Brain timing shares significant genetic component with intelligence

Interesting behavioral genetics study that demonstrates that millisecond temporal processing in the brain has a significant genetic component that is also shared with general intelligence. This (and other) research continues to indicate the importance of investigating "brain timing" as an important component of cognitive functioning. Also, this research indicates that this association is not all genetic--which suggests that interventions that might produce changes in basic neural timing mechanisms may increase cognitive efficiency/functioning.

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Posted with Blogsy from my iPad mini 4

Research byte: More on the critical importance of attentional control (AC)--this time in sports performance

The ever growing body of research re the importance of the construct of attentional control (AC) in all kinds of human performance is, IMHO, one of the most important findings in cognitive psychology during the past few years.  In my opinion, improving AC may be one of the key's to effective brain training/fitness programs.  Also, differences in the AC of individuals has important implications for understanding differences in cognitive functioning.

Journal of Applied Research in Memory and Cognition

Available online 10 June 2016

In Press, Corrected Proof — Note to users

Target Article

Working Memory, Attentional Control, and Expertise in Sports: A Review of Current Literature and Directions for Future Research

• Philip Furley^a, ,
• Greg Wood^b

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doi:10.1016/j.jarmac.2016.05.001

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The aim of the present review was to investigate the theoretical framework of working memory as it relates to the control of attention in sport and thereby apply cognitive psychological theory to sports, but also use the sports domain to advance cognitive theory. We first introduce dual-process theories as an overarching framework for attention-related research in sports. Then a central mechanism is highlighted how working memory is involved in the control of attention in sports by reviewing research demonstrating that the activated contents in working memory control the focus of attention. The second part of the paper reviews literature showing that working memory capacity is an important individual difference variable that is predictive of controlling attention in a goal-directed manner and avoiding distraction and interference in sports. Finally, we address the question whether differences in working memory capacity contribute to sport expertise.

Keywords

• Dual-process;
• Working memory;
• Attention;
• Sport;
• Individual differences

Research byte: Multi-domain training may improve attentional control (AC) in older adults

Multi-domain training enhances attentional control.

Binder, Julia C.; Martin, Mike; Zöllig, Jacqueline; Röcke, Christina; Mérillat, Susan; Eschen, Anne; Jäncke, Lutz; Shing, Yee Lee

Psychology and Aging, Vol 31(4), Jun 2016, 390-408. http://dx.doi.org.ezp1.lib.umn.edu/10.1037/pag0000081

Abstract

Multi-domain training potentially increases the likelihood of overlap in processing components with transfer tasks and everyday life, and hence is a promising training approach for older adults. To empirically test this, 84 healthy older adults aged 64 to 75 years were randomly assigned to one of three single-domain training conditions (inhibition, visuomotor function, spatial navigation) or to the simultaneous training of all three cognitive functions (multi-domain training condition). All participants trained on an iPad at home for 50 training sessions. Before and after the training, and at a 6-month follow-up measurement, cognitive functioning and training transfer were assessed with a neuropsychological test battery including tests targeting the trained functions (near transfer) and transfer to executive functions (far transfer: attentional control, working memory, speed). Participants in all four training groups showed a linear increase in training performance over the 50 training sessions. Using a latent difference score model, the multi-domain training group, compared with the single-domain training groups, showed more improvement on the far transfer attentional control composite. Individuals with initially lower baseline performance showed higher training-related improvements, indicating that training compensated for lower initial cognitive performance. At the 6-month follow-up, performance on the cognitive test battery remained stable. This is one of the first studies to investigate systematically multi-domain training including comparable single-domain training conditions. Our findings suggest that multi-domain training enhances attentional control involved in handling several different tasks at the same time, an aspect in everyday life that is particularly challenging for older people. (PsycINFO Database Record (c) 2016 APA, all rights reserved)

Working memory training (dual n-back) study suggests improvement in white matter tract integrity: White matter matters

White matter matters.  Yes, my readers may be tiring of this common mantra. 

But, another new study has again implicated the importance of white matter integrity.  More importantly, the study suggests that a working memory training program (dual n-back) may be effective in increasing white matter integrity, thus increasing the efficiency and synchronization of communication between different brain networks.  Click on the images below to enlarge.

 

This study is consistent with my hypothesis that the effectiveness of some brain training programs may be due to increased white matter tract integrity.  An explanation, with a link to a MindHub pub white paper outlining this hypothesis, can be found here.  Other white matter related posts can be found here.