Under the old DSM-IV (Diagnostics & Statistical Manual of Mental Disorders version 4) you would have been diagnosed as having "Classic Autism," vs. Asperger's Syndrome or High Functioning Autism. (one in the same, as far as I know.) According to "The Complete Guide to Asperger's Syndrome," by Dr. Tony Attwood, the only differentiating symptom I can recall is speech delay as an infant/toddler. There may be a couple others, but that's the only one I recall.. which is rather silly.
I have a friend on the spectrum who at times has been higher functioning than me (I've now surpassed him) yet because he didn't speak for the early years of his life he'd be considered as having Classic Autism while I would be AS/HFA, even though as adults now for the longest time he was functioning at a higher level than me. Seems stupid.
I think a lot of Doctors and others also thought this was ridiculous, which is why in the new DSM-V there is only one diagnosis to cover everyone on the spectrum. It's "Autism Spectrum Disorder," or ASD for short. Now the diagnosis is the same for everyone, and then it's just a matter of Doctors determining whether they're going to consider you LFA (Low Functioning Autism) or HFA (High Functioning Autism) in order to determine treatments, counselling, support needs etc - but the only diagnosis documented now is "ASD," - the whole LFA/HFA thing is more informal & subjective vs. an official diagnosis differentiator.
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for supporting trump. Because doing so is deplorable.