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Autistic Spectrum Disorders
Incidence: 1 in 31 to 45: over 2 million people today have some level of Autism
4 times more common in boys than girls
Autistic Spectrum Disorders
Different theories of causation
History of the cause
Physchological-psychoanalytic approach- inability to form affective contact with people based on coldness of parents- no supporting data- now considered barbaric
Autistic Spectrum Disorders
Different theories of causation
Current theories
Variables that appear to be linked
Hereditary: can run in families
Genetic: no specific gene found as of yet
Medical problems: seems to be some medical conditions that have a higher incidence of autism
Fragile X
Congenital Rubella Syndrome
Autistic Spectrum Disorders
Behavioral Characteristics (Physical)
Gaze aversion-may resist attempts to make them look at another
Temper tantrums may be self-abusive or aggressive and triggered by change in environment- hard to calm
Hypo-vs hypersensitivity to environment-inconsistant response to stimuli
Autistic Spectrum Disorders
Behavioral Characteristics (Verbal)
Mutism/Non-verbal- periods of total silence and production of meaningless sounds- 33% remain mute and not likely to speak unless they begin speaking by age 5 (some say age 8)
Echolalia- meaningless repetition of someone else's words
Autistic Spectrum Disorders
Social cognition
Good motor skills, excellent rote memory, good discrimination of concrete visual-spatial relations
Autistic Spectrum Disorders
Language components
Theory of mind and meta-abilities
Typically Developing Children (TDC) learn that other children’s actions are related to what they think and not to actual conditions and are able to learn to take other’s view
Autistic Spectrum Disorders
Language components (Pragmatics)
largest area of language deficit independent of severity of Autism
Autistic Spectrum Disorders
Language components (Phonology)
Phonology develops in normal sequence and often better than other componetns usually have least difficulty compared other areas of languauge
Autistic Spectrum Disorders
Language components (Written Language)
Hyperlexia
Highly developed word-recognition skills with little or no comprehension.