Elsevier

Brain Stimulation

Volume 10, Issue 4, July–August 2017, Pages e25-e26
Brain Stimulation

Measurements and models of electric fields in the in vivo human brain during transcranial electric stimulation

https://doi.org/10.1016/j.brs.2017.04.022Get rights and content

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Abstract

Transcranial electric stimulation aims to stimulate the brain by applying weak electrical currents at the scalp. However, the magnitude and spatial distribution of electric fields in the human brain are unknown. Here we measure electric potentials intracranially in ten epilepsy patients and estimate electric fields across the entire brain by leveraging calibrated current-flow models. Electric field magnitudes at the cortical surface reach values of 0.4 V/m, which is at the lower limit of

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First authors contributed equally.

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