"With each SPECIAL having 10 Perks, there are 70 base Perks. With Perk ranks, it increases that number to over 270. That number also includes a top-level Training perk for each SPECIAL, so that you can essentially skip a regular Perk and raise a SPECIAL by 1. This gives you the benefit of the new SPECIAL value, and allows access to higher Perks in future levels."
This looks much like Special Training to me, but instead of putting them anywhere, each rank goes to one of the attributes.