Rett’s disorder
It
is also called as Cerebroatrophic hyperammonemia . A rare genetic postnatal
neurological disorder of the grey matter of the brain that almost
exclusively affects females.
• Deterioration
over several months of intellectual, social, and language function
• Occur
in 3- and 4-year-olds with previously normal functions.
• Closely
resemble children with autistic disorder.
Asperger’s disorder
Asperger's disorder is characterized by
impairment in social interaction and restricted interest without any delay in
language, cognitive development, or age-appropriate self-help skills.
Childhood disintegrative
disorder
Childhood disintegrative disorder is
characterized by marked regression in several areas of functioning after at
least 2 years of apparently normal development.
Childhood disintegrative disorder,
also called Heller's syndrome and disintegrative psychosis
Further suggested reading - WEBMD
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