Open-Source, High-Speed and High-Resolution Data Acquisition Platform for Biopotential Recordings and Neural EIT applications

Published online October 26, 2026. Researchers describe an open-source, lower-cost platform for high-speed biopotential recording. Its measurements compared favorably with a reference system in bench, ECG, EMG and rat-nerve tests, but the paper does not validate clinical EEG use or patient outcomes.

Ravagli E, McEwan A, Aristovich KY.
Physiological Measurement · Publication date: 2026-10-26
Added to site: 2026-10-27
DOI: 10.1088/1361-6579/aeb9a0

Published online October 26, 2026. Added to Neurofeedback.com October 27, 2026.

Modalities

EEG-capable acquisition, Biopotential recording, Fast neural electrical impedance tomography

Clinical focus

Open-source hardware, Research accessibility, Signal acquisition

Population

Benchtop recordings, noninvasive ECG and EMG measurements, and rat sciatic-nerve experiments

Sample

Human and animal sample denominators are not reported in the checked abstract

Intervention / method

A battery-powered 32-channel, 24-bit platform was compared with a reference system using saline, ECG, EMG, compound-action-potential and fast neural EIT recordings

Comparator

Commercial reference acquisition device

Clinician summary

The system provides 32 simultaneous channels, 24-bit resolution, 10 kHz bandwidth and 50 kHz sampling. EMG peak amplitude and ECG-derived heart rate did not differ significantly from the reference. Rat-nerve compound action potentials were similar, baseline voltages correlated above 0.93, and neural-EIT activated-area overlap was 98.5%. Noise was higher for the new platform, 0.83 versus 0.42 microvolts, p<0.05.

How to interpret the findings

The checked abstract omits human and animal denominators and does not report human EEG validation, clinical decision accuracy, durability, electromagnetic compatibility, regulatory status or complete safety testing. The rat nerve and FN-EIT findings do not establish brain-imaging or treatment performance. Open-source availability and the claimed cost reduction require review of the complete hardware, software and licensing materials before adoption.

Equipment and disclosures

This is a custom open-source research acquisition platform assembled from off-the-shelf components. It is not presented as a BrainMaster device or as a validated clinical EEG or neurofeedback system.

Crossref lists support from a UKRI Horizon MSCA Guarantee Postdoctoral Fellowship. Competing-interest detail was not available in the checked abstract or retained Crossref record. No correction, retraction or expression-of-concern relation appeared in the retained records; this is a bounded check. AI-assisted source review.

Related evidence

Compare findings from the same clinical area, including mixed results.