|Severity level||Social communication||Restricted, repetitive behaviors|
|Severe deficits in verbal and nonverbal social communication skills cause severe impairments in functioning, very limited initiation of social interactions, and minimal response to social overtures from others.|
For example, a person with few words of intelligible speech who rarely initiates interaction and, when he or she does, makes unusual approaches to meet needs only and responds to only very direct social approaches.
|Inflexibility of behavior, extreme difficulty coping with change, or other restricted/repetitive behaviors markedly interfere with functioning in all spheres. Great distress/difficulty changing focus or action.|
|Marked deficits in verbal and nonverbal social|
communication skills; social impairments apparent even with supports in place; limited initiation of social interactions; and reduced or abnormal responses to social overtures from others.
For example, a person who speaks simple sentences, whose interaction is limited to narrow special interests, and who has markedly odd nonverbal communication.
|Inflexibility of behavior, difficulty coping with change, or other restricted/repetitive behaviors appear frequently enough to be obvious to the casual|
observer and interfere with functioning in a variety of contexts. Distress and/or difficulty changing focus or action.
|Level 1 “Requiring|
|Without supports in place, deficits in social communication cause noticeable impairments. Difficulty initiating social interactions, and clear examples of atypical or unsuccessful responses to social overtures of others. May appear to have decreased interest in social interactions.|
For example, a person who is able to speak in full sentences and engages in communication but whose to-and-fro conversation with others fails, and whose attempts to make friends are odd and typically unsuccessful.
|Inflexibility of behavior causes significant interference with functioning in one or more contexts. Difficulty switching between activities. Problems of organization and planning hamper independence.|
There were 5 different types of autism spectrum disorders depending upon its different criteria and the degree of severity. Different types of autism have different types of symptoms but the difference is very narrow. However, these 5 different types of autism were represented in the 4th Edition of DSM-5. From the criteria of autism, it is found that Asperger’s Syndrome is high functioning autism and Autistic Disorders is the low functioning autism.
With the publication of the 5th edition of Diagnostic and Statistical Manual (DSM-5) in May 2013, all types of autism were excluded and now there is only one type of autism that is autism spectrum disorders (ASD). Autism is now diagnosed by its severity as lavel1, level2, and lavel3.
Identification of these different types of autism will help us to understand autism more and help for early intervention and development. of our autistic children.