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Παρασκευή 31 Αυγούστου 2018

Rehabilitating the brain through meditation and electrical stimulation

Publication date: Available online 31 August 2018

Source: Cortex

Author(s): Michael I. Posner

Abstract

This paper is a review of our recent studies and ideas related to the neuropsychological issues that Robert Rafal and I worked together to understand attention and hopefully improve it in a variety of patients. Rehabilitation is also a goal of my current research to determine if non invasive stimuli can improve white matter in humans. We have found that fractional anisotropy (FA) is improved in pathways surrounding the anterior cingulate cortex (ACC) following two week to four weeks of meditation training. We hypothesized that the frontal theta increased following meditation training might be a cause of the improved connectivity. This was confirmed by a mouse study using optogenetics to impose theta rhythms in the ACC. We have evidence that electrical stimulation while performing a task that activates the ACC can also increase theta. We plan studies to determine whether two to four weeks of stimulation can improve FA in pathways surrounding the anterior cingulate.



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