http://journal.frontiersin.org/Journal/10.3389/fpsyg.2014.01220/full?utm_source=newsletter&
Michael I. Posner- 1Department of Psychology, University of Oregon, Eugene, OR, USA
- 2Department of Psychological Sciences, Texas Tech University, Lubbock, TX, USA
- 3Department of Anatomy and Neurobiology, School of Medicine, University of California, Irvine, Irvine, CA, USA
Training can induce changes in specific brain networks
and changes in brain state. In both cases it has been found that the
efficiency of white matter as measured by diffusion tensor imaging is
increased, often after only a few hours of training. In this paper we
consider a plausible molecular mechanism for how state change produced
by meditation might lead to white matter change. According to this
hypothesis frontal theta induced by meditation produces a molecular
cascade that increases myelin and improves connectivity.
In recent years there have been many reports of changes in white matter induced by training of human adults (see Zatorre et al., 2012
for a summary). Such changes usually involve training of specific
networks involved in sensory discrimination, motor activity, or working
memory. We call this form of training network training because it uses a
specific task to induce changes in the underlying brain network. A
different form of training involves training the brain state as occurs
in the use of aerobic exercise or meditation, which we call state
training (Tang and Posner, 2009; Tang et al., 2012b).
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