Rett syndrome (RTT) is a pervasive development disorder, mainly caused by mutations in the methyl-CpG binding protein 2 (MeCP2) gene.
The instrument has sufficient to good internal consistency, test retest stability, interrater-reliability, and discriminates between normal children and children with a pervasive development disorder, which are known to display deficits in this cognitive domain [ 17].
I speak as the mother of a child with pervasive development disorder.
Any major neurological disorders, a diagnosis of schizophrenia, pervasive development disorder, epilepsy, mental retardation or other brain disorders were excluded.
The survey examined records at health clinics and schools for evidence that children were suffering from either full-fledged autism, Asperger syndrome, or a related disorder known as pervasive development disorder.
And that's how we have considered the potential damage enabled by the most powerful and pervasive development in generations: a sunburn.
The exclusion criteria were: cases with any evidence of major neurological conditions or a primary diagnosis of schizophrenia, affective disorder, pervasive development disorder, or epilepsy.
In a retrospective study of eight aggressive preschoolers without pervasive development disorder and comorbid diagnoses of attention deficit hyperactivity, bipolar, intermittent explosive and anxiety disorders, a risperidone treatment from 1 to 10 months in combination with therapy was effective in controlling aggression [ 45].
The term pervasive development disorder (PDD) is often used as a broader diagnostic descriptor, to encompass not only all ASDs, but also PDD-not-otherwise-specified (PDD-NOS or atypical autism), Rett disorder and childhood disintegrative disorder [14].
Mental disorders that pose a significant concern include learning disorders, hyperkinetic disorders (ADHD), depression, psychosis, pervasive development disorders, attachment disorders, anxiety disorders, conduct disorder, substance abuse and eating disorders.
Although this is the most severe disorder of the autism spectrum, it constitutes only a part of autistic spectrum disorders; specifically children with Asperger's syndrome and other pervasive development disorders were not studied.
