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Autismo y retraso mental

The autism is a neurodevelopmental disorder characterized by impaired social interaction, communication (both verbal and non-verbal) and restricted behavior and repetitive.

Parents usually notice signs in the first two years of your child's life. These usually develop gradually, but some children with autism will reach their developmental milestones at a normal pace and then suffer regression.

The controversies surrounding the other causes environmental proposals, for example, the hypothesis of vaccine are biologically implausibles and have been refuted by scientific studies. The diagnostic criteria require that symptoms become evident in early childhood, typically before the age of three.

Autism affects information processing in the brain by altering how nerve cells and their synapses connect and organize; how this occurs is not well clarified.

It is one of the three autism spectrum disorders (ASD); the other two are Asperger syndrome, which lacks delays in cognitive development and language, and pervasive developmental disorder-not otherwise specified (PDD-nos), which is diagnosed when you do not meet all of the criteria for autism or Asperger's syndrome.

Childhood autism and mental retardation

The childhood autism produces alterations intellectuals who are often very difficult to distinguish from mental retardation. Its main features are:

  • The absence of social interaction
  • Alterations deep in the language, not according to the intellectual capacities
  • Insistence on stereotyped behaviors
  • Appear before 30 months of age
  • Resistance to change
  • Inability to anticipate danger

Their iq is usually low, correlacionĂ¡ndose directly with the defects of language. In psychometric tests, the iq profile of autistic child (as opposed to the child with mental retardation) often shows:

  • Dissociation between the verbal IQ and non-verbal, with a superiority on the part of the non-verbal skills
  • The language development does not follow normal milestones
  • Regressions spontaneous in the process of communicative development
  • Dissociations clear between the form and the content of the language and its use in improperly

Children suffering from mental retardation tend to exhibit a delay in language development, but follow the same stages of normal child. Infantile autism and mental retardation come to be related and, in fact, it has been considered that approximately three-fourths of autistic children function as adults with mental retardation


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