• Marcos T Mercadante, Rutger J Van der Gaag, and Jose S Schwartzman.
• Universidade Presbiteriana Mackenzie, São Paulo, Brasil.
• Rev Bras Psiquiatr. 2006 May 1; 28 Suppl 1: S12-20.

AbstractThe category "Pervasive Developmental Disorders" includes autistic disorder, Asperger's syndrome, Rett's syndrome, childhood disintegrative disorder, and a residual category, named pervasive developmental disorder not otherwise specified. In this review, Rett's syndrome and childhood disintegrative disorder, which are well-defined categories, will be discussed, as well as the not well defined categories that have been included in the Pervasive Developmental Disorder Not Otherwise Specified group. Different proposals of categorization have been created, some of which based on descriptive phenomenological approach, and others based upon other theoretical perspectives, such as neuropsychology. Current proposals are presented and discussed, followed by critical appraisals on the clinical advantages and disadvantages of these concepts.

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