Publications by authors named "Elizabeth A Harvey"

Article Synopsis
  • * The study found that there is limited representation of Black youth with ADHD in existing research, with many studies relying on comparative race approaches and utilizing secondary data.
  • * The authors recommend increasing research, funding, and publication efforts centered on Black youth with ADHD to address health disparities and enhance understanding of their specific needs.
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Adults' judgments of children's behaviors play a critical role in assessment and treatment of childhood psychopathology. Judgments of children's psychiatric symptoms are likely influenced by racial biases, but little is known about the specific racial biases adults hold about children's psychiatric symptoms, which could play a critical role in childhood mental health disparities. This study examined one form of such biases, racial stereotypes, to determine if White and Black adults hold implicit and explicit racial stereotypes about common childhood psychopathology symptoms, and if these stereotypes vary by child gender and disorder type.

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This study examined racial/ethnic differences in the relations between three dimensions of parenting practices (harsh, lax, and warm parenting) and children's externalizing behaviors across European American, African American, and Latinx families. Participants included 221 mothers who identified as African American ( = 32), Latina ( = 46), or European American ( = 143). Mothers' self-rated and observer-coded harshness, laxness, and warmth, and their ratings of their 3-year-old children's externalizing behaviors (hyperactivity, aggression) were analyzed.

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Childhood intimate partner violence (IPV) exposure increases the likelihood of internalizing and externalizing problems. There is substantial variability in children's outcomes following IPV exposure, but the reasons behind this are unclear, particularly among preschool-age children. The current study aimed to examine the direct and indirect effects of IPV on preschoolers' mental health through parent factors (parenting and parental depression), exploring child temperament as a potential moderator of the relation between IPV and child outcomes.

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Article Synopsis
  • - This study explored how emotion socialization and brain activity during frustration can predict difficulties in emotion regulation (ER) in children, particularly focusing on those with hyperactivity/impulsivity (H/I) symptoms.
  • - Researchers assessed 68 children aged 4-7 on frustration-related neural activity and emotion socialization at the start, then evaluated their ER difficulties about 1.5-2 years later through various reports and observations.
  • - Findings indicated that children with H/I symptoms showed a stronger connection between these predictors and ER difficulties, suggesting that good emotion socialization could help mitigate risks for ER issues, particularly in those with concerning neural activity patterns.
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Objective: ADHD and ODD are commonly co-occurring, but often studied individually. This study evaluated common trajectories of these disorders and explored how they co-develop in early childhood.

Method: Community parents ( = 273) completed online surveys about their 2-year-old.

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Background: Intra-dialytic hypotension (IDH) is the most common serious adverse event in paediatric haemodialysis (HD). Repeated IDH results in chronic multi-organ damage and increased mortality. At the Hospital for Sick Children, Toronto, retrospective data from all in-centre HD sessions revealed frequently occurring IDH events (16.

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Unlabelled: Herein, we assess the cost-effectiveness of a multidisciplinary clinic for children with urinary stones. The clinic's primary goals were to decrease unnecessary visits, imaging, and costs while optimizing the quality of care.

Methods: Between October 2012 and January 2016, children with complex stone disease, previously treated in urology and/or nephrology clinics, were seen at a triannual pediatric combined stone clinic.

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Introduction: Vancomycin is a common antibiotic used to treat hemodialysis (HD) or hemodiafiltration (HDF)-related infections in pediatric patients, but optimal dosing remains unknown. This is the first observational study to characterize the pharmacokinetics and evaluate dosing of vancomycin in this population.

Methods: Eligible patients received IV vancomycin 10 mg/kg per dose postdialysis followed by a series of serum vancomycin concentrations collected before, immediately after, 1 hour after, and 4 hours after dialysis.

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Attention-deficit hyperactivity disorder (ADHD) is a common neurodevelopmental disorder that shares a high comorbidity with anxiety disorders. However, the early development of comorbid ADHD and anxiety symptoms is not well-understood. In this study, the bidirectional relation between ADHD and anxiety symptoms was examined by testing two models of the development of ADHD and anxiety comorbidity: an anxiety effects model, which posits that anxiety symptoms contribute to the development of ADHD symptoms, and an ADHD effects model, which posits that ADHD symptoms contribute to the development of anxiety symptoms.

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We examined behavioral and neural markers of emotion competence in young children as predictors of psychopathology, and as mediators of the relation between hyperactivity/impulsivity (H/I) and psychopathology. At Time 1 (T1), children ( = 49; ages 4-7 years) with and without H/I symptoms completed a frustration task. Frustration, observed emotion, and neural activity (P1, N2, and P3 event-related potentials) were measured.

