This seems to back up what I am thinking about AS daydreaming.
http://www.medicalnewstoday.com/articles/43418.php
In the mind of an NT, parts of the brain called the Resting Network fire up when daydreaming and switch off when not daydreaming. This Resting Network seems to process social and emotional daydreaming by the sounds of the article. They found that in the autistic brain, this part of the brain neither fired up to full power when daydreaming or shut off when not daydreaming and instead kept churning away at a low level regardless. Meanwhile, the daydreaming aspie is often thinking about more rigid scientific/analyitical things than the NT.
I am certainly no neurologist but it would seem to make sense that a part of the brain that analyses social interaction is constantly running since there is a greater need to analyse that which does not come by instinct.
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AQ46, EQ9, FQ20, SQ50
RAADS-R: 181 (Language: 9, Social: 97, Sensory/Motor: 37, Interests: 36)
Aspie Quiz: AS129, NT80
Alexithymia: 137