Faculty Bibliography

Much has been elucidated about the neurobiological effects of early childhood trauma and its transgenerational transmission, although its integration into psychodynamic therapy has been challenging. Here we focus on a common area of interest to both areas-emotion and cognition rooted in past trauma experiences and how these experiences produce maladaptive behaviors transmitted to the next generation through parenting behaviors. We explore two mammalian research paradigms of early-life trauma explicitly within attachment, and transmission of transgenerational pathology through the caregiver to the offspring. We suggest that understanding the neurobiology through this mammalian nonhuman research can provide, in part, an understanding for the complex psychodynamic thought processes seen in adulthood, particularly as the mother begins to raise her own child. Specifically, while cognition and complex conscious and unconscious thoughts are characteristic of the human condition following early-life trauma, the mother-infant attachment system is a phylogenetically preserved system with some basic characteristics seen across species. We outline how embracing both the cognition and preserved trauma neural programing within attachment may provide some insight into cases, especially for the parent-child social interactions well documented to program the brain. Using mother-infant attachment, we suggest there is an area of convergence between clinical psychodynamic focus and basic research in brain function and mechanisms. Focusing on this convergence may provide a unique viewpoint to psychodynamics to supplement diagnosis and treatment.

PURPOSE/OBJECTIVE:Emotion Dysregulation (ED) in children with ASD are linked to behavioral challenges, such as aggression, self-injurious behaviors, and anxiety. Parenting stress, often elevated in families of autistic children, also significantly influences child behavioral outcomes. However, little is known about the dynamics among parenting stress, child ED, and behavioral problems in ASD, especially during the early developmental period. The primary aim of the study was to examine the mediating role of child ED in the association between parenting stress and future child behavioral outcomes in toddlers/preschoolers with ASD. METHODS:The sample included 51 autistic young children aged 18-53 months and their caregivers. Parenting stress (PSI-SF), child ED (BRIEF-ECI), and behavioral problems (CBCL) were assessed, with 30 participants completing a 12-month follow-up. Analyses were conducted starting with Pearson correlations, followed by mediation analyses using the PROCESS macro to examine the mediating role of ED. RESULTS:Higher parenting stress was correlated with more severe ED and increased behavioral challenges in children. Mediation analyses revealed that child ED fully mediated the relation between parenting stress and child behavioral challenges. A significant mediation effect of child ED was found on the association between PSI-SF Parental Distress subdomain and child internalizing behaviors. CONCLUSIONS:Child ED may play a key role mediating the association between parenting stress and child internalizing behavioral problems in autistic toddlers/preschoolers. Interventions targeting both parental well-being and child ED development could improve behavioral outcomes.

INTRODUCTION/BACKGROUND:Sexual and gender minority (SGM) populations experience health disparities linked to minority stress (socially-based stressors), including proximal (e.g., SGM internalized stigma) and distal stressors (e.g., negative bias from non-SGM people toward SGM individuals). We synthesized and evaluated the effectiveness of interventions reducing proximal and distal SGM stress. METHODS:We followed PRISMA and Joanna Briggs Institute guidelines (CRD42024604568). Five databases were searched and eligible studies evaluated interventions reducing minority stress with sufficient data for effect size estimation. We estimated three-level multivariate meta-regression models for distal and proximal minority stress using restricted maximum likelihood estimation and robust standard error estimates. RESULTS:Fifty-one studies (31 distal, 20 proximal) with 11253 participants (SGM n = 3168) were included. Distal stress interventions yielded a null-to-small pooled effect (g = 0.185, 95% CI = 0.078, 0.292). Psychological interventions had a small effect (g = 0.361, 95% CI = 0.178, 0.544) and outperformed psychoeducation and social contact-based interventions (-0.257 < β < -0.221, p < 0.05). For proximal minority stress, although the overall pooled effect was nonsignificant (g = 0.071, 95% CI = -0.154, 0.297) the intervention × outcome interaction was (Wald Q = 4.661, p = 0.005). Narrative therapy targeting identity affirmation showed a large pooled effect (g = 1.846, 95% CI = 1.032, 2.659). Pairwise contrasts using this intervention-outcome combination as reference indicated that psychoeducation and psychological interventions had greater effects on internalized stigma and perceived social support (2.172 < β < 2.719, p < 0.05). CONCLUSION/CONCLUSIONS:Psychological interventions may reduce both proximal and distal stress. However, aligning interventions to specific minority stressors may yield greater benefit on SGM populations' health.

