StuartN wrote:
There is a recent paper "Morphological Features in Children with Autism Spectrum Disorders: A Matched Case–Control Study" by Heval Ozgen et al with a list of physical characteristics of autism -
http://www.springerlink.com/content/ck4 ... lltext.pdf - which states that there are many measurable physical characteristics that are exaggerated in some people with autism. It is even possible that a combination of these characteristics, none of which is exceptional alone, may together be indicative of autism or be an "autistic look".
The title of this thread, "deformity", is wrong. Autistic physical characteristics are all within the normal range of measurement, otherwise they would be a part of the diagnostic process.
Very interesting study. These two parts stood out to me particularly.
"Indeed, there is strong indication that individuals with
schizophrenia may display evidence of craniofacial dysmorphology.
Some evidence for such an overlap comes
from the observation that individuals with ASD may also
be at greater risk for schizophrenia"
So there seems to be some overlap in the disorders that also relates to physical characteristics.
"While we did not intend to establish specificity
of single phenotypic characteristics to specific subtypes
of ASD, we consider it possible that sets of physical
anomalies might be related to severity of illness, or those
specific phenotypic behavioral characteristics may define
even more subtypes of ASD."
They note differences, "anomalies" and use the terms "dysmorphology", but you are correct that calling these differences a deformity is not correct. According to the study there are definitely noticeable measurable differences so it does make sense that there is "a look"
I also find it interesting that they think there may be differences between the subtypes.