Neurofeedback (EEG-Based)

Insufficient evidence / under studyC/DgradePlausibility · PlausibleNeuromodulation

The instructive counter-case to HRV biofeedback: a real EEG signal and a real training loop, but in ADHD — its best-studied indication — the benefit largely disappears under blinded assessment. Real signal, real loop, and an effect that tracks who is doing the rating. Keep it adjacent to HRV biofeedback; the two are mirror images.

Origin & lineage

EEG operant-conditioning lineage (Kamiya, Sterman, and others), 1960s–.

Claimed mechanism

Operant conditioning of EEG rhythms via real-time feedback is claimed to train self-regulation of brain activity.

Plausibility

Plausible–weak; the effect attenuates under blinding.

Evidence — grade C/D

Sonuga-Barke / Cortese 2013 (Am J Psychiatry; SR+MA of ADHD RCTs): effects on core symptoms are substantially attenuated to non-significant under probably-blinded assessment. Real signal, real loop — but the outcome is sensitive to the rater, the mirror image of HRV biofeedback.

Market

Makers: Numerous clinical / consumer EEG-NF makers.
Models: Clinical EEG-neurofeedback; consumer headsets.
Price: Consumer $200–1K; clinical higher.

Kernel — keep vs set aside

Keep — real substrate

A real EEG signal and a real operant training loop.

Set aside — claim

In the best-studied indication (ADHD) the benefit largely vanishes under blinded assessment — the effect tracks the rater, not the training.

Regulatory status by jurisdiction

Registration or clearance is a market-access fact, never proof of efficacy.

US — FDA	EEG biofeedback devices; claims vary by jurisdiction.
EU — MDR	CE (varies).
Russia	—
China — NMPA	—
Australia — TGA	—

Sources

https://pubmed.ncbi.nlm.nih.gov/23360949/