Tedd, I taught linguistics for many years. Sadly those who now teach you are relying on what they learned years ago.
Right, here's the deal. We all have these mirror neurons in our brains. They're like little wing mirrors on lollipop sticks. They do amazing things, and it's all tied up to the motor cortex. If our brain is perfectly wired, when we SEE someone doing something, the mirror neurons immediately make that action happen inside our own brain. NOT ONLY THAT, but they also enable us to 'feel' how it feels, not only on a tactile level but also on an emotional level.
Mirror neurons are the most miraculous-short cut we have to understanding doing and feeling, and also to language acquisition which is also a feeling and doing issue.
It's also an evolutionary adaptation. The mirror neuron system, in the sophistication we as humans now experience, is the basis of language, and has developed from a higher primate awareness of the 'intentional stance' (Daniel Dennett) - otherwise known as Theory of Mind.
Mirror Neurons aren't strongly wired from/to the modalities of the five senses in autism spectrum conditions. These long-range connections to processing parts of the brain like the MNS and the pre-frontal cortex, may be compromised in autism, as has now been somewhat sugggested in the most recent (April 29th) research which points in some cases to a lack of sticky-backed plastic (if I can make that analogy) to longer-range connections in the autistic brain.
No worries. They just have to work out patterns for themselves, which by-pass short cuts, and are better for that at times, because those patterns may be original and effective.
Sorry, I got totally carried away. I shall now creep back under the radar, and return to my box of frogs.....