http://blog.centerforautism.com/2011/02/01/whats-the-deal-with-autistic-kids-and-thomas-tank-engine/
This article deals with the fascination of autistic Kids with Thomas the Tank Engine. What it boils down to are 7 concrete reasons why autistic children like that show from the depths of the uncanny valley:
>1: The most obvious, well-known (maybe even a little stereotypical?) reason why children with autism love Thomas the Tank—their obsession with trains.
>2: The lining up of things. Since children with autism like to line things up, this must be why they love Thomas the Tank Engine.
>3: The trains fall, crash and get smashed—apparently very fascinating to children with autism. The crash scenes in Thomas the Tank are especially appealing because the action is clear and easy to follow. They can easily re-enact the action scenes at home.
>4: Lack of emotional display. Autistic children relate well to the emotional displays of Thomas the Tank Engine characters. The characters don’t actively talk and their faces are always still. When they do show emotion, it is often exaggerated and set on their faces for a period of time.
>5: Concrete emotions. Their emotions are not confusing. The characters are either happy, angry, surprised, tired, scared, or embarrassed. There is nothing in between.
>6: Comprehensive role playing. The class wars that take place between the higher order passenger trains and the lower order freight trains appeal to children with autism because it helps them role play with empathy, triumph, and frustration.
>7: No chaos. The background and scenery are always still, which allows for less distraction and more focus on the main picture.
Of these 7 criteria only 5 are relevant. I will apply them on one staple of autistic obsession in the next 3 posts.