MrsPeel wrote:
The latest I heard was it's mostly genetic - they tested identical twins and found if one had autism the other had 96% chance of having autism also. The weird thing was that the twins often had autism at different levels of severity and displayed different behavioural traits.
So it's like you're born with autism, but there's a lot of variation in how the autism affects you, and nobody quite has a handle on why that is.
I just finished Temple Grandin's book "The Autistic Brain". Her brain has been much studied with MRI. Reading about the results gives me some understanding how there can be such variation in identical twins. What they found in her case was the cerebellum is 20% undersized and other brain structures grew larger as a result. I wonder if this compensation happens unpredictably and produces different brains in twins (but this is just my guess).
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ND: 123/200, NT: 93/200, Aspie/NT results, AQ: 34
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