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Neuromodulation. 2012 Jul;15(4):306-15. doi: 10.1111/j.1525-1403.2012.00481.x. Epub 2012 Jul 10.

High-resolution modeling assisted design of customized and individualized transcranial direct current stimulation protocols.

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  • 1Department of Biomedical Engineering, The City College of New York of CUNY, New York, NY 10031, USA.

Abstract

OBJECTIVES:

Transcranial direct current stimulation (tDCS) is a neuromodulatory technique that delivers low-intensity currents facilitating or inhibiting spontaneous neuronal activity. tDCS is attractive since dose is readily adjustable by simply changing electrode number, position, size, shape, and current. In the recent past, computational models have been developed with increased precision with the goal to help customize tDCS dose. The aim of this review is to discuss the incorporation of high-resolution patient-specific computer modeling to guide and optimize tDCS.

METHODS:

In this review, we discuss the following topics: 1) The clinical motivation and rationale for models of transcranial stimulation is considered pivotal in order to leverage the flexibility of neuromodulation; 2) the protocols and the workflow for developing high-resolution models; 3) the technical challenges and limitations of interpreting modeling predictions; and 4) real cases merging modeling and clinical data illustrating the impact of computational models on the rational design of rehabilitative electrotherapy.

CONCLUSIONS:

Though modeling for noninvasive brain stimulation is still in its development phase, it is predicted that with increased validation, dissemination, simplification, and democratization of modeling tools, computational forward models of neuromodulation will become useful tools to guide the optimization of clinical electrotherapy.

© 2012 International Neuromodulation Society.

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