… Early adolescence is … early adolescence. Two waves, two years apart were available at the
time of analyses (June 2022) from the Adolescent Brain Cognitive Development study (ABCD…

Background and aims About 1/3 of youth spend more than four hours/day engaged in screen
media activity (SMA). This investigation utilized longitudinal brain imaging and mediation …

… Accordingly, structural aspects of the PFC may be associated with obesity risk in children
during the pre-adolescent years and into early adolescence. Finally, given the obesity risk …

… The 1-year follow-up sample is representative of the full sample, and full-cohort data from
this visit will be available in a future ABCD data release. Two participants were excluded from …

… Given that ABCD is a longitudinal study with annual assessments, we will be able to follow
this cohort and examine how these and other multilevel factors impact AE and subsequent …

… health problems during early adolescence contrasts with findings from prior cross-sectional …
Finally, our findings may also reflect cohort effects or be specific to the ABCD sample. More …

… ABCD study used a computerized self-administered KSADS and family history reports. The
similarity between the findings from both cohorts … register-based Swedish cohort of more than …

… manner using small, cross-sectional cohorts. We hypothesized that in a cohort of high-risk
youth, … This early adolescence period of eveningness co-occurs with the start of puberty, and …

… The ABCD data used in this report came … in the early adolescent period when lifelong
trajectories of lifestyle risk factors are initiated. Based on previous research using the ABCD dataset…

… Due to the large sample size of the ABCD cohort and our interest in the both the structure
and stability of internalizing symptoms specifically across early adolescence, we chose to …