maternal education and vocabulary, maternal distress) and environmental factors (SES) in the relationship between language impairment and behaviour problems in preschool children. Participants were drawn from…

Periodically not having enough to eat, having a diet that is inadequate, and worrying about being able to afford the amount and type of food that a household needs are all markers of food insecurity. Food insecurity persists across many households with young children and may have negative consequences for the health and well-being of infants and…

Internalizing disorders are a public health issue affecting up to 20% of school-age children, yet few receive assistance. Internalizing difficulties can emerge in the preschool years, with stability from this time onward. To inform prevention programs, knowledge is needed about early internalizing indicators in community samples. This study…