Attention-deficit/hyperactivity disorder (ADHD) is a common neurodevelopmental condition in  children and young people worldwide. Robust estimates of its incidence, prevalence, and burden are essential for informing public health policy and planning. Using data from the Global Burden of Disease Study 2021 (GBD 2021), this global population-based analysis assessed ADHD among individuals under 20 years of age across 204 countries and territories from 1990 to 2021. The study examined incidence, prevalence, and disability-adjusted life years (DALYs) associated with ADHD. In 2021, there were an estimated 46,890,733 (95% uncertainty interval [UI]: 32,136,904-67,271,064) prevalent cases and 4,111,621 (2,775,203-5,954,941) incident cases globally in individuals under 20 years. ADHD accounted for 574,979 (294,277-977,557) DALYs, with a global prevalence rate of 1.78% (1.22-2.55%) and an incidence rate of 0.16% (0.11-0.23%). The global DALY rate was 21.8 (11.2-37.1) per 100,000 population. Prevalence and incidence were highest in Australia, with rates of 5.62% (4.16-7.46%) and 0.49% (0.34-0.66%), respectively. Between 1990 and 2021, global prevalence and incidence rates decreased modestly by 6.0 and 5.81%, respectively. Across all GBD regions, prevalence was higher in males than females (2.52 vs 0.99%) and increased with higher socio-demographic index levels. Overall, the GBD 2021 study provides the most comprehensive global estimates of ADHD burden in young people. These findings are important for guiding policymakers and stakeholders, although potential methodological limitations suggest that the prevalence, incidence, and burden of ADHD may be underestimated.

INTRODUCTION/BACKGROUND:A variety of rating scales are currently being used to assess symptom severity and quantify symptoms change in attention-deficit/hyperactivity disorder (ADHD) research and clinical practice. This poses difficulties in interpreting scores from different scales in clinical practice and synthesizing data from studies using different scales. We aimed to develop algorithms for converting scores across the ADHD scales most often used in randomized controlled trials (RCTs) of ADHD medications in children/adolescents and adults, and to develop an online tool for implementing the algorithms. METHODS: RESULTS:We linked six commonly used ADHD scales, such as the ADHD Rating Scale (ADHD-RS-IV; investigator-rated) and the Conners' Parent Rating Scale (CPRS-R:S). Spline models most frequently yielded the lowest prediction error, outperforming alternative conversion algorithms for absolute scores in 6 out of 12 univariable models and 8 out of 12 multivariable models. The tool for scores conversion is available at ADHD_Scale_Conversion_Tool. CONCLUSIONS:Our linkage algorithms enable the comparison and harmonization of findings across studies using different ADHD rating scales. Translating scores across scales improves the interpretability of research findings, facilitates future evidence synthesis across studies, and may support clinical practice. Our online tool supports the practical uptake of our results.

IMPORTANCE/UNASSIGNED:Group interpersonal psychotherapy (IPT-G) is effective across diverse populations and adaptable to low-resource settings. OBJECTIVE/UNASSIGNED:To assess whether shortened 4-session mini IPT-G vs full IPT-G delivered by lay health care workers reduces depression and improves family functioning among perinatal adolescents. DESIGN, SETTING, AND PARTICIPANTS/UNASSIGNED:This pilot randomized clinical trial of group IPT for depression used a 3-arm longitudinal type 1 implementation-effectiveness design between May 13, 2022, and April 1, 2024, at 2 primary care maternal and child health clinics in Nairobi, Kenya. The study applied a collaborative care approach within the World Health Organization (WHO) Mental Health Gap Action Programme framework for training a nonspecialist workforce, where trained nurses screened participants and supervised group sessions delivered by community health promoters collaboratively with psychologists. Participants included perinatal adolescents, aged 13 to 18 years, in their first to second trimester of pregnancy. INTERVENTION/UNASSIGNED:Participants were randomized to treatment as usual (TAU [n = 44]), mini IPT-G (n = 38), or full IPT-G (n = 40). TAU involved information sheets; mini IPT-G was culturally adapted; and full IPT-G followed the WHO protocol. MAIN OUTCOMES AND MEASURES/UNASSIGNED:Primary outcomes included depression measured by the 9-item Patient Health Questionnaire (PHQ-9) and functional impairment within 1 week post intervention and at 6-month follow-up. Secondary outcomes were posttraumatic stress disorder, psychological distress, disability, and self-efficacy. Linear mixed models were used to evaluate the preliminary effectiveness of the interventions. RESULTS/UNASSIGNED:Among the 122 adolescents included in the analysis (median age, 17 [IQR, 17-18] years), 97 (79.5%) were single, and 91 (74.6%) had at least a secondary education level. Retention included 101 participants (82.8%) at 1 week post intervention and 91 (74.6%) at 6-month follow-up. Both IPT arms demonstrated significantly greater reductions in depression than the TAU arm post intervention. Mean (SD) PHQ-9 score decreased from 12.38 (5.90) at baseline to 2.15 (1.94) in the full IPT-G arm (β vs TAU = -5.79; 95% CI, -7.67 to -3.91; P < .001), from 11.58 (4.93) to 3.94 (2.81) in the mini IPT-G arm (β vs TAU = -3.97; 95% CI -5.83 to -2.10; P < .001), and from 11.00 (4.97) to 7.94 (3.71) in the TAU arm. At 6 months, effects were attenuated. Scores in the full IPT-G arm remained significantly lower than in the TAU arm (β = -2.22; 95% CI, -4.25 to -0.18; P = .03) but not in the mini IPT-G arm (β = -1.38; 95% CI, -3.25 to 0.48; P = .15). CONCLUSIONS AND RELEVANCE/UNASSIGNED:In this trial, IPT-G delivered by nonspecialists was feasible, acceptable, and effective. Mini IPT-G improved completion rates, while full IPT-G showed more sustained benefits at follow-up. These findings support task-sharing of mental health interventions for perinatal adolescents in low-resource settings. TRIAL REGISTRATION/UNASSIGNED:Pan African Clinical Trial Registry Identification: PACTR202501888041900.

