Have a read of this... (from June 2008).
http://www.articlesbase.com/health-articles/are-aspergers-and-high-functioning-autism-the-same-thing-448862.html
It suggests differences are;
HFA presents at 2 years of age
Aspergers presents at 3 years of age
More importantly, it says this;
Quote:
Children with Asperger's Syndrome often fail to display empathy in their behaviors. It is social interaction where these children face their deepest challenges. Many struggle or fail to develop friendships, don't take pleasure in achievements or spontaneous activities with others, lack in emotional and social reciprocity, and have diminished non-verbal communication behaviors such as facial expressions, postures, eye contact, and overall gestures.
However, children with classic autism (even those who are high functioning), Asperger's Syndrome children will not typically withdraw from other people. In fact, even if they are awkward in their method, they will often approach others and begin a discussion. It is conversation where their struggle may occur, as a discussion for a child with Asperger's Syndrome may simply consist of a long-winded single-sided speech about something the child truly enjoys, without any need for contribution from the other people present.
Compare this with statements made on Tony Attwood's web site... particularly in this document...
http://www.tonyattwood.com.au/articles/pdfs/attwood1.pdfTony Attwood wrote:
There has been some criticism from clinicians and research that the criteria do not identify the disorder Hans Asperger originally described. The four cases he described in his original paper would be diagnosed, according to DSM criteria, as having autism not Asperger's syndrome. (Miller and Ozonoff 1997). If one was to use the DSM criteria, Asperger's syndrome would be a very rare condition.
and
Tony Attwood wrote:
Clinical experience and research has confirmed that in terms of the child's behavioural profile, children and adults with High Functioning Autism and Asperger's syndrome have a very similar presentation (Ozonoff, South, and Miller 2000). Both groups benefit from the same behavioural treatment programs.
and
Tony Attwood wrote:
Having reviewed the literature, we may be able to answer the question, is there a difference between Asperger's syndrome and High Functioning Autism? The reply is that the research and clinical experience would suggest that there is no clear evidence that they are different disorders. Their similarities are greater than their differences. We appear to be taking, particularly in Europe and Australia, a dimensional view of autism and Asperger' syndrome rather than a categorical approach.