nm000276 NEMAR-native dataset

SWEC iEEG Dataset

Long-term pre-surgical intracranial EEG (iEEG) recordings from 50 patients with pharmacoresistant epilepsy, acquired at the Sleep-Wake-Epilepsy-Center of Inselspital, University of Bern, in collaboration with ETH Zurich. The dataset comprises about 6672 hours of continuous recording with 460 expert-annotated electrographic seizures. Data are fully anonymized, with channel labels and electrode locations withheld, and are provided in BIDS format.

IEEG

Issues GitHub

Download this dataset

dataset 3945.3 GB exceeds 100.0 GB archive limit; use direct download. Use one of the streaming methods below — all resumable. Full download guide →

NEMAR CLI recommended
Pulls the pinned version + annexed data and resumes cleanly. Install nemar-cli →
```
nemar dataset download nm000276
```

DataLad

Clone the dataset repo and fetch file content on demand. Docs →

datalad clone https://github.com/nemarDatasets/nm000276 nm000276
cd nm000276 && datalad get .

git-annex

Plain git + git-annex against the dataset repo. Docs →

git clone https://github.com/nemarDatasets/nm000276 nm000276
cd nm000276 && git annex get .

Direct files (wget / curl / rclone)
Every file with a stable, range-resumable URL from the manifest. Needs curl, jq, wget (or rclone/aria2c). Docs →
```
curl -s https://data.nemar.org/nm000276/v1.1.0/manifest.json | jq -r '.[].bytes_url' > urls.txt
wget -xc -i urls.txt
```

Compute on this dataset

Two routes today, with a third (in-browser one-click submission) landing soon.

NeuroScience Gateway (NSG) portal.
NSG runs EEGLAB / Brainstorm / MNE pipelines on supercomputing time donated by SDSC. Create an account, point a job at this dataset's S3 prefix (s3://nemar/nm000276), and submit.
nsgportal.org →
Local processing with nemar-cli.
Pull the dataset to your machine and run any toolbox locally. Honors the published version pinning.
```
npm install -g nemar-cli
nemar dataset clone nm000276
cd nm000276 && nemar dataset get
```
Just the files.
rclone, aria2c, or any HTTPS client works against data.nemar.org/nm000276/ — the manifest carries presigned S3 URLs.

Direct compute access is coming soon. One-click NSG submission from this page is scoped for a follow-up phase. Tracked on nemarOrg/website#6.

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Files

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How to use the data (for agentic research) license, citation, download commands

What it is

Modalities: IEEG
Participants: 50
Size: 3.85 TB
Tasks: ltm

License and terms

License: CDLA-Permissive-2.0
Recommended citation: Carzaniga, F., Hersche, M., Sebastian, A., Schindler, K., & Rahimi, A. (2026). SWEC iEEG Dataset (Version v1.1.0) [Data set]. NEMAR. https://doi.org/10.82901/nemar.nm000276
Reference: https://doi.org/10.48550/arXiv.2506.20354

Where the bytes are

Latest version (always current): https://data.nemar.org/nm000276/latest/
This version (v1.1.0): https://data.nemar.org/nm000276/v1.1.0/

How to download

The dataset: nemar dataset download nm000276 Clones and fetches in one step. Content under stimuli/ and derivatives/ is skipped by default because those trees can be large; add --stimuli --derivatives for the whole thing.
A subset, one step: nemar dataset download nm000276 --subjects sub-01,02 Also filters by --sessions, --tasks, --runs, --datatypes, --include and --exclude.
A subset, step 1: nemar dataset clone nm000276 Clones git-annex pointers only; fetches no file content. Creates ./nm000276.
A subset, step 2: cd nm000276 The get command below reads the clone's annex, so it only works from inside the clone.
A subset, step 3: nemar dataset get <files> Pulls the files you actually need. Skips stimuli/ and derivatives/ unless the path you ask for is under one of them.
One small file: https://data.nemar.org/nm000276/v1.1.0/participants.tsv A direct HTTPS fetch works for any single file.

Assess fit without downloading

Participants table: https://data.nemar.org/nm000276/v1.1.0/participants.tsv
Dataset description: https://data.nemar.org/nm000276/v1.1.0/dataset_description.json
Directory listing: https://data.nemar.org/nm000276/v1.1.0/?format=json
Catalog record: https://api.nemar.org/datasets/nm000276