Editing Asperger syndrome (section)

== Classification ==
The extent of the overlap between Asperger syndrome and other forms of autism, particularly what was sometimes called [[high-functioning autism]] is unclear.<ref name=Klin>{{cite journal | vauthors = Klin A | s2cid = 34035031 | title = Autismo e síndrome de Asperger: uma visão geral | trans-title = Autism and Asperger syndrome: an overview | journal = Revista Brasileira de Psiquiatria | volume = 28 | issue = Suppl 1 | pages = S3–11 | date = May 2006 | language = pt-br | pmid = 16791390 | doi = 10.1590/S1516-44462006000500002 | doi-access = free}}</ref><ref name="Kasari">{{cite journal | vauthors = Kasari C, Rotheram-Fuller E | title = Current trends in psychological research on children with high-functioning autism and Asperger disorder | journal = Current Opinion in Psychiatry | volume = 18 | issue = 5 | pages = 497–501 | date = September 2005 | pmid = 16639107 | doi = 10.1097/01.yco.0000179486.47144.61 | s2cid = 20438728}}</ref><ref>{{cite journal | vauthors = Witwer AN, Lecavalier L | s2cid = 5316399 | title = Examining the validity of autism spectrum disorder subtypes | journal = Journal of Autism and Developmental Disorders | volume = 38 | issue = 9 | pages = 1611–24 | date = October 2008 | pmid = 18327636 | doi = 10.1007/s10803-008-0541-2}}</ref> The ASD classification is to some extent an artifact of how autism was discovered,<ref>{{cite journal | vauthors = Sanders JL | s2cid = 26351778 | title = Qualitative or quantitative differences between Asperger's disorder and autism? Historical considerations | journal = Journal of Autism and Developmental Disorders | volume = 39 | issue = 11 | pages = 1560–67 | date = November 2009 | pmid = 19548078 | doi = 10.1007/s10803-009-0798-0}}</ref> and it may not reflect the true nature of the spectrum;<ref>{{cite journal | vauthors = Szatmari P | title = The classification of autism, Asperger's syndrome, and pervasive developmental disorder | journal = Canadian Journal of Psychiatry | volume = 45 | issue = 8 | pages = 731–38 | date = October 2000 | pmid = 11086556 | doi = 10.1177/070674370004500806 | s2cid = 37243752 | doi-access = free}}</ref> methodological problems have beset Asperger syndrome as a valid diagnosis from the outset.<ref>{{cite book|chapter=History and development of autism spectrum disorders|year=2006|publisher=Elsevier Science|title=Early intervention for autism spectrum disorders: a critical analysis|page=21|isbn=978-0-08-044675-2|location=Amsterdam|chapter-url=https://books.google.com/books?id=XonQy12xCgEC&q=Early+intervention+for+autism+spectrum+disorders:+a+critical+analysis&pg=PP2|vauthors=Matson JL, Minshawi NF}}</ref><ref name="Schopler388">{{cite book|title=Asperger syndrome or high-functioning autism?|veditors=Schopler E, Mesibov GB, Kunce LJ|publisher=Plenum press|location=New York|year=1998|chapter=Premature popularization of Asperger syndrome|vauthors=Schopler E|pages=388–90|isbn=978-0-306-45746-3|chapter-url=https://books.google.com/books?id=jz_xbeWgG9AC&q=Asperger+syndrome+or+high-functioning+autism}}</ref> As noted above, in the 2010s, Asperger syndrome, as a separate diagnosis, was eliminated and folded into autism spectrum disorder in the [[DSM-5]] and the [[ICD-11]]. Like the diagnosis of Asperger syndrome,<ref name="Ghaziuddin">{{cite journal | vauthors = Ghaziuddin M | s2cid = 7490308 | title = Should the DSM V drop Asperger syndrome? | journal = Journal of Autism and Developmental Disorders | volume = 40 | issue = 9 | pages = 1146–48 | date = September 2010 | pmid = 20151184 | doi = 10.1007/s10803-010-0969-z}}</ref> the change was controversial.<ref name="Ghaziuddin" /><ref>{{cite journal | vauthors = Faras H, Al Ateeqi N, Tidmarsh L | title = Autism spectrum disorders | journal = Annals of Saudi Medicine | volume = 30 | issue = 4 | pages = 295–300 | year = 2010 | pmid = 20622347 | pmc = 2931781 | doi = 10.4103/0256-4947.65261 | doi-access = free }}</ref>

The [[World Health Organization]] (WHO) previously defined Asperger syndrome (AS) as one of the [[pervasive developmental disorder]]s (PDD), which are a [[spectrum disorder|spectrum of psychological disorders]] that are characterized by abnormalities of [[social interaction]] and communication that pervade the individual's functioning, and by restricted and repetitive interests and behavior. Like other neurodevelopmental conditions, ASD begins in infancy or childhood, has a steady course without remission or relapse, and has impairments that result from maturation-related changes in various systems of the brain.<ref name="ICD-10-F84.0">{{cite book|chapter-url=http://apps.who.int/classifications/apps/icd/icd10online/?gf80.htm+f840|year=2006|title=International Statistical Classification of Diseases and Related Health Problems|edition=10th ([[ICD-10]])|author=World Health Organization|chapter=F84. Pervasive developmental disorders|publisher=World Health Organization |isbn=978-92-4-154419-1}}</ref>