Although neither score on its own set a new high, the combined average of both sessions today reached 10.0.
Having now completed 32 days of doubled training, I am curious to see what happens in the next couple of weeks. For most people, dual n-back training progress follows a fairly straight line for the first 40 to 50 sessions, then slowing down. I would predict that the same might be true of the double-session training.
If so, it is fascinating to wonder what might be going on neurologically to explain the limit to the straight line increases…
Brain Training - Dual N-Back And "Nines"