Read the most advanced science of autism causes here. Bypass the commenterati and go direct to the science. Don't waste your time at the sites which pretend "no-one" knows what causes (or what sometimes cures) autism.
This is a website relating to the unchallenged theory of autism, IQ and genius, Personality and Individual Differences 14:459-482 (1993) by Robin P Clarke (the antiinnatia theory). An update review paper is being prepared for publication. Meanwhile you can download the original 1993 publication (presentationally revised) here, and the original 1993 publication (author's reprint) here . (the journal site version is here:, but without added charts of social class and you may have to pay Elsevier $31.)

Abnormalities of the "resting network" and of language lateralisation

In my most recent draft of the update review of the theory, I wrote:

Pisula (2010) lists numerous areas of the brain which are known to be normally (and by implication innately) associated with specified psychological functions, and which function abnormally in autism. She notes that these findings cannot be adequately accounted for in terms of “theory of mind” or “executive dysfunction” or “lack of central coherence”. But they all rather obviously fall very clearly within the concept of innatons being affected by excessive antiinnatia. So Pisula’s review can be re-read in retrospect as even further testimony to the empirical soundness of the antiinnatia theory...."

I'd now add to that list two more instances of a similar kind.

Firstly the "resting network", which in neurotypicals activates while not concentrating on a task, and becomes inactive when task-engaged. Whereas in autistics it tends to just have a similar level of activity in both circumstances. Ref: Failing to deactivate: Resting functional abnormalities in autism. Daniel P. Kennedy, Elizabeth Redcay and Eric Courchesne

Secondly, here is Dr Courchesne speaking before the ASF's 2010 meeting:
“We discovered that autistic infants and toddlers displayed a pronounced abnormality of language activation and cortical development.” “At each age studied from infancy to young childhood, most autistic subjects had greater activation on the incorrect side, namely, the right temporal cortex, compared to the left side and this incorrect activation pattern did not change or “normalize” even by 3 or 4 years of age. The abnormal pattern was strong in a substantial percentage of autistic infants and toddlers....".

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