PSYCH 2AP3 Lecture Notes - Lecture 3: Fusiform Gyrus, Fusiform Face Area, Intellectual Disability

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Intellectual and or language impairment: motor deficits, unusual gait, balance, clumsiness, self-injury, disruptive or challenging behaviours, prone to anxiety, depression (adolescents or adults) Prevalence: yeargin-allsopp et al (2003): 35/10000, cdc (2007): 67/10000 * 8 year olds, autism ontario: 70/10000, cdc (2008): 113/10000 , nedsac (2012): 113/10000, kim et al (2011): 264/10000, dsm-5 (2013): 100/10000. Increased prevalence : between 1966-1993: 5/10000, between 1994-2004: 13/10000, california- 270% increase. Increased awareness: earlier diagnoses, changes in diagnostic practice, diagnostic substitution. Environmental toxins: argument of autism replacing intellectual disability label. Intellectual disability: 40-50: general intellect: 70%+ have intellectual disability, language, abstract reasoning is bad, visuo-spatial processing, attention to detail and rote memory is good, savant abilities, mathematics, esp. rapid calculation, music, calendar calculations. Motor development problems: 60%- dysdiadochokinesia trouble with rapid alternating movement, 33%- problems with gait or balance, 15%- abnormal muscle tone, 5%- abnormal reflexes, 5%- abnormal motor coordination impaired finger, heel tapping, rigidity, tremors.

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