> I don't understand why they didn't test this on people who have ADHD. Ease of sample, probably, but also as a baseline proof. There's essentially no evidence

> I don't understand why they didn't test this on people who have ADHD. Ease of sample, probably, but also as a baseline proof. There's essentially no evidence of any brain-training game ever producing significant cognitive improvements in populations with roughly normal functioning (in which I'm including ADHD). So before pitching it as a Ritalin replacement, step one would be to demonstrate that it achieves anything at all. Unfortunately, they don't seem to have done that either, because the test was so close to the game that practice effects are the most likely explanation.