I am finding it hard to say for sure but I think my child with Aspergers and dyslexia had way more problems with automaticity than my child with ADHD has. She was not an obvious case of ADHD at all, we got called in to the headmasters office to explain ourselves in fact! But as well as all the attention related improvements ADHD medication has marked impact on her hand writing and general control of her body. She has low tone and is hypermobile and while the medication doesn't take this away she's much less "floppy" on medication, less likely to flop all over the place when having her hair brushed for example...