Youth screen media activity is a growing concern, though few studies include objective
usage data. Through the longitudinal, US-based Adolescent Brain Cognitive Development …

Teens are using mobile devices for an increasing number of activities. Smartphones and a
variety of mobile apps for communication, entertainment, and productivity have become an …

Background Concerns abound regarding childhood smartphone use, but studies to date
have largely relied on self-reported screen use. Self-reporting of screen use is known to be …

Children and youth spend increasingly more time on their smartphones, which significantly
impacts their lives (George & Odgers, 2015). The current understanding of adolescents' …

Adolescents are among the highest utilizers of Smartphones and social media applications
(apps) in the United States. There has been increased concern that youth may become …

Purpose: Smartphones are become increasingly ubiquitous among adolescents. Recent
studies suggest smartphone use is related to both physical and mental health, including …

METHODS: We recruited 346 English-speaking parents and guardians of children aged 3 to
5 years to take part in a prospective cohort study of child media use. All interactions with …

Excessive smartphone use has become a growing issue among adolescents as they
develop mentally and socially. While researchers have examined individual and …

Mobile devices (eg, tablets and smartphones) have been rapidly integrated into the lives of
children and have impacted how children engage with digital media. The portability of these …

Utilizing the built‐in features of smartphones, a novel app “eMoodie”(www. emoodie. com)
was developed which passively collects information on app and smartphone/tablet usage …