Melon the synapses stuff I picked up from reading papers on neurology, I'd need a better grasp of the subject to know which were correct.
Also, it's years ago but I think there's bits of it referenced in Jean Ayers' book on sensory integration saying how OT can create new pathways so a child can master an action where it couldn't previously.
Anecdotally, I've seen Alexander Technique enable someone to do a few tasks they were unable to do before the therapy. Oddly enough, that doesn't involve anything like forcibly practising the desired movement.
Hidden thank-you, it would be of benefit to me right now if I could get a neurologist to point to a brain scan and say 'look at that bit right there, it proves that the related disability is of x-level of severity and the person can do y but can never do z.
I don't think we're able to do so yet, if anyone definitely knows it's possible and knows a UK based neurologist who can do that, please pm me.
Toads as I said previously, there are no current scans that show identifiable autism. Some autistic people have brains that on scans are indistinguishable from NTs.
I think current science is around this level of distinguishing some autistic traits in brains www.sciencedaily.com/releases/2015/12/151217130500.htm
Are you getting too hung up on the phrase 'wired differently' and imagining that you could physically see or detect 'wiring' or some form of physical connection? AFAIK Synapses fire, like electricity or little flashes of light, or have a chemical reaction, there's not a visible physical connection between them that forms a pathway. Happy to be corrected if my recollections are wrong.
Maybe a better analogy is that NT people run on Windows and Autistic people run on Mac. One of the early books on differences mentioned marching to a different drummer.