Autism Spectrum Disorders Amy Lemelman & Fred Biasini PY 415/783 Spring 2014
Some Autism Myths People with autism are savants Rain man Temple Grandin People with autism cannot form close relationships People with autism can be cured There is an autism epidemic
Prevalence 1 out of 150 (CDC, 2006) 1 out of 110 (CDC, 2009) 1 out of 88 (CDC, 2012) 1 out of 50 (NSHC, 2013)? 1 out of 68 (CDC, 2014) Between 3:1 and 4:1 male to female ratio 1 out of 70 boys 1 out of 315 girls Epidemic? More public awareness Revised criteria in 1994 includes wider range of individuals Possibly misdiagnosis
History Autism à derived from the Greek word for self- absorption Eugene Bleuler used the term “autism” to describe a symptom of schizophrenia (1910) Dr. Leo Kanner first described autism syndrome in 1943 Dr. Hans Asperger described Asperger’s Disorder in 1944 (1938, Autistic Psychopaths)
Brief History of Diagnosis DSM I – 1952 Schizophrenic Reaction – Childhood Type DSM II – 1968 Schizophrenia – Childhood Onset DSM III – 1980 Infantile Autism DSM III-R – 1987 Autistic Disorder DSM IV (1994) & DSM IV-TR (2000) Pervasive Developmental Disorder DSM V (2013) Autism Spectrum Disorder
The PDD Umbrella Childhood Disintegrative Disorder Rett’s Syndrome Autistic Disorder Pervasive Developmental Disorder Asperger’s Syndrome
Diagnostic Criteria for Autistic Disorder DSM IV– was a TRIAD of Symptoms DSM-IV-TR identifies three categories of behavior in which individuals with autism show impairments Social Interaction Communication Restricted, Repetitive, and Stereotyped Patterns of Behavior
How did the disorders differ? Autistic Disorder Asperger’s Disorder Pervasive Developmental Disorder Childhood Disintegrative Disorder Rett’s Disorder
Autism vs Asperger’s Autistic Disorder Six symptoms with at least two from social interaction and one each from communication and restricted/stereotyped behaviors Behaviors exist before age 3 Asperger’s Disorder Three symptoms with at least two related to social interactions and one to habitual behaviors Language development grossly within normal limits May not be diagnosed until school age
Childhood Disintegrative Disorder and Rett’s Disorder CDD Development proceeds typically until 3-5 yrs, when skills in all domains regress
You've reached the end of your free preview.
Want to read all 28 pages?
- Spring '15
- Pervasive developmental disorder, autism spectrum, broader autism phenotype