The aim of this study is to examine the relationship between toddlers' and pre-schoolers' sleep problems, screen-based media use, sleep regimen and the role of child emotional reactivity in this relationship. This research is a part of an extensive national study. Participants are 754 children aged 2-5 years old, and their parents. Sleep problems…

During typical childhood interactions with screen-media, two features are prominent. First, input is dominated by audio-visual signals and second, these predominately provide children with ready-made images, potentially negating effortful mental imagery construction. We present a two-year longitudinal study on a sample of 109 preschool children.…

Screen time is now pervasive in the lives of preschool children, posing potential risks for sleep disturbances and behavioural problems. Therefore, the present study used a questionnaire to survey mothers (M[subscript age] = 35.56 years, SD = 3.62 years) of a total of 571 preschool children (M[subscript age] = 4.70 years, SD = 0.88 years; 44.70%…

Changes in physical activity levels and increases in screen time across different cohorts may affect young children's motor skill development (MSD). This study examined cohort differences in MSD in China. Four-year-olds living in Shanghai and in Guizhou province were assessed, in individual sessions, in 2013 (n = 230) and in 2017 (n = 446).…

This study tested potential mediating effects of household screen media experience (HSME) on the relationship between SES and six aspects of preschooler's sociality: social cognition, independence, aggression, social adaptivity, peer relationship and emotional control. A total of 471 parents of 3- to 6-year-old children completed an online…