No. The descriptions of the autism spectrum disorders are such that you cannot have more than one. However, with more information, the diagnosis might change from one autism spectrum disorder to another.
A person with an autism spectrum disorder can have other conditions or disorders, such as ADHD, epilepsy, or bipolar disorder.
It is possible to have multiple mental disorders at the same time. In fact there are several disorders which have a tendency to be co-morbid (multiple diseases present) such as Bipolar disorder and depression, because there is seems to a genetic cause to the disorder in some cases.
I have not seen any studies on whether twins are more likely to have an autism spectrum disorder than single-birth children. It is possible that no one has done research on this. If one identical twin has an autism spectrum disorder, there is approximately a 90% chance that the other identical twin will. They might not have the same autism spectrum disorder or they might have the same disorder at different levels of severity. Many studies show the chance that they both have it if one twin does as somewhere between 82% and 97%. If the twins are fraternal (non-identical) twins and one has an autism spectrum disorder, the other has about the same chance of having an autism spectrum disorder as non-twin siblings do, which is greater than the chance of having an autism spectrum disorder in a family that does not have any history of it.
PDD is an acronym for pervasive developmental disability, which is a description of a type of developmental disorder. It means the same as autism spectrum disorder. It encompasses five conditions: autism, Asperger's Syndrome, Rett Syndrome, childhood disintegrative disorder, and PDD-Not Otherwise Specified. See the related question below "What are autism spectrum disorders?" for more details.
More than 1 in 90 newborn boys will be affected by ASD, or autism spectrum disorder. It is now the most commonly diagnosed cause of mental retardation.
I sometimes wonder why myself. All I seem to get from it is Hallucinogenic Persistent Perception Disorder, Musical Ear Syndrome and some psychedelic effects which seem to occur without taking drugs of any kind.
The person might have an autism spectrum disorder or might not. That symptom would not prompt a diagnosis of an autism spectrum disorder. For a diagnosis of an autism spectrum disorder, the person will have a set of symptoms, not just one. To use this behavior to help diagnose an autism spectrum disorder as opposed to another condition, more information would be necessary. I know of a child who did something similar for the purpose of getting attention, rather than having an autism spectrum disorder. I know of a child who would periodically lie on the floor, motionless, pretending to be dead, apparently as a response to having heard a discussion about someone having died. It would be useful to know the context of the behavior. Does the person seem to find it stress-reducing? Does a certain event trigger this behavior? Does it happen several times per day or only a couple times per week? Does the person become agitated if interrupted during this process? Is this a behavior the person might have learned in kindergarten and has made part of his or her daily routine? These questions are examples of additional information that could be helpful to the person's doctor in diagnosing whatever condition it is.
It is a development disorder. Some types are more severe then others but there are doctors still finding out more about it. Children do get better with treatment and also with time.
Yes, both males and females of any age can be diagnosed with an autistic spectrum disorder, though it is more common among males. There are roughly 4 males with autism for every 1 female with autism
More and more research is finding that autism has a brain chemistry component and is not due to parenting styles, upbringing or psychology. Autism is seen as a disorder that falls upon a spectrum and is a constellation of symptoms rather than having a single identifier. Children who appear to be developing normally seem to exhibit signs of autism by the second or third year of life.
Well, Bipolar Disorder, is much more severe than Autism Spectrum Disorder (ASD) and Attention-Deficit Hyperactivty Disorder (ADHD), so the answer to this question is, 'no."
No They are completely unrelated, however some can be comorbid; existing together. For example, schizaffective disorder is a combination of schizophrenia and bipolar disorder. Comment on Comorbidity of Conditions with Autism and Asperger's SyndromeSeveral studies show that about 40% of people with autism or Asperger's Syndrome have one or more mental disorders, and others indicate 65%. Two studies indicate that almost 30% of people with autism or Asperger's Syndrome have a form of bipolar disorder. Some websites refer to a high correlation between autism and borderline personality disorder, but do not give a percent, whereas other websites claim that people with autism are misdiagnosed with borderline personality disorder because of similarity of symptoms, despite a difference in motives, feelings, and thoughts. For more information on conditions that are comorbid with autism spectrum disorders, use the link for The National Autistic Society (UK): Mental health and Asperger syndrome.
He reportedly had a developmental disorder previously called Asperger's Syndrome, but now more correctly called Autism Spectrum Disorder. Experts agree, however, that this is not the direct cause of his murderous spree, since Autism is not associated with the type of planned violence he exhibited.
There's nothing to suggest that autism is more prevalent today than it was decades, hundreds, or thousands of years ago. Autism diagnosis is on the increase but this doesn't mean that autism is on the increase.