Honors Thesis Presentation.pdf
- Author (aut): Park, Deborah
- Thesis director: Pardini, Dustin
- Committee member: Fine, Adam
- Contributor (ctb): Barrett, The Honors College
- Contributor (ctb): School of Criminology and Criminal Justice
Background: ACEs has been associated with stress and violence in prior research. More research is needed to set up gender differences between males and females displaying violence and stress in response to ACEs. Objectives: This study investigated the effects of ACEs and gender on exhibited frequencies of violence and stress within youth. Methods: This study used descriptive statistics and regression to examine the relationships between gender and aces on violence and stress using data from the Arizona Youth Survey (AYS). Interactions were included to evaluate if gender moderated the effect of ACEs. Results: Analyses showed that ACEs significantly impacted youths’ engagement in violence and experiences of stress. Additionally, boys engaged in more violence while girls experienced increased stress. Interaction effects were not substantial as compared to the main effects of ACEs and gender. Conclusion: Given the results, youth interventions should focus on the overall impact of ACEs, regardless of gender.
Abnormalities in reward and punishment processing are implicated in the development of conduct problems (CP), particularly among youth with callous-unemotional (CU) traits. However, no studies have examined whether CP children with high versus low CU traits exhibit differences in the neural response to reward and punishment. A clinic-referred sample of CP boys with high versus low CU traits (ages 8–11; n = 37) and healthy controls (HC; n = 27) completed a fMRI task assessing reward and punishment processing. CP boys also completed a randomized control trial examining the effectiveness of an empirically-supported intervention (i.e., Stop-Now-And-Plan; SNAP). Primary analyses examined pre-treatment differences in neural activation to reward and punishment, and exploratory analyses assessed whether these differences predicted treatment outcome. Results demonstrated associations between CP and reduced amygdala activation to punishment independent of age, race, IQ and co-occurring ADHD and internalizing symptoms. CU traits were not associated with reward or punishment processing after accounting for covariates and no differences were found between CP boys with high versus low CU traits. While boys assigned to SNAP showed a greater reduction in CP, differences in neural activation were not associated with treatment response. Findings suggest that reduced sensitivity to punishment is associated with early-onset CP in boys regardless of the level of CU traits.