Rett's disorder
Definition
Rett's disorder, which is also known as Rett's syndrome or RS, belongs to a group of childhood disorders known as pervasive developmental disorders(PDDs) or autistic spectrum disorders. It is classified by the mental health professional's handbook (the Diagnostic and Statistical Manual of Mental Disordersor the DSM-IV-TR) as a developmental disorder of childhood. Rett's disorder is characterized by an early-onset slowing of the infant's head growth and a reduction in brainsize, as much as 30%.
Description
RS was first described by an Austrian physician, Andreas Rett, in 1966; prior to 1983,...
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