Games as social interaction

How much do you know about autism spectrum disorders?

I know this seems a strange question to ask at the opening of an article about games, but bear with me for a moment.

In a sense, the autism spectrum disorders (on which, admittedly, I am no expert either, but my understanding is that it's not really a spectrum, though the various related disorders are still referred to under that umbrella term) are a lack of the normal social hardwiring in the brain that is usual for human beings. Let me explain a bit more in depth:

Whereas most animals developed certain physical or sensory advantages to allow their survival (for example, the web-spinning ability of many spiders, or the echolocation abilities of insectivorous bats, or sharks' teeth, and so on), the trait that allowed humans to survive was their social networks. Like wolves and other pack animals, humans developed an ability to co-operate that increased their chances of survival. Their need for greater inter-dependency developed a feedback loop with their intelligence; they needed to be smarter so they could support larger co-operative social groups, and they needed larger co-operative social groups so they could be smarter.