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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]
One study found significant improvements in ADHD-like symptoms, aggression, social problems and thought problems in autistic children who underwent adenotonsillectomy for sleep apnea. [65] Sleep problems in autism have been linked in a study to brain changes, particularly in the hippocampus, though this study does not prove causation. [ 66 ]
[31] [non-primary source needed] Many of the children who were later found not to meet ASD diagnosis criteria then received diagnosis for another developmental disorder. Most common was ADHD, but other diagnoses included sensory disorders, anxiety, personality disorder, or learning disability.
Autism spectrum disorder (ASD) can be classified into two categories: "syndromic autism" and "non-syndromic autism". Syndromic autism refers to cases where ASD is one of the characteristics associated with a broader medical condition or syndrome, representing about 25% of ASD cases. The causes of syndromic autism are often known, and monogenic ...
[78] [79] Learning disabilities have been found to occur in about 20–30% of children with ADHD. Learning disabilities can include developmental speech and language disorders, and academic skills disorders. [80] ADHD, however, is not considered a learning disability, but it very frequently causes academic difficulties. [80]
Autism Spectrum Disorder is a developmental disability that stems from differences in the brain. According to the Centers for Disease Control and Prevention (CDC) , known causes are often genetic ...
Some children with communication disorders have difficulty understanding simple directions or cannot name objects. [4] Most children with communication disorders can speak by the time they enter school, however, they continue to have problems with communication. [4] School-aged children often have problems understanding and formulating words. [4]
The hallmark features of the syndrome are intellectual disability, global developmental delays, global motor planning delays, and autism spectrum disorder (ASD) or autistic features. Although ADNP syndrome was only identified in 2014, it is projected to be one of the most frequent single-gene causes of ASD.