Chronic stress predicts post-traumatic stress disorder symptoms via executive function deficits among urban American Indian children

Applying an Indigenous Connectedness Framework to Examine Environmental Risk and Protective Factors for Urban American Indian Children's Executive Function Development

Indigenous frameworks suggest environmental risk and protective factors for American Indian (AI) children's development can be understood in terms of connecting and disconnecting forces in five domains: spirituality, family, intergenerational ties, community, and environment/land. This study examined the prevalence of these forces among 156 urban AI parents and their children (mean age = 10.69, SD = 1.92) and investigated associations with child executive function (EF). Parents reported on three disconnecting forces (parent stressful life events, discrimination, and neighborhood risks) and two connecting forces (knowledge of tribal history and engagement with cultural beliefs and traditional practices). Parents rated children's EF using the Behavior Rating Inventory of Executive Function (BRIEF), and a subsample of children (n = 81) provided self-report EF data. Controlling for income and child age, connecting forces (parent engagement with cultural beliefs and traditional practices and knowledge of tribal history) were associated with higher parent-reported and child self-reported EF, while disconnecting forces (discrimination and neighborhood risk) were related to lower child EF. Findings highlight the protective role of cultural connectedness for urban AI children's cognitive development, and the importance of centering Indigenous theory in risk and resilience research with AI families.

Strong cultural connectedness buffers urban American Indian children from the negative effects of stress on mental health

We explored whether urban American Indian (AI) caregivers who maintained a strong sense of cultural connectedness buffered their children from the negative effects of stress on mental health. A community sample of 161 urban AI children (91 girls) ages 8-15 years (M = 11.20 years) and their primary caregivers participated between 2016 and 2017. Caregiver cultural connectedness moderated associations among child stressful life events and increased anger (R 2 = .13) and post-traumatic stress disorder (PTSD) symptoms (R 2 = .15). For caregivers with greater cultural connectedness, associations were attenuated and not significant. Higher hair cortisol was related to increased depressive (R 2 = .11), anxiety (R 2 = .10), and PTSD (R 2 = .15) symptoms and was not moderated by cultural connectedness.

Association between maltreatment, hair cortisol concentration, positive parent-child interaction, and psychosocial outcomes in Chinese preschool children

Children now are facing an increasing risk of early life stress (ELS), which leads to detrimental psychosocial outcomes. Behavior studies suggested that positive parental interactions might moderate the negative impact of ELS, but the related biological alteration remains unclear. This study aims to investigate whether positive parent-child interactions moderate the association between maltreatment (as a severe form of ELS) and hair cortisol concentration (HCC), as well as between HCC and psychosocial outcomes in young children. Participants were 6-year-old Chinese children (N = 257, Mage = 6.2, 121 were male) selected by stratified cluster random sampling from a Shanghai population representative cohort. Proximal 3 cm hair strands were analyzed using liquid chromatography coupled with tandem mass spectrometry for HCC. Children's psychosocial outcome was evaluated using the parental report Strengths and Difficulties Questionnaire (SDQ). Parents also reported the frequency of positive parent-child interactions using the Chinese Parent-Child Interaction Scale (CPCIS) as well as the history of maltreatment. Multi-level logistic regression models adjusting for individual, kindergarten, and district confounders were used to evaluate the associations between maltreatment, HCC, and psychosocial outcomes. Interactions terms tested whether more frequent positive parent-child interactions moderates the association between maltreatment and HCC, as well as between HCC and psychosocial outcomes. Maltreated children exhibited higher levels of HCC (B = 1.20, 95% CI: 0.38,2.02; p = 0.004), and children with higher HCC exhibited poorer psychosocial outcomes (B = 0.34, 95% CI: 0.18,0.51; p < 0.001). Positive parent-child interactions did not have a moderating effect on the association between maltreatment and HCC, but they demonstrated a moderating effect on the association between increased HCC and psychosocial outcomes (interaction term: B = -0.42, 95% CI: -0.75,-0.10; p = 0.01). These findings provide evidence that positive parental interaction may serve as a moderator between chronic cortisol exposure and psychosocial problems. It highlights the importance of frequent parent-child interactions, especially among children under a high risk of ELS.

Nurturing resilience in American Indian/Alaska Native preschool children: the role of cultural socialization, executive function, and neighborhood risk

Introduction

American Indian and Alaska Native (AI/AN) children possess numerous cultural assets, yet higher exposures to neighborhood risks (e.g., lack of housing, crime) may present barriers to healthy cognitive development, including executive function (EF). Cultural socialization may promote resilience and support children's early cognition, but this has not been adequately studied. The present study examined the effects of neighborhood risk and cultural socialization on EF for AI/AN preschool children.

Method

Parents/caregivers of 768 AI/AN preschoolers from the 2015 AI/AN Head Start Family and Community Experiences (FACES) Study rated neighborhood risk via two scales: "Neighborhood Problems" and "Environmental Conditions," and cultural socialization practices via two scales: cultural activities and tribal language activities. Children's EF was measured directly using the Pencil Tap Task and the Leiter-R attention subscale.

Results

Families perceived neighborhood risks as relatively low, and overall risk did not predict children's EF. However, higher average language socialization was significantly related to higher EF, as were two specific language activities (encouraging children to learn their tribal language, making sure children heard their tribal language) and two cultural activities (playing AI/AN games, participating in tribal ceremonies), controlling for neighborhood risk.

Discussion

Findings suggest some aspects of cultural socialization may promote resilience among AI/AN preschoolers by supporting early EF. Mechanisms may include increased spiritual, social, and cultural connections, and practice with EF skills during cultural games. Future research should partner with AI/AN communities to investigate culturally grounded EF interventions and reevaluate measures of neighborhood risk to promote resilience and connectedness for AI/AN children.

Relationship between hair cortisol concentrations and cognitive functioning in adolescents with ADHD

Background: Our study aimed to explore whether the hair cortisol concentration (HCC), a measure of long-term cortisol output, is associated with poorer cognitive functioning in adolescents with attention deficit and hyperactivity disorder (ADHD). We further aimed to test the potential moderating effects of sex and childhood maltreatment.Methods: In this cross-sectional study, fifty-three adolescents with ADHD were studied. The ADHD Rating Scale (ADHD-RS) and Childhood Trauma Questionnaire (CTQ) were administered. Seven cognitive tasks from the Cambridge Neuropsychological Test Automated Battery (CANTAB) were administered, and two cognitive factors (attention and memory and executive functioning) were identified by confirmatory factor analysis. A 3-cm hair sample from the posterior vertex region of the head was obtained. HCCs were determined by a high-sensitivity enzyme immunoassay kit. Multiple linear regression analyses were used to explore the association between HCCs and either cognitive performance or ADHD severity while adjusting for sex, childhood maltreatment and the ADHD-RS total score.Results: Sex moderated the relationship between HCCs and attention/memory confirmatory factor analysis (CFA) scores, with better performance in boys with higher HCCs. HCCs were not associated with executive functioning or ADHD symptoms. Childhood maltreatment was associated with inattention symptoms in adolescents with ADHD.Conclusions: Our study suggests that HCCs are positively associated with attention and memory performance in adolescents with ADHD, with a moderating effect of sex (the relationship is strongest in boys).