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More about Pervasive Developmental Disorders:
Definition Causes and symptoms Diagnosis Treatment Prognosis Prevention Resources |
The causes of these disorders is unknown although brain structure abnormalities, genetic mutation, and alterations in brain function are believed to all play a role. Still, no single brain abnormality or location has been connected to a cause. Rett's syndrome demonstrates the strongest evidence that it is caused by the mutation of a gene. Research with twins has indicated that genetics may also play a role in the cause of autism. A number of neurological conditions, such as convulsions, are commonly found to accompany these disorders.
— Donald G. Barstow, RN
