Asperger syndrome is a type of autism. Autism is a "spectrum disorder" which means you can have it in a very severe way (not even being able to talk, for example), or in a very high-functioning way, or anywhere in between. They used to say that asperger syndrome is just a higher-functioning form of autism (and actually I believe the DSM is changing the definition back to that soon, which is very frustrating and unfortunate) but there are key differences that make "classic autism" and "asperger syndrome" distinct. For example, people with AS learn to talk on time or even early, while those with "classic autism" learn to talk late. There are many things that are shared in all types of autism - this is why I sometimes talk about "people on the autistic spectrum" to show that what I'm saying applies to both higher- and lower-functioning types. Sometimes I specifically say asperger syndrome because what I'm talking about might not apply to those with "classic autism."
I just wanted to talk about the DSM stuff briefly, because I actually agree (generally) with the DSM-5 Autism changes so far.
One of the decisions made is to eliminate Asperger's Syndrome as a clinical diagnosis. It is absolutely erased from the DSM altogether. Instead people with clinical AS will fall under the expanded Autistic Spectrum Disorder definition.
Previously the major (practical) diagnosis distinction between
Autistic Disorder and
Asperger's Syndrome was the delayed onset of language skills in the former. The
revised standards remove this requirement, essentially combing 'high functioning' autism and Asperger's as having the same overall clinical symptoms. Most clinical evidence supports this, and most interventions and outcomes are similar for both groups, even before you get into just how fluid the diagnoses tend to be. Similarly, people diagnosed with PDD-NOS (Pervasive Developmental Disorder Not Otherwise Specified, the third branch of the current autism spectrum disorders) are likely to fall under the new autism definition, and that diagnosis has also been eliminated.
The broad goal of this is to encourage better clinical treatment of people who currently fall under the various diagnoses. Someone who currently receives an Asperger's diagnosis might not qualify for assistance that someone with similar clinical symptoms but an autism diagnosis would be able to get (certainly it isn't recognised in some major US states). At the same time, lumping together people with Asperger's under such a strongly defined diagnosis tends to suggest they have similar symptoms and needs, ignoring the internal spectrum. While this spectrum is narrower than the current range within the DSM-IV autism diagnosis, it still exists and trying to treat all people with Asperger's similarly makes no more sense than treating all people with high functioning autism similar. Making it clearer than these are a spectrum of symptoms could well make for more individualised and so better care as and when needed.
At the same time a deliberate goal of the DSM-5 was to recognise that Asperger's has become as much a cultural definition as a clinical one. There are a great many self diagnosed people out there, and lots of them simply wouldn't qualify for a DSM-IV diagnosis. The APA are often reluctant to get involved and tell people whether such identities are 'real' or not, so tend to prefer to make clinical definitions in parallel to cultural ones, neither confirming nor denying the reality of those cultural identities.
There are definite cultural impacts, but the removal of Asperger's as a clinical diagnosis doesn't mean its non-existence as a cultural or individual identity.
Speaking (somewhat riskily as an outsider) culturally myself, I'd quite like to see some of the current efforts to normalise and promote Asperger's as a positive or neutral condition redirected to focus more generally on autism and ASD. There is a fair amount of Asperger's exceptionalism, dividing that community from the 'disabled' autists. From my perspective, where I've worked with both AS and non-AS autists at the university level, this can only be divisive and harmful towards the non-AS individuals in allowing (or in some cases, promoting) negative stereotypes and attitudes towards them, even as the Aspies gain more ground towards acceptance.
Now, on top of all this I also believe that many low-level interventions (particularly the sort of mentoring/support I was involved in at uni) should be opened up more broadly, beyond clinical diagnoses and requirements. I can think of many neurotypical individuals who could benefit from such services as much as many autists/Aspies I've known.