Hi I am asking on behalf of my sister whose boy has infantile spasms and brain damage. The drs are in the process of trying to anticipate what he might be able to do eventually, and figure out just how far behind he is. They are using the standard guidelines but my ds could do a lot more by then (no stealth boast just fact) and we were hoping you could help get us get a fuller picture of what on average a 18 month old can do. Many many thanks :)