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Disorders of Childhood - Symptoms - Rett's Disorder
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Symptoms - Rett's Disorder
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Rett's Disorder
Symptoms

All of the following:

  • apparently normal prenatal and perinatal development
  • apparently normal psychomotor development through the first 5 months after birth
  • normal head circumference at birth

Onset of all of the following after the period of normal development:

  • deceleration of head growth between ages 5 and 48 months
  • loss of previously acquired purposeful hand skills between ages 5 and 30 months with the subsequent development of stereotyped hand movements (e.g., hand-wringing or hand washing)
  • loss of social engagement early in the course (although often social interaction develops later)
  • appearance of poorly coordinated gait or trunk movements
  • severely impaired expressive and receptive language development with severe psychomotor retardation

Criteria summarized from:
American Psychiatric Association. (1994). Diagnostic and statistical manual of mental disorders, fourth edition. Washington, DC: American Psychiatric Association.

 

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