Signal to Noise — A Summary Of NYC NeuroModulation 2015

Second, there’s an emerging picture of how different forms of electric brain stimulation like tDCS, tACS, and tRNS work. An emerging consensus among both mechanistic and clinical researchers seems to be that the major effect of tDCS (and to a lesser extent tRNS) is to boost plasticity in stimulated regions while tACS exhibits weak to nonexistent effects on plasticity but provides a means to interact with ongoing brain rhythms. Secondly, there’s increasing acknowledgement that even when the spatial current spread is restricted; stimulation induces very significant “network effects” through feed-forwward and feedback connections between brain regions; these effects (as well as individual variability) might explain why observing consistent physiological effects of tDCS is difficult. Finally, an increasingly popular area of interest seems to be combining tDCS with some kind of cognitive training or exercise, based on the hypothesis that tDCS-induced plasticity enhancement will be synergistic with these regiments.


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