Attention Deficit Hyperactivity Disorder is a common neurodevelopmental disorder. This article examines attention-deficit/hyperactivity disorder. The focus is on the Diagnostic Criteria in DSM-5, age of onset, gender differences diagnostic features, prevalence, differential diagnosis, risk and prognostic factors and comorbidity are discussed.

Accurate representation of autism spectrum disorder (ASD) in fragile X syndrome (FXS) is necessary for the field. We examined classifications of ASD using three approaches--Autism Diagnostic Observation Schedule (ADOS-2; Lord et al. 2012), Childhood Autism Rating Scale (CARS2-ST; Schopler et al. 2010), and Vineland Adaptive Behavior Scales…

Attention Deficit Hyperactivity Disorder is a common neurodevelopmental disorder. This article examines attention-deficit/hyperactivity disorder. The focus is on the Diagnostic Criteria in DSM-5 ["Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition"], age of onset, gender differences diagnostic features, prevalence,…

Purpose: Children with childhood apraxia of speech (CAS) evidence a high rate of co-occurring fine and gross motor deficits. This clinical focus article reports a preliminary investigation of characteristics of developmental coordination disorder (DCD), a neurodevelopmental disorder categorized by poor motor proficiency and functional limitations,…

Changes to the DSM-5 Autism Spectrum Disorder (ASD) criteria raised concerns among parents and practitioners that the criteria may exclude some children with Pervasive Developmental Disorder (PDD). Few studies have examined DSM-5 sensitivity and specificity in children less than 5 years of age. This study evaluated 185 children aged 20-55 months…

The article examines issues related to identification of children with autism spectrum disorders (ASDs). The focus is on the Diagnostic Criteria in DSM-5 diagnostic features, associated features supporting diagnosis, and prevalence are discussed.

The article examines issues related to identification of children with autism spectrum disorders (ASDs). The focus is on the Diagnostic Criteria in DSM-5 diagnostic features, associated features supporting diagnosis, and prevalence are discussed.

Over years, the terms used to identify intellectual disability, which was previously known as "mental retardation," have changed. This has been due to the heavy stigma associated with bearing its label (Tassé & Mehling, in press). This article examines defining and determining intellectual disability (intellectual developmental…

Over years, the terms used to identify intellectual disability, which was previously known as "mental retardation," have changed. This has been due to the heavy stigma associated with bearing its label (Tassé & Mehling, in press). This article examines defining and determining intellectual disability (intellectual developmental…

Recognizing the diagnostic challenges that clinicians face when attempting to arrive at an accurate psychiatric diagnosis for individuals with intellectual and developmental disabilities (IDD) co-occurring with mental illness (MI), in 2007 the National Association for the Dually Diagnosed (NADD), in association with the American Psychiatric…

We carried out a psychometric assessment of the Social Communication Questionnaire (SCQ) and the Social Responsiveness Scale (SRS-2) in fragile X syndrome (FXS), relative to clinician DSM5-based diagnosis of autism spectrum disorder (ASD) in FXS. This was followed by instrument revisions that included: removal of non-discriminating and/or low face…

Dyslexia is a difficulty in learning to decode (read aloud) and to spell. DSM5 classifies dyslexia as one form of neurodevelopmental disorder. Neurodevelopmental disorders are heritable, life-long conditions with early onset. For many years, research on dyslexia proceeded on the basis that it was a specific learning difficulty -- specific meaning…

Autism spectrum disorder is a neurodevelopmental condition characterized by social communication difficulties and restricted, repetitive behaviors. Autism spectrum disorder is highly co-morbid with other neuro-psychiatric disorders such as attention deficit hyperactivity disorder, anxiety, and depression. However, research on post-traumatic stress…

Children with attention-deficit/hyperactivity disorder (ADHD) may also have undiagnosed developmental coordination disorder (DCD). Prevalence rates of the ADHD/DCD comorbidity are estimated between 30% and 50%. Given the significant impact these disorders have on a child's occupational performance, lack of detection of DCD is of concern.…

Little is known about Autism Spectrum Disorder (ASD) in persons over age 50. In a retrospective, naturalistic review of 74 individuals aged 30 and older meeting DSM-5 criteria for ASD, the point prevalence of behavioral and neuropsychiatric symptoms (BNPS) declined significantly for 12 of 13 BNPS over a mean of 25 years while many other features…