Simultaneous recording of fMRI and electrophysiological (EP) signals, e.g. electroencephalography (EEG), electrocorticography (ECoG), and local field potentials (LFP) holds significant potential to evaluate the brain dynamics and its underlying neural circuitry across various spatiotemporal scales. However methodological challenges associated with bio-potential recording within MRI still work as a bottleneck. Here we present a miniaturized, MR-compatible device that can adaptively learn the presence of electromagnetic artifacts and can perform high fidelity EP recording (ECG, LFP, SEP etc.) wirelessly through the MR-receiver coil. The low power device provides a cheap and simple solution for recording various electrophysiological signals during concurrent fMRI.
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