Research Supports Females With Asd Display More Severe Symptoms

1654 Words Dec 12th, 2014 null Page
Research supports that females with ASD display more severe symptoms (Nydén et al., 2000), which could support the idea that both X-chromosomes in females have to be mutated in order for females to develop the disorder. Because the females that are diagnosed with ASD tend to be classified as low functioning more often than males, females require more abnormalities in their genes in order to manifest the symptoms of ASD (Szatmari et al., 2012). In research that looks at family genetic history of ASD, it was found that females with ASD have more first-degree relatives affected by the disorders than males do. Because the family history shows more people affected by the disorder, this reveals that in the females’ families there is more of a genetic accountability for the disorder (Pickles et al., 2000). When researchers looked closely at families in which there was more than one person suffering with the disorder, the males that were not diagnosed with disorder did show some characteristic signs of autism (although mild and not fitting of the diagnostic criteria), while the unaffected females in the families did not display those signs (Constantino et al., 2010).
Another theory that explains the prevalence discrepancy is the elevated presence of certain hormones in prenatal development. Research has compared the levels of fetal testosterone to the number of autistic traits reported by parents on the Childhood Autism Spectrum Test (CAST) and the Child Autism Spectrum Quotient…

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