on002181
NEMAR copy of ds002181

CRYPTO and PROVIDE EEG Baseline Data

This dataset comprises resting-state EEG recordings collected from Bangladeshi children as part of the CRYPTO and PROVIDE studies. The data include baseline EEG measurements from two age cohorts: 36-month-old toddlers and 6-month-old infants, acquired during a 2-minute passive viewing task. These recordings were used to investigate associations between nutritional stunting and brain functional connectivity patterns in early childhood development.

EEG
Issues GitHub OpenNeuro ds002181

Download this dataset

Pick a method. Large datasets skip the zip and use the streaming methods below — all resumable. Full download guide →

  1. Download archive (.zip) — 0.0 GB

    A single zip of the published version. Best for small/medium datasets.

    Download zip

  2. NEMAR CLI recommended

    Pulls the pinned version + annexed data and resumes cleanly. Install nemar-cli → 

    nemar dataset download on002181
  3. DataLad

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

    datalad clone https://github.com/nemarDatasets/on002181 on002181
cd on002181 && datalad get .
  4. git-annex

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

    git clone https://github.com/nemarDatasets/on002181 on002181
cd on002181 && git annex get .
  5. 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/on002181/v1.0.0/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.

  1. 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/on002181), and submit.
    nsgportal.org →

  2. 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 on002181
cd on002181 && nemar dataset get
  3. Just the files.

    rclone, aria2c, or any HTTPS client works against data.nemar.org/on002181/ — 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.

Citations

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    Files

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

    What it is

    Modalities
    EEG
    Participants
    226
    Size
    151 MB
    Tasks
    Baseline

    License and terms

    License
    CC0
    Recommended citation
    Xie, W., Jensen, S., Wade, M., Kumar, S., Westerlund, A., Kakon, S., Haque, R., Petri, W. A., & Nelson, C. A. (2026). CRYPTO and PROVIDE EEG Baseline Data (Version v1.0.0) [Data set]. NEMAR. https://doi.org/10.82901/nemar.on002181

    Where the bytes are

    Latest version (always current)
    https://data.nemar.org/on002181/latest/
    This version (v1.0.0)
    https://data.nemar.org/on002181/v1.0.0/

    How to download

    The dataset
    nemar dataset download on002181 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 on002181 --subjects sub-01,02 Also filters by --sessions, --tasks, --runs, --datatypes, --include and --exclude.
    A subset, step 1
    nemar dataset clone on002181 Clones git-annex pointers only; fetches no file content. Creates ./on002181.
    A subset, step 2
    cd on002181 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/on002181/v1.0.0/participants.tsv A direct HTTPS fetch works for any single file.

    Assess fit without downloading

    Participants table
    https://data.nemar.org/on002181/v1.0.0/participants.tsv
    Dataset description
    https://data.nemar.org/on002181/v1.0.0/dataset_description.json
    Directory listing
    https://data.nemar.org/on002181/v1.0.0/?format=json
    Catalog record
    https://api.nemar.org/datasets/on002181