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Effect of methylphenidate exposure on glutamate and glutamate-related metabolites in patients with ADHD: a systematic review

Dysfunctional glutamatergic neurotransmission has been implicated in the underlying pathogenesis of Attention Deficit Hyperactivity Disorder (ADHD). The psychostimulant methylphenidate (MPH), which is used as a first line treatment for ADHD, has been shown to have both acute and chronic effects on prefrontal cortex glutamatergic afferents. Animal studies have also identified an effect of MPH and glutamate in prefrontal areas. Despite this there are ongoing questions as to the extent and direction of this effect, as well as its impact on other neurobiological processes. 

Prevalence of attention deficit hyperactivity disorder/hyperkinetic disorder of pediatric and adult populations in clinical settings: a systematic review, meta-analysis and meta-regression

Attention-Deficit/Hyperactivity Disorder (ADHD)/Hyperkinetic Disorder (HD) is linked to increased risks of morbidity, comorbidity and mortality, with higher prevalence in clinical populations. The differential prevalence of ADHD/HD across adult and pediatric clinical populations, influenced by factors such as time trends, sex, age, geographic regions, and comorbidities, has not been systematically assessed.

The Promise of Electroencephalography for Advancing Diagnosis and Treatment in Neurodevelopmental Disorders

Neurodevelopmental disorders (NDDs), such as autism spectrum disorder (ASD), attention-deficit/hyperactivity disorder, and intellectual disability (ID), commonly emerge during early development and impact functioning across cognitive, social-emotional, communication, and sensorimotor domains.

New screening tool for FASD and ADHD in children

The Kids is trialling a new tool for earlier and easier screening of FASD and ADHD in children, using cutting-edge eye-tracking technology developed by the Kids Brain Health Network in Canada.

Genome-Wide Analyses of Vocabulary Size in Infancy and Toddlerhood: Associations With Attention-Deficit/Hyperactivity Disorder, Literacy, and Cognition-Related Traits

The number of words children produce (expressive vocabulary) and understand (receptive vocabulary) changes rapidly during early development, partially due to genetic factors. Here, we performed a meta-genome-wide association study of vocabulary acquisition and investigated polygenic overlap with literacy, cognition, developmental phenotypes, and neurodevelopmental conditions, including attention-deficit/hyperactivity disorder. 

Harmonization of SDQ and ASEBA Phenotypes: Measurement Variance Across Cohorts

Harmonizing the scores obtained by different instruments that measure the same construct enable researchers to combine them in one analysis. An important step in harmonization is checking whether there is measurement invariance across populations.

Early Intervention Delivery Methods for New Zealand Children with Autism: Current Practices Versus Parental Preferences

Little is known about parent preferences regarding delivery methods of early interventions. This research examined, through parent report, the current and preferred delivery methods of seven common educational early interventions accessed by New Zealand children with autism spectrum disorder.

Co-occurring Neurodevelopmental Conditions in Children: Advocating for Transdiagnostic Approach to Assessments

Approximately 8% of all children experience developmental and mental health conditions. Similarities in characteristics across neurodevelopmental conditions-such as difficulties in communication and language, social interaction, motor coordination, attention, activity regulation, behavior, mood, and sleep-make it challenging to attribute these characteristics exclusively to specific diagnoses and assessments. The purpose of this study was to identify symptomatic domains across neurodevelopmental conditions in children and to explore dimension reduction for transdiagnostic assessment. 

Parent-reported Areas of Greatest Challenge for their ADHD and/or Autistic Children

This study aimed to understand how parents describe the most challenging behaviors exhibited by their children diagnosed with autism and/or ADHD, how those behaviours impact their family, and whether challenges are directly related to the core characteristics of these conditions.