High Functioning Autism
High-functioning autism (HFA) is an informal term applied to autistic people who are deemed to be "higher functioning" than other autistic people, by one or more metrics. There is no consensus as to the definition. HFA is not yet a recognised diagnosis in the DSM-IV-TR or the ICD-10.
The amount of overlap between HFA and Asperger syndrome is disputed. Some researchers argue that the two are distinct diagnostic entities, others argue that they are indistinguishable.
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