And more evidence for ADHD as being related to poor brain network connectivity. (click here for more posts) Click on images to enlarge.
And, again, this extant research is consistent with the three-level hypothesized explanation of the impact of certain brain training programs on controlled attention (click here for special white paper as well as on-line PPT modules and keynote video presentation of this model).
I just skimmed the article below. I like the way it uses the terms external/internal-directed (ECD/ICD) cognition framework to discuss the differences and relations between the activities of the default brain network and the executive control networks (click here for excellent article explaining these two networks)
Click on images to enlarge
I resonate to this EDC/IDC framework as it is relevant to my white paper on improving attentional control (via IM training--although the paper, IMHO, is more about how different brain training programs may work). That hypothesized model is in the figure above, and can be found at the MindHub.
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Neuroimaging of the Aging Brain: Introduction to the Special Issue of Neuropsychology Review
Lockhart, Samuel; DeCarli, Charles; Fama, Rosemary
Neuropsychology Review, Vol. 24 Issue 3 – 2014: 267 - 270
Interesting meta-analysis suggestingthat working memory training, via the n-back task, over a relatively short period of time, can improve fluid intelligence/reasoning (Gf). Conservative estimate of 3-4 Gf IQ points improvement. Click on images to enlarge.