Asperger syndrome is a condition similar to autism but without clinically significant language delay after the toddler years. Language, however, is still used in a stilted and stereotyped manner. People with Asperger Syndrome usually have no general cognitive delay, meaning their overall IQ is usually in the normal range or above. Some authorities make a distinction between Asperger Syndrome and High Functioning Autism (HFA), but most do not.
Many experts argue that autism and Asperger syndrome are the same disorder, only separated by language difficulty and lower IQ in the former diagnostic group. In the new version of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) the two have been merged into one category, autism spectrum disorders.