Is Rett syndrome a subtype of pervasive developmental disorders?
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چکیده
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Is Rett syndrome a subtype of pervasive developmental disorders?
The author reviews the issue on whether Rett syndrome (RS) is a subtype of pervasive developmental disorders (PDDs). More than 200 articles of RS have been published in the last 10 years. Internal and external validities of RS have been established by several independent studies. There remains the question whether RS presents clinical features that meet the total criteria for PDDs. The availabl...
متن کاملAutism and pervasive developmental disorders.
The quantity and quality of research into autism and related conditions have increased dramatically in recent years. Consequently we selectively review key accomplishments and highlight directions for future research. More consistent approaches to diagnosis and more rigorous assessment methods have significantly advanced research, although the boundaries of the 'broader phenotype' remain to be ...
متن کاملPervasive Developmental Disorders: Indian Scene
Pervasive developmental disorders (PDDs) are characterized by slow, limited and atypical developmental processes with onset in the early years of life. The condition leads on to disabilities in virtually all the psychological and behavioral sectors with prominent disturbances in social, communicative and cognitive spheres. PDDs include the prototypic Childhood autism, Rett’s syndrome, Childhood...
متن کامل[Autism and pervasive developmental disorders].
OBJECTIVE To review the current knowledge on neurobiological aspects of autism and pervasive developmental disorders, as well as to provide pediatricians with up to date information on diagnosis and treatment of autism. SOURCES OF DATA Review of MEDLINE and Internet. SUMMARY OF THE FINDINGS Autism is the 3rd developmental disorder, with an incidence of 40 to 130/100,000 individuals. Diagnos...
متن کاملPervasive developmental disorders: a 10-year review.
OBJECTIVE To summarize recent advances about the nature, diagnosis, and treatment of pervasive developmental disorders. METHOD Review of Medline databases, books, and book chapters published between July 1989 and November 1999. RESULTS Clinical and genetic studies support expansion of the concept of autism to include a broader spectrum of social communication handicaps. The prevalence of au...
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ژورنال
عنوان ژورنال: Journal of Autism and Developmental Disorders
سال: 1992
ISSN: 0162-3257,1573-3432
DOI: 10.1007/bf01046327