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Mental retardation - Symptom

Symptoms:

  • Continued infantile behavior
  • Decreased learning ability
  • Failure to meet intellectual developmental markers
  • Inability to meet educational demands at school
  • Lack of curiosity

Note: Changes to normal behaviors depend on the severity of the condition. Mild retardation may be associated with a lack of curiosity and quiet behavior. Severe mental retardation is associated with infantile behavior throughout life.

Signs and tests:

  • Abnormal Denver developmental screening test
  • Adaptive behavior score below average
  • Development way below that of peers
  • Intelligence quotient (IQ) score below 70 on a standardized IQ test
  • Reviewed last on: 11/12/2007
  • Rachel A. Lewis, M.D., F.A.A.P., Columbia University Pediatric Faculty Practice, New York, NY. Review provided by VeriMed Healthcare Network.
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