Imaging of current flow in the human head during transcranial electrical therapy.

ABSTRACT:

Background

It has been assumed that effects caused by tDCS or tACS neuromodulation are due to electric current flow within brain structures. However, to date, direct current density distributions in the brains of human subjects have not been measured. Instead computational models of tDCS or tACS have been used to predict electric current and field distributions for dosimetry and mechanism analysis purposes.

Objective/hypothesis

We present the first in vivo images of electric current density distributions within the brain in four subjects undergoing transcranial electrical stimulation.

Methods

Magnetic resonance electrical impedance tomography (MREIT) techniques encode current flow in phase images. In four human subjects, we used MREIT to measure magnetic flux density

SUBMITTER: Kasinadhuni AK 

PROVIDER: S-EPMC5513732 | biostudies-literature | 2017 Jul - Aug

REPOSITORIES: biostudies-literature