Magnetic resonance electrical impedance tomography (MREIT) is an innovate potential technique for imaging neural activity. To test its capability, we used salamander retina as a neuronal activity source. The neuronal activity activation was modulated by light, which enables us to compare the result between with and without neuronal activity. After obtained phase images, we expected that the standard deviation of phase in the region of interest (ROI) for the experiment group with neuronal activity is higher than that for the group without activity.
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