And I would be the person who happened upon Drik's blog via a google search for transgender aspergers.
I'm a newly transitioning MtF aspie. I actually just told my boss this morning that I'm seeing a therapist for Gender Issues.
The purpose of that search, and this post, is because the limited information I've been able to find on the web suggests a few things.
1) The incidence among Aspies of transsexuality seems to be significantly higher then among the NT (Neutotypical) community at large. Some estimates range as high as 40% of XX-born Aspies identify as Transmen.
2) The experience of transsexuality among Aspies seems to differ significantly from their NT counterparts. For instance, it is often not accompanied by childhood desires to "dress" as the other sex.
I believe the reason for that is that Aspies, as a group, tend to be more gender blind then NT's. I.E. an Aspie kid doesn't know what it means to be male or female, and so is ill equipped to understand or come to terms with transgender feelings.
Now, the question I pose is this: Is it a matter of the same environmental variables that are suspected to cause Asperger's that may also cause transsexualism? Or does the gender blindness of Aspies allow them more liberty to honestly evaluate questions of gender without pre-conceived notions of what they should be interfering?
I.E. is the occurance of transgender feelings or inclinations in NT's essentially the same as in the Aspie population, but the Aspie's are just more likely to accept themselves and do what needs to be done, regardless of public opinion? Or is the incidence of Transsexualism truly higher in Aspie's?
These are the questions I've been obsessing on recently, and so I've been looking for individuals asking the same questions, just out of a general thirst for knowledge. (It's an Aspie thing.... no one researches like an interested Aspie.

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Anyways. I found a yahoo group dedicated to Trans Aspies (Transgender PDD I think was the name) and a few people asking the same questions, but no active community as of yet.
There's plenty of anecdotal information to posit a correlation between the two, but the question is the nature of the relationship.