The dramatic rise in pediatric mental health visits to emergency departments that started in the 1990s continues, reflecting an ongoing youth mental health crisis. There is an urgent need for a comprehensive care continuum with accessible outpatient services capable of identifying and supporting the mental health needs of children regardless of acuity, payor, and geographic setting. A fully realized child mental health continuum of care meets children where they are; adequately funds services from the outpatient clinic to the inpatient unit; delivers evidence-based treatments targeted to reduce mental health symptoms; and supports the development of a skilled behavioral health workforce.

Toxicity of prenatal ethanol leading to fetal alcohol spectrum disorders (FASDs) has been linked to disturbances in retinoic acid (RA) signaling necessary for embryonic development. While ethanol exposure in the postnatal day 7 (P7) mice, which induces immediate neurodegeneration and long-lasting GABAergic cell loss and behavioral deficits, has been used for the third trimester FASD model, involvement of RA signaling in the process has not been well explored. Using RARE-LacZ reporter mice that express β-galactosidase (β-Gal) under the control of retinoic acid response element (RARE), we examined RA signaling activity of the forebrains of P8 and P30 mice with or without P7 ethanol treatment. In all experimental groups, β-Gal was expressed mainly in the hippocampus with the strongest expression in the granule cell layer of dentate gyrus. In addition, β-Gal was expressed in pyramidal neurons and parvalbumin (PV) neurons in CA1-3 pyramidal layer and in astrocytes scattered around the CA1-3 region although PV neurons were only examined at P30 because of the low PV expression at P8. β-Gal was also expressed in the anteroventral/anteromedial (AV/AM) thalamus and the retrosplenial (Rs) and Tbr1-positive (+) layer 6 cortices. β-Gal-expressing PV neurons were also found in the cortex such as Rs, while β-Gal was barely detected in somatostatin neurons in any brain regions examined. Such region and cell specific β-Gal expression was significantly higher in P8 brains than P30 brains in various brain regions. P7 ethanol reduced β-Gal expression in the CA1-3 pyramidal layer, Tbr1 + cortical layer 6, and the AV/AM thalamus at P8 or P30 or both. Although P7 ethanol decreased PV cells in CA2-3 pyramidal layers as reported, it decreased β-Gal+ PV cells more drastically. The active RA signaling found in PV neurons and the effects of P7 ethanol on the signaling suggest that reduced RA signaling by P7 ethanol may disturb PV cell maturation and enhance long-lasting brain abnormalities.

Living in neighborhoods characterized by physical and social disorder (e.g., litter, abandoned buildings, crime) is associated with poorer cognitive functioning. However, much of this work relies on decontextualized laboratory tasks, limiting insight into how everyday environmental experiences shape day-to-day cognitive functioning. Here, we introduce the Neighborhood Errand Task (NET), a novel navigation paradigm designed to approximate memory and information processing during wayfinding within disordered neighborhood contexts. Participants first learned a route through map study and guided practice, then completed navigation trials requiring choices between learned-familiar routes and novel-shortcut routes. Neighborhood disorder was experimentally manipulated via environmental cues and intermittent surprise "robbery" events. A diverse sample of U.S. adults (N = 100) completed the NET alongside self-reports of perceived neighborhood disorder and risky/impulsive behavior. Greater perceived neighborhood disorder was associated with poorer wayfinding in the learned route and shortcut trials, which may reflect differences in information processing, caution, strategy selection, or specific memory processes. Furthermore, inefficient navigation amplified the relationship between perceived neighborhood disorder and engagement in risky/impulsive behavior, suggesting that cognitive inefficiencies and environmental perceptions heighten vulnerability to behavioral dysregulation. By embedding cognition in a realistic, navigable context, the NET highlights how environmental adversity may shape adaptations relevant to survival.