ERP CORE (Compendium of Open Resources and Experiments)

Description

TODO(confirm) — the author’s catalog does not hold this dataset (§10.1 rule 3); this page carries only the §10.2 facts until a registry stub is added (§10.11 item 8).

Curriculum role: Six paradigms yielding seven components (N170, MMN, N2pc, N400, P3, ERN, LRP); one run per paradigm per subject (sub-002 P3: 405 s)

Citation

• Paper DOI: 10.31234/osf.io/4azqm
• Dataset DOI: 10.18112/openneuro.ds003069.v1.0.0
• Reference: Kappenman, E., Farrens, J., Zhang, W., Stewart, A. X., & Luck, S. J. (2020). ERP CORE: An Open Resource for Human Event-related Potential Research. PsyArXiv.

Download and access

Field	Value
Official source	https://osf.io/thsqg/
Access class	open
Size	~58 MB per subject per paradigm (EEGLAB .set + .fdt plus BIDS sidecars); individually addressable per file
Format	eeglab_set, bids
BIDS	true
Mirrors	Per-paradigm OSF components: N170 pfde9, MMN 5q4xs, N2pc yefrq, N400 29xpq, P3 etdkz, ERN q6gwp, LRP 28e6c; BIDS-compatible raw files 9f5w7

License

• Name: CC-BY-SA-4.0
• Note (verbatim from the directory): CONTESTED at source — three statements, all verified 2026-09-18 from the primary material: the LICENSE file shipped with the data says, in the authors’ own words, ‘CC BY-SA 4.0 … if you share the resulting materials, you must distribute your contributions under the same CC BY-SA 4.0 license’; the BIDS dataset_description.json says ‘CC0’; the OSF node thsqg record says ‘CC-By Attribution 4.0 International’. Per §10.7 the most restrictive governs until the author resolves it, so CC BY-SA 4.0 with share-alike is recorded here. §13 item 15 was answered on 2026-09-18: derived assets may ship provided each one carries CC BY-SA 4.0 itself, which complies under all three readings because BY-SA is the strictest of them. Redistribution itself is permitted under all three readings; only whether derived assets must carry share-alike is in question.
• Snippets on this site: allowed — the site may ship short derived snippets and precomputed products from this dataset, labelled as derivatives (re-referenced, filtered, cropped) with citation, license and DOI.

Acquisition

Field	Value
Device	Biosemi ActiveTwo, 30 EEG + 3 EOG electrodes, 10-20 placement scheme
Device class	research-cap
Channels	30 (30 EEG + 3 EOG (sub-002 P3 channels.tsv: 30 EEG, 3 EOG, units microV))
Sampling rate (Hz)	1024
Online filters	n/a (SoftwareFilters: n/a in the BIDS sidecar)
Reference	CMS (Biosemi)
Mains frequency (Hz)	60
Paradigms	n170, mmn, n2pc, n400, p3, ern, lrp
Participants	40 (40 participants per paradigm; each paradigm is a separate OSF component with a per-subject BIDS-compatible folder)
Population	40 neurotypical adults
Clinical groups	none
Sessions	1
Durations	Six paradigms yielding seven components (N170, MMN, N2pc, N400, P3, ERN, LRP); one run per paradigm per subject (sub-002 P3: 405 s)

Used on this site

L1.5, L2.3, L2.4, L2.5, L2.6, C2, L3.1, L3.2, L3.3, L3.4, L3.5, L3.6, L3.7, C3, L4.5, L5.3, L6.2, L6.4, L6.5, L7.8, w-reference-explorer, w-threshold-tuner, w-epoch-builder, w-erp-averager, w-measurement-explorer, w-cluster-permutation-viz, w-ica-component-gallery, w-bad-channel-detective

Loader

Fetches only the stated subset. Recorded loader: helpers.load_spine('ds-erpcore', paradigm, subject) — per-file HTTPS download from OSF with a local cache.

TODO(confirm) — the catalog records no loader for this dataset.

Caveats worth knowing

• Licence is contested at source (CC BY-SA 4.0 in the dataset’s own LICENSE file, CC0 in its BIDS sidecar, CC BY 4.0 on the OSF node): the share-alike reading governs until the author decides §13 item 15, so no ERP CORE-derived asset ships yet.
• Not in the author’s catalog: acquisition facts here were read from the dataset’s own BIDS sidecars (sub-002 P3 eeg.json and channels.tsv) and the OSF node record on 2026-09-17, not from data/catalog (§10.1 rule 3). The author should add a registry entry (§10.11 item 8).
• Recorded with a Biosemi CMS/DRL reference: choose and document an explicit reference before any amplitude comparison.
• 1024 Hz native; the site’s snippets are resampled and the sidecar records source_sfreq.

Related datasets

• EEG Motor Movement/Imagery Dataset (EEGMMIDB)
• LEMON (MPI-Leipzig Mind-Brain-Body)
• Dortmund Vital Study resting EEG
• SRM Resting-state EEG
• EEG During Mental Arithmetic Tasks (EEGMAT)

# Loader recorded in the catalog: helpers.load_spine('ds-erpcore', paradigm, subject) — per-file HTTPS download from OSF with a local cache
# TODO(confirm) the exact call and the subset to fetch. Official source: https://osf.io/thsqg/