Abstract #0515
In-vivo Evidence of transcranial Direct Current Stimulation (tDCS) induced magnetic-field changes in Human Brain revealed by MRI
Mayank V Jog 1 , Robert Smith 2 , Kay Jann 2 , Walter Dunn 3 , Allan Wu 2 , and Danny JJ Wang 2
1
Biomedical Engineering, University of
California Los Angeles, Los Angeles, California, United
States,
2
Neurology,
University of California Los Angeles, Los Angeles,
California, United States,
3
Psychiatry,
University of California Los Angeles, Los Angeles,
California, United States
Transcranial Direct Current Stimulation (tDCS) is a
neuromodulation technique that affects cortical
excitability. tDCS has been shown to help with
depression, stroke and cognition. Simulations have shown
that the direct current can penetrate into the brain
parenchyma, especially in the vicinity of the
electrodes. Based on Amperes Law, we used MRI field
mapping to visualize the current induced magnetic field
changes in 12 healthy participants and observed in-vivo
evidence of the effects of tDCS penetrating through to
cortical and sub-cortical regions.
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