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Autism spectrum disorder [a] (ASD), or simply autism, is a neurodevelopmental disorder "characterized by persistent deficits in social communication and social interaction across multiple contexts" and "restricted, repetitive patterns of behavior, interests, or activities". [11] Sensory abnormalities are also included in the diagnostic manuals ...
Distinguishing between ASD and other diagnoses can be challenging because the traits of ASD often overlap with symptoms of other disorders, and the characteristics of ASD make traditional diagnostic procedures difficult. [2] [3] Autism is associated with several genetic disorders, [4] perhaps due to an overlap in genetic causes. [5]
Twin studies provide a unique opportunity to explore the genetic and environmental influences on autism spectrum disorder (ASD). By studying identical twins, who share identical DNA, and fraternal twins, who share about half of their DNA, researchers can estimate the heritability of autism by comparing the rates of when one twin is diagnosed with autism while the other is not in identical vs ...
Brain sections related to autism. Many causes of autism, including environmental and genetic factors, have been recognized or proposed, but understanding of the theory of causation of autism is incomplete. [1] Attempts have been made to incorporate the known genetic and environmental causes into a comprehensive causative framework. [2]
Monotropic individuals have trouble processing multiple things at once, particularly when it comes to multitasking while listening. For example, some students have trouble taking notes in class while listening to a teacher [ 3 ] and may find it difficult to read a person's face and comprehend what they are saying simultaneously. [ 1 ]
A related theory—enhanced perceptual functioning—focuses more on the superiority of locally oriented and perceptual operations in autistic individuals. [74] Yet another, monotropism, posits that autism stems from a different cognitive style, tending to focus attention (or processing resources) intensely, to the exclusion of other stimuli. [75]
Syndromic autism represents about 25% of the total ASD cases. [4] [5] In most [quantify] cases, its etiology is known. [2] [4] Monogenic disorders are one of the causes of syndromic autism, which in this case are also known as monogenic autism spectrum disorders. They account for about 5% of the total ASD cases.
E–S theory was developed by psychologist Simon Baron-Cohen in 2002, [10] as a reconceptualization of cognitive sex differences in the general population. This was done in an effort to understand why the cognitive difficulties in autism appeared to lie in domains in which he says on average females outperformed males, along with why cognitive strengths in autism appeared to lie in domains in ...