EEG Explorer
Real scalp EEG recordings on the 10-20 system — play them, flip the montage, and read a real scalp map. Pause and hover the trace to inspect the field at any instant. Real open data (PhysioNet) — see credits below.
Normal
Activation
Slowing & background
Seizures
Sleep architecture
Evoked potential (ERP)
Montage
Playback
All real recordings, openly licensed, subset to the 10-20 system.
Eyes-closed / eyes-open / hand-movement — EEG Motor Movement/Imagery (eegmmidb, ODC-BY);
normal adult & healthy-older-adult backgrounds — cognitively-normal controls (MMSE 30/30) from OpenNeuro ds004504 (CC0);
mental arithmetic — EEGMAT (ODC-BY);
photic driving — OpenNeuro ds006036 (AHEPA, CC0);
Alzheimer's & frontotemporal dementia — OpenNeuro ds004504 (CC0, Miltiadous et al.);
Parkinson's resting EEG — OpenNeuro ds002778 (CC0, UC San Diego);
focal slowing (pediatric HHE) — OpenNeuro ds003555 (CC0, Cserpan et al.);
neonatal seizure — Helsinki neonatal EEG (CC-BY 4.0, 3-expert consensus);
adult focal seizure — Siena Scalp EEG (CC-BY 4.0);
pediatric seizure — CHB-MIT (ODC-BY, bipolar double-banana);
sleep stages (W / N2 / N3 / REM) — Sleep-EDF Expanded (ODbL, bipolar Fpz-Cz / Pz-Oz);
P300 oddball (trial-averaged ERP) — OpenNeuro ds003061 (CC0, Delorme auditory oddball).
Short clips (and one trial-averaged ERP) were extracted for the web; the scalp map (referential clips) interpolates the real electrode voltages.
Rendered with uPlot. Not for diagnosis.