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The current study examined whether a variety of dimensions of executive function predicted trajectories of emotion dysregulation among preschool children with behavior problems. This study focused on 199 3-year-old children with parent-reported behavior problems who took part in a larger longitudinal study. Results revealed that response inhibition and working memory were not predictive of later emotion dysregulation.

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Previous research suggests there may be racial differences in how adults rate children's ADHD behavior. Differences in perceptions of Black parents and White teachers could have implications for ADHD diagnosis of Black children. This study compared ADHD ratings of Black parents to White teachers, and examined factors that may explain racial differences.

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Children with ADHD often have sleep complaints and cognitive deficits. The aim of this pilot study was to determine whether sleep extension improves inhibitory control, a primary cognitive deficit in ADHD. Children with ( = 11) and without ( = 15) ADHD participated in a within-subject sleep extension intervention that targeted nocturnal sleep duration.

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Background: Wilson disease (WD) is a disorder of copper metabolism that results in accumulation of copper in tissues. In acute WD, patients present with fulminant hepatic failure, encephalopathy, and hemolytic anemia due to copper release from necrotic hepatocytes. Many will require life-saving liver transplantation.

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A 16-year-old boy with hypertrophic cardiomyopathy, gait abnormalities, and balance problems was found to have Friedreich ataxia. Though Friedreich ataxia typically renders patients areflexic, this child had upper motor neuron findings of spasticity in both lower extremities, with crossed adductors, and 4+ deep tendon reflexes at the patella and Achilles bilaterally. This unusual presentation of an uncommon genetic disorder led to uncertainty of the patient's true diagnosis until genetic testing confirmed that he had 2 alleles with the Friedreich ataxia mutation.

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The purpose of this study is to examine the psychometric properties of the 18 () symptoms of attention deficit/hyperactivity disorder (ADHD) in 2-year-old children. ADHD is typically diagnosed in elementary school, but research suggests that many children with ADHD first show symptoms during the toddler years. An important first step in identifying toddlers who are at high risk for developing ADHD is to better understand the properties of symptoms of ADHD in young children.

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The present study examined the bidirectional relation between family functioning and attention-deficit/hyperactivity disorder (ADHD) symptoms across the preschool years. Participants included 197 (110 boys) 3-year-old children ( = 44.14 months,  = 3.

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Reciprocal relations between children's conduct disorder (CD) symptoms and parenting behaviors were examined across the preschool years. Participants were 199 children (M = 44.26 months, SD = 3.

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Children with attention-deficit/hyperactivity disorder (ADHD) often experience emotional dysregulation. Dysregulation can arise from heightened attention to emotional stimuli. Emotional attention biases are associated with a number of adverse socioemotional outcomes including reward sensitivity and externalizing behaviors.

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Theory and research suggest that parents' reactions to children's emotions play a critical role in teaching children effective emotion regulation (ER) skills, but no studies have directly examined the role that parent emotion socialization plays in the development of ER in children with ADHD. Gaining insight into the causes of impaired ER, particularly in youth with ADHD who are known to have poor ER, has important theoretical and translational significance. The present study is the first to longitudinally examine whether emotion socialization predicts later physiological and adult-reported measures of ER in children with and without ADHD.

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Background: Childhood chronic kidney disease (CKD) and dialysis are associated with increased long-term cardiovascular risk. We examined subclinical alterations in myocardial mechanics longitudinally in children with CKD, during dialysis, and following renal transplantation.

Methods: Forty-eight children with CKD (stage III or higher) who received kidney transplants from 2008 to 2014 were included in a retrospective study and compared to 192 age- and sex-matched healthy children.

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Sleep disturbances impair cognitive functioning in typically developing populations. Children with attention-deficit/hyperactivity disorder (ADHD), a disorder characterized by impaired inhibitory control and attention, commonly experience sleep disturbances. Whether inhibitory impairments are related to sleep deficits in children with ADHD is unknown.

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Oppositional defiant disorder (ODD) is a commonly diagnosed childhood behavior disorder, yet knowledge of relations between ODD and early neuropsychological functions, particularly independent of attention deficit/hyperactivity disorder (ADHD), is still limited. In addition, studies have not examined neuropsy chological functioning as it relates to the different ODD symptom dimensions. Structural equation modeling was used to investigate how preschool neuropsychological functioning predicted negative affect, oppositional behavior, and antagonistic behavior symptom dimensions of ODD in 224 six-year-old children, oversampled for early behavior problems.

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Data are presented from two samples of preschool children to evaluate the reliability, concurrent validity, and predictive validity of the ADHD, ODD, and CD sections of the Diagnostic Interview Schedule for Children, Fourth Edition (DISC-IV). Information was obtained from a community sample of 128 children ( = 53.16 months; 63 girls) and from a sample of 72 externalizing children ( = 45.

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