Individuals diagnosed with an intellectual disability (ID) share overlapping traits with those diagnosed with both ID and an Autism Spectrum Disorder (ASD). Therefore, the purpose of this study was to determine if caregivers' reports of symptoms of ASD are of value (i.e., when comparing them to clinical diagnoses of ASD) and to determine which…

We examined mothers' resolution of their children's diagnosis of Intellectual Disability (ID) and its link to maternal sensitivity, and we hypnotized that mothers' who are "resolved" will show more sensitivity during their interactions with their children than "unresolved" mothers. We assessed maternal resolution using the Reaction to Diagnosis…

This study was designed to identify items of the ADI-R that allow an early and sensitive identification of children with possible Asperger syndrome (AS). The aim was to obtain an economic short interview suitable for screening purposes. The study was based on data from a clinical sample of 5-18-year-old children and adolescents (mean age 10.9…

Tools to identify toddlers with autism in clinical settings have been recently developed. This study evaluated the sensitivity and specificity of the Child Behavior Check List 1 1/2-5 (CBCL 1 1/2-5) in the detection of toddlers subsequently diagnosed with an Autism Spectrum Disorder (ASD), ages 18-36 months. The CBCL of 47 children with ASD were…

Severe problem behaviors such as self-injury and aggression are frequently observed in young children under age 5 with intellectual and developmental disabilities (IDD). Although early identification of problem behavior is critical to effective intervention, there are few standardized measures available that identify severe problem behavior in…

The Autism Spectrum Quotient (AQ) has been widely used for measuring autistic characteristics in parents of children with autism spectrum disorders (ASD). Nonetheless, its psychometric validity is yet to be justified. This study tested the factor structure of the AQ by means of principal component analysis and confirmatory factor analysis using,…

22q11.2 deletion syndrome (22q11DS) has a complex phenotype with more than 180 characteristics, including cardiac anomalies, cleft palate, intellectual disabilities, a typical facial morphology, and mental health problems. However, the variable phenotype makes it difficult to predict clinical outcome, such as the high prevalence of psychosis among…

To establish which social interactive behaviours predict later psychiatric diagnosis, we examined 180 videos of a parent-infant interaction when children were aged one year, from within the Avon Longitudinal Study of Parents and Children (ALSPAC) cohort. Sixty of the videos involved infants who were later diagnosed with a psychiatric disorder at…

Attention deficit hyperactivity disorder (ADHD) is prevalent in the adult population. The associated co-morbidities and impairments can be relieved with treatment. Therefore, several rating scales have been developed to identify adults with ADHD who may benefit from treatment. No systematic review has yet sought to evaluate these scales in more…

The purpose of this study was to describe the motor, attention and intellectual characteristics of a population-based sample of children first screened for motor impairment and to discuss the recruitment and identification methods employed. A two stage cross-sectional, school-based survey was conducted to screen for children with motor…

Research continues to try and pinpoint the etiological role of particular genes and brain structure in autistic spectrum disorder (ASD), but despite a host of biological, genetic and neuropsychological research, the symptom profile of pervasive developmental disorders (PDDs) are not yet linked to etiological theory. Debate continues around whether…

It has been estimated that people with ID experience the same and possibly higher levels of depression than the general population. Referral to a General Medical Practitioner (GP) for primary care is recommended practice for people with depression and cognitive behavioural (CB) therapy is now an accepted evidence based intervention. A growing body…

Despite increased interest in the role of effortful control (EC) in developmental disorders, few studies have focused on EC in autism spectrum disorders (ASD) and no study so far has directly compared children with ASD and children with ADHD. A first aim of this study was to investigate whether typically developing (TD) boys, boys with ADHD and…

A retrospective cohort study was undertaken to identify risk factors for children at greatest risk of delayed diagnosis of developmental disability. Two thousand four hundred and thirty-nine children were selected for this study due to their participation in the California Early Start (ES) Program in 1998. Comparisons were made among children that…

Prader-Willi syndrome (PWS) is characterized by temper tantrums, impulsivity, mood fluctuations, difficulty with change in routine, skinpicking, stubbornness and aggression. Many studies on behavior in PWS are limited by sample size, age range, a lack of genetically confirmed diagnosis of PWS and inconsistent assessment of behavior. The aim of…