Pervasive Developmental Disorders in Young Children

Trends in Autism

“…In recent years there has been a great deal of concern about a possible increase in the prevalence of autistic spectrum disorders (14). Although studies have shown an increase, during these last twenty years diagnostic criteria and definition have also changed.…”

Epigenetics in congenital diseases and pervasive developmental disorders

“…If so, such an epigenetic event induced by an environmental factor in infancy may contribute to the occurrence of pervasive developmental disorders. Hyman et al [31] and Baird et al [32] have reported that the rates of pervasive developmental disorders and those of autism have recently increased. There is also increasing evidence that behavioral and educational interventions with young patients may improve developmental and behavioral outcomes and that basic deficits in play and communication may be therapeutically modified [31].…”

“…Hyman et al [31] and Baird et al [32] have reported that the rates of pervasive developmental disorders and those of autism have recently increased. There is also increasing evidence that behavioral and educational interventions with young patients may improve developmental and behavioral outcomes and that basic deficits in play and communication may be therapeutically modified [31]. Therefore, when we fully understand the role of the epigenetic mechanism in pervasive developmental disorders, we will be able to identify associated environmental factors and establish an epigenetics-oriented new therapy.…”

Using Computer-Presented Social Stories and Video Models to Increase the Social Communication Skills of Children With High-Functioning Autism Spectrum Disorders

“…During the past decade, the number of children and youth on the autism spectrum has increased approximately 173%, making it the fastest growing developmental disability in the United States (Autism Speaks, 2008). A large percentage of this substantial increase may be due to increased identification and diagnosis of children with HFA/AS (Hyman, Rodier, & Davidson, 2001). In support of this view, the Centers for Disease Control and Prevention (CDC) reported a prevalence rate for autism of 40 per 10,000 and up to 67 per 10,000 if children with higher functioning abilities and AS were included in the figures (CDC, 2000).…”