Longitudinal associations between adolescent catch-up sleep, white-matter maturation and internalizing problems.

Sleep is an important contributor for neural maturation and emotion regulation during adolescence, with long-term effects on a range of white matter tracts implicated in affective processing in at-risk populations. We investigated the effects of adolescent sleep patterns on longitudinal changes in white matter development and whether this is related to the emergence of emotional (internalizing) problems. Sleep patterns and internalizing problems were assessed using self-report questionnaires in adolescents recruited in the general population followed up from age 14-19 years (N = 111 White matter structure was measured using diffusion tensor imaging (DTI) and estimated using fractional anisotropy (FA).

Chronotype, Longitudinal Volumetric Brain Variations Throughout Adolescence, and Depressive Symptom Development.

Objective: Adolescence is a critical period for circadian rhythm, with a strong shift toward eveningness around age 14. Also, eveningness in adolescence has been found to predict later onset of depressive symptoms. However, no previous study has investigated structural variations associated with chronotype in early adolescence and how this adds to the development of depressive symptoms.

Mental health services in the school environment-Future visions using a phenomenographic approach.

Aims And Objectives: First, to describe the variation in stakeholders' perceptions related to the desirable mental health services in school environments. Second, to construct alternative future visions based on these perceptions. Finally, to describe stakeholders' perceptions about the actions needed to reach such an ideal state.