Eti Ben-Simon, Ilana Podlipsky, Hadas Okon-Singer, Michal Gruberger, Dean Cvetkovic, Nathan Intrator and Talma Hendler The dark side of the alpha rhythm: fMRI evidence for induced alpha modulation during complete darkness European Journal of Neuroscience 37
In order to examine the effects of sensory processing vs. attention allocation on alpha rhythm modulation, this EEG-fMRI study used eyes open\close paradigm in light and complete darkness conditions. Using A ridge regression classifier and selective fMRI activations we were able to show that the alpha rhythm modulation is closely linked to the change in the direction of attention regardless of the presence of visual sensory input. These findings support the importance of top down processes to alpha rhythm modulation possibly as a prerequisite to its known bottom up processing of sensory input.
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