Peer-reviewed article
Adverse Childhood Experiences and Substance Use: The Mediating Role of Executive Function Deficits.
Yousefkhani MP, Wang X, Vasilenko SA ·
Summary
Written by AI, not yet AICS's view · claude-haiku-4-5-20251001This study examined how adverse childhood experiences (ACEs) affect adolescent substance use, testing whether executive function deficits explain this link. Using data from over 4,700 American adolescents followed over time, researchers found that cumulative ACEs increased substance use partly through weakened executive function, particularly for experiences of deprivation and household violence. However, sexual abuse showed a direct effect on substance use that was not explained by executive function deficits, suggesting it operates through different trauma-related pathways.
Key points
- Executive function deficits mediated 10% of the effect between cumulative ACEs and substance use
- Deprivation-based ACEs (material hardship, emotional neglect) were fully mediated by executive function deficits
- Threat-based adversities like household violence and bullying showed full mediation through executive function
- Sexual abuse demonstrated a significant direct effect on substance use independent of executive function pathways
- Prevention efforts should include both executive function-focused interventions and trauma-focused care for sexual abuse survivors
Limitations
This study is observational and examines associations rather than causal effects. The findings are from a predominantly white US sample, which may limit generalizability to other populations and cultural contexts.
Abstract
Introduction While adverse childhood experiences (ACEs) are robust risk factors for adolescent substance use, the prospective neurocognitive pathways linking both cumulative and specific adversities to substance use remain understudied. This study tested a vulnerability model by examining whether executive function (EF) deficits mediate the link between cumulative and specific ACEs and substance use, and whether this pathway differs for deprivation- versus threat-based adversities. Methods This longitudinal study used parent- and youth-report data from the US Adolescent Brain Cognitive Development (ABCD) Study (N = 4731; Mage at baseline = 9.9 years; 52.3% male; 56.5% White, 13.8% Hispanic, 13.1% Black). We tested mediation models with temporally ordered assessments of ACEs (ages 9-11), parent-reported EF deficits (12-13), and subsequent substance use (13-14). Results The indirect effect of cumulative ACEs on substance use through EF deficits was significant, accounting for 10% of the total effect. Deprivation-based ACEs (material hardship and emotional neglect) were fully mediated by EF. Several threat-based adversities (e.g., household violence, bullying) also showed full mediation. In contrast, sexual abuse demonstrated a significant direct effect but no significant indirect effect through EF. Conclusions EF deficits represent a significant pathway from cumulative ACEs to adolescent substance use, supporting a vulnerability model. This pathway appears robust for deprivation-based and many chaotic threat-based adversities, but sexual abuse is an exception that likely operates through non-EF, trauma-specific mechanisms. Prevention efforts should be multifaceted, incorporating EF-focused interventions for at-risk youth while prioritizing trauma-focused care for survivors of sexual abuse.