Sharing Improved reading measures in adults with dyslexia following transcranial direct current stimulation treatment via BrowZine

Improved reading measures in adults with dyslexia following transcranial direct current stimulation treatment
Heth, Inbahl; Lavidor, Michal
Neuropsychologia, Vol. 70 – 2015: 107 - 113

10.1016/j.neuropsychologia.2015.02.022

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Research byte: Excellent description of similarities and differences of three primary models of working memroy

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Tuesday, February 24, 2015

11:18 AM

Research Byte: Strong working memory (WM)--fluid intelligence (Gf) relationship not due to time allowed on both sets of tasks

Very good article that does not support Chuderski's research that had suggested a relationship between time on task (not the same as cognitive processing speed-Gs) and fluid reasoning or working memory. The current study reinforces the very high (but not 1.0) effect size from working memory to Gf. However, how much time an individual (at least for young adults) spends on working memory or fluid tasks does not explain the strong WM--Gf relation. Generalization to children and the elderly cannot be made without further research.

What I find particularly interesting is the authors hypothesis that one possible general mechanism explanation for the WM-->Gf link is temporal based processing of information. This is consistent with the temporal power resolution hypotheses (or temporal g) of Rammsayer and colleagues and a large body of research I have reported at the Brain Clock blog. If you visit that link, pay particular attention to the MindHub Pub2 that presents a three-level hypothesized model for understanding the IM effect. Note that at the lowest neurocognitive and biological level of intelligence research, I have hypothesized that temporal g (and not Jensen's reaction time g) may be one of the key domain-general mechanisms driving critical cognitive abilities, especially working memory and fluid intelligence.

As per the recent four-level reductionistic framework (see brief 10 minute video explanation) I have offered to organize intelligence related research (adapted from Earl Hunt's work), the current study links research at the psychometric, information processing, and neurocognitive and biological (neural efficiency) levels.

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Article: One Brain Network for All Mental Illness

One Brain Network for All Mental Illness
http://neurocritic.blogspot.com/2015/02/one-brain-network-for-all-mental-illness.html

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Sharing Relational complexity modulates activity in the prefrontal cortex during numerical inductive reasoning: An fMRI study via BrowZine

Relational complexity modulates activity in the prefrontal cortex during numerical inductive reasoning: An fMRI study
Xiao, Feng; Li, Peng; Long, Chang-Quan; Lei, Yi; Li, Hong
Biological Psychology, Vol. 101 – 2014: 61 - 68

10.1016/j.biopsycho.2014.06.005

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Sharing Intelligence in creative processes: An EEG study via BrowZine

Intelligence in creative processes: An EEG study
Jaarsveld, Saskia; Fink, Andreas; Rinner, Marcus; Schwab, Daniela; Benedek, Mathias; Lachmann, Thomas
Intelligence, Vol. 49 – 2015: 171 - 178

10.1016/j.intell.2015.01.012

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Sharing Bayesian models of child development via BrowZine

Bayesian models of child development
Gopnik, Alison; Bonawitz, Elizabeth
Wiley Interdisciplinary Reviews: Cognitive Science, Vol. 6 Issue 2 – 2015: 75 - 86

10.1002/wcs.1330

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Article: Cognitive training as a resolution for early executive function difficulties in children with intellectual disabilities

Cognitive training as a resolution for early executive function difficulties in children with intellectual disabilities
http://www.sciencedirect.com/science/article/pii/S0891422214005319

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Article: 7 Ways Meditation Can Actually Change The Brain

7 Ways Meditation Can Actually Change The Brain
http://www.forbes.com/sites/alicegwalton/2015/02/09/7-ways-meditation-can-actually-change-the-brain/

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******************************************************

Kevin McGrew, PhD

Educational Psychologist

Director, Institute for Applied Psychometrics

IAP

www.themindhub.com

******************************************************

Smoking interfers with central executive "control" brain networks

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Yet more research indicating the importance of brain network connectivity, this time demonstrating the detrimental effects of smoking on brain network communication, especially with the executive control and default brain networks.  Take away… smoking may impair the brain networks involved in cognitive control and make stopping smoking even more difficult.

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Sharing Large-scale functional brain network changes in taxi drivers: Evidence from resting-state fMRI via BrowZine

Large-scale functional brain network changes in taxi drivers: Evidence from resting-state fMRI
Wang, Lubin; Liu, Qiang; Shen, Hui; Li, Hong; Hu, Dewen
Human Brain Mapping, Vol. 36 Issue 3 – 2015: 862 - 871

10.1002/hbm.22670

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Sharing Measuring time perspective in adolescents: Can you get the right answer by asking the wrong questions? via BrowZine

Measuring time perspective in adolescents: Can you get the right answer by asking the wrong questions?
Perry, John L.; McKay, Michael T.; Worrell, Frank C.; Živkovič, Urška; Mello, Zena R.; Musil, Bojan
Personality and Individual Differences, Vol. 78 – 2015: 53 - 57

10.1016/j.paid.2015.01.015

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Sharing Levels of Processing in Working Memory: Differential Involvement of Frontotemporal Networks via BrowZine

More research consistent with the P-FIT model of intelligence.

Levels of Processing in Working Memory: Differential Involvement of Frontotemporal Networks
Rose, Nathan S.; Craik, Fergus I. M.; Buchsbaum, Bradley R.
Journal of Cognitive Neuroscience, Vol. 27 Issue 3 – 2015: 522 - 532

10.1162/jocn_a_00738

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Article: Scientists detect brain network that gives humans superior reasoning skills

And yet more support for the P-FIT model of neural intelligence

Scientists detect brain network that gives humans superior reasoning skills
http://www.psypost.org/2014/12/scientists-detect-brain-network-gives-humans-superior-reasoning-skills-29902

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Article: The trouble with tDCS? Electrical brain stimulation may not work after all

The trouble with tDCS? Electrical brain stimulation may not work after all
http://digest.bps.org.uk/2015/02/the-trouble-with-tdcs-electrical-brain.html

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*********************************************

Kevin McGrew, PhD

Educational Psychologist 

Director

Institute for Applied Psychometrics

www.themindhum.com

*********************************************

Special journal issue on concussions

The Need for Theory to Guide Concussion Research
Molfese, Dennis L.
Developmental Neuropsychology, Vol. 40 Issue 1 – 2015: 1 - 6

10.1080/87565641.2015.1006479

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More evidence that musical training protects the brain

Content creation by IQs Corner and the Mind Hub

http://medicalxpress.com/news/2015-02-evidence-musical-brain.html

Research series: How, when and why does targeted cognitive training work to promote behavioral and emotional health?

Content curated by IQs Corner and the Mind Hub

http://sharpbrains.com/blog/2015/02/02/research-series-how-when-and-why-does-targeted-cognitive-training-work-to-promote-behavioral-and-emotional-health/

Article: Multiple modes of clearing one's mind of current thoughts: Overlapping and distinct neural systems.

Multiple modes of clearing one's mind of current thoughts: Overlapping and distinct neural systems.
http://www.ncbi.nlm.nih.gov/pubmed/25637772?dopt=Abstract

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