Intuition
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Intuition

Science

Transcranial Direct Current Stimulation of the Brain

Photo by Skye Studios on Unsplash
The strength of the electric field on the surface of the brain during tDCS. The box indicates the position of the anode on the scalp. The current is 1 milliamp. (From Miranda et al. NeuroImage 70:48–58, 2013)
During transcranial direct current stimulation, the electric field (red curves) is large in the scalp, and relatively small in the brain.

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Brad Roth

Professor of Physics at Oakland University and coauthor of the textbook Intermediate Physics for Medicine and Biology.