A post on the New Yorker website called “Brain Games are Bogus” provides considerable evidence for that conclusion. The evidence is about the use of brain games to raise the IQ of children and young adults, whereas Posit Science’s training program — which I raised questions about — is aimed at older people. However, it would be surprising if brain games have no effect until you reach a certain age. More plausible is that they never provide substantial benefits — at least, benefits broad enough and strong enough and long-lasting enough to be worth the training time (one hour/day for many weeks).
I read a Posit Science paper, with older subjects, that seemed to me to show that its training had little lasting benefit. The stated conclusions of the paper were more positive. Too bad the head of Posit Science didn’t answer most of my questions.
Thanks to Alex Chernavsky.