Psychology Commons^™

Indirect Effects Of Hpa Axis Dysregulation In The Association Between Peer Victimization And Depressed Affect During Early Adolescence, Ryan E. Adams, Jonathan Santo, William M. Bukowski

Psychology Faculty Publications

Objective

Previous research has identified a link between peer victimization and depressive symptoms during adolescence. The goal of the current study is to examine the possible indirect effects of HPA axis dysregulation in the link between adolescent peer victimization and depressive symptoms.

Method

A total of 113 boys (n = 61) and girls (n = 52) participants from grade 5 (M age = 10.31 years) and grade 6 (M age = 11.33 years) who were predominantly European-Canadian completed self-report measures of peer victimization and depressed affect as well as, measures of salivary cortisol and self-reports of …

Bullying Victimization And Friendship As Influences On Sleep Difficulty Among Brazilian Adolescents, Thiago Henrique Roza, Vitor Atsushi Nozaki Yano, Sarah Aline Roza, Jonathan Santo, Josafa M. Da Cunha

Psychology Faculty Publications

Bullying victimization is associated with poor health-related outcomes, including sleeping problems. The present study aimed to investigate the impact of bullying victimization on sleep difficulty, and the moderating effect of the number of close friends on this association, also exploring differences across genders. The study was based on a nationally-representative survey on adolescent health conducted in Brazilian schools, involving a total of 109,104 participants, enrolled at the 9th year in 2012. The measures used in the analysis included socio-demographic characteristics, bullying victimization, sleep difficulty, and number of close friends. In the multilevel models, reporting more peer victimization was associated with …

High Cortisol Levels In The Offspring Of Parents With Bipolar Disorder During Two Weeks Of Daily Sampling, Mark A. Ellenbogen, Jonathan Santo, Anne-Marie Linnen, Claire-Dominique Walker, Sheilagh Hodgins

Psychology Faculty Publications

Objectives: The hypothalamic-pituitary-adrenal (HPA) axis is compromised in major depression, bipolar disorder (BD), and in the offspring of parents with major depression. Less is known about the offspring of parents with BD (FH+). The present project provides follow-up to a previous study showing that the adolescent (mean age 16.7 years) FH+ offspring had higher salivary cortisol levels than the offspring of parents with no mental disorder (FH−) throughout the day in their natural environment, and that girls had higher cortisol levels than boys (Ellenbogen MA, Hodgins S, Walker C-D, Adam S, Couture S. Daytime cortisol and stress reactivity in the …