What does APC stand for? (self.theevilwithin) submitted 3 months ago by flesjewater1
Although they share many of the same symptoms, attention deficit hyperactivity disorder (ADHD) and autism are very different disorders.tâs estimated that ADHD affects 3 to 5 percent of kids in the United States. In contrast, autism is a developmental disorder that affects the way a person communicates and interacts with others.
Autism vs Down Syndrome. Autism and Down syndrome are well known causes of mental retardation. There are other causes of mental retardation, as well. However, these two are important because Down syndrome represents the pure genetic end of the spectrum while autism represents the purely psychological end. Even though some studies have suggested a genetic link to autism, it remains very doubtful to this date.