Lesson 11 Autism Spectrum Disorder

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Presentation of Theoretical Construct

Reading: Chapter 10/7
 
 

Lecture Information:  Asperger’s Syndrome

                                                        i.      Autism is classified as a neuro-developmental disorder that manifests itself in markedly abnormal social interaction, communication ability, patterns of interests, and patterns of behavior. Although the specific etiology of autism is unknown, many researchers suspect that autism results from genetically mediated vulnerabilities to environmental triggers. While there is disagreement about the magnitude, nature, and mechanisms for such environmental factors, researchers have found seven genes prevalent among individuals diagnosed as autistic. Some estimate that autism occurs in as many as one American child in 166, however the National Institute of Mental Health gives a more conservative estimate of one in 1000[1]. For families that already have one autistic child, the odds of a second autistic child may be as high as one in twenty. Although autism is about 3 to 4 times more common in boys, girls with the disorder tend to have more severe symptoms and greater cognitive impairment. Diagnosis is based on a list of psychiatric criteria, and a series of standardized clinical tests may also be used. Another view of these disorders is that they are on a continuum known as autistic spectrum disorders. A related continuum is Sensory Integration Dysfunction, which is about how well we integrate the information we receive from our senses. Autism, Asperger's syndrome, and Sensory Integration Dysfunction are all closely related and overlap.

                                                   ii.      Asperger's Disorder is a milder variant of Autistic Disorder.   Both Asperger's Disorder and Autistic Disorder are in fact subgroups of a larger diagnostic category.  This larger category is called either Autistic Spectrum Disorders, mostly in European countries, or Pervasive Developmental Disorders ("PDD"), in the United States.  In Asperger's Disorder, affected individuals are characterized by social isolation and eccentric behavior in childhood. There are impairments in two-sided social interaction and non-verbal communication. Though grammatical, their speech is peculiar due to abnormalities of inflection and a repetitive pattern. Clumsiness is prominent both in their articulation and gross motor behavior. They usually have a circumscribed area of interest which usually leaves no space for more age appropriate, common interests. Some examples are cars, trains, French Literature, door knobs, hinges, cappuccino, meteorology, astronomy or history.  The name "Asperger" comes from Hans Asperger, an Austrian physician who first described the syndrome in 1944.  An excellent translation of Dr. Asperger's original paper is provided by Dr. Uta Frith in her Autism and Asperger Syndrome.

 


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