Regulation, Emotion

Mood dysregulation and suicidal ideation are closely associated with disruption of sleep and circadian rhythms. Moreover, sleep problems and circadian disruption are commonplace features of military life. Critically, specifically timed light exposure plays a powerful role in regulating mood, circadian rhythms, and sleep-wake patterns. Therefore, investigators propose to conduct a large-scale clinical trial on the effectiveness of morning light exposure treatment for improving sleep-wake patterns, emotional and mental health, and suicidal thoughts in military personnel.

The goal of this clinical trial is to learn about how psychotherapy works for children and adolescents aged 8 - 15 with anxiety, depression, trauma, or disruptive behaviour. The main question it aims to answer is: • Is the biobehavioural regulation of negative emotion a transdiagnostic mechanism of treatment response in psychotherapy for children with anxiety, depression, trauma and/or disruptive behaviour? Children and their parents will be randomly assigned to an evidence-based, transdiagnostic treatment (the Modular Approach to Therapy for Children with Anxiety, Depression, Trauma, and Conduct Problems; MATCH-ADTC) or a waitlist control condition. Participants in both groups will complete a baseline assessment, weekly measures consisting of brief symptom scales and medication tracking, and quarterly assessments every 3 months. Following the intervention/waitlist period, our team will conduct post-test assessments. All assessments, except for the weekly surveys, will consist of symptom scales, clinical interviews, experimental tasks and physiological measures.