# Alljoined-1.6M (nm000134)

## How to use the data (for agentic research)

### What it is

- **Modalities:** EEG
- **Participants:** 20
- **Size:** 8.10 GB
- **Tasks:** images

### License and terms

- **License:** [CC-BY-NC-ND-4.0](https://creativecommons.org/licenses/by-nc-nd/4.0/)
- **Note:** No derivative works permitted (CC-BY-NC-ND-4.0).
- **Recommended citation