Consistent with the research in this article, have proposed that the training of attentional control (aka, controlled attention) may hold "one" (of multiple) keys to why some brain training programs may be effective.
You can find a MindHub Pub white paper where I lay out this information here.
I agree with Scott Barry Kaufman on the importance of the default brain network. However, at times one needs to learn how to shut down the default network "on demand" and invoke the executive control network. I have written a white paper on this topic, in the context of trying to explain how Interactive Metronome appears to help people train their abilities to "quiet the busy mind", which is available at the following link. It also covers the three brain networks discussed by Scott in his article at the Huffington Post. Enjoy.
Interesting study in the latest issue of Intelligence that suggests a link between state-level IQ and growth and innovation. Of course, this looks good to me as I live in MN (see last figure). That being said, the R-squared values must be interpreted appropriately. They are in the mid .50s to high .60's, which indicates that the variables included as predictors in this investigation accounted for 25% to approximately 45% of the innovation dependent variable. That is large and statistically significant, but it indicates (aside from the fact that this is a correlational and not experimental study--correlation does not prove causality) that there are many other variables that need to be considered. It is a complex multivariate issue.
Comparisons of Five Performance Validity Indices in Bona Fide and Simulated Traumatic Brain Injury
Bashem, Jesse R.; Rapport, Lisa J.; Miller, Justin B.; Hanks, Robin A.; Axelrod, Bradley N.; Millis, Scott R.
The Clinical Neuropsychologist, Vol. 28 Issue 5 – 2014: 851 - 875
Recall the cell phone commercial with the message "its the network!" The explosion of research on the efficiency of brain networks (see another report below) just keeps comming. Follow the following link for posts related to brain network efficiency at the Brain Clock blog. http://www.brainclock.net/search/label/brain%20networks
An FYI note regarding one of the free content curation sources provided by Dr. Kevin McGrew and the MindHub (www.themindhub.com). If you have the free Flipboard app and are interesting in psychology, cognition, intelligence, neuroscience, etc., then give this free e-magazine of curated stories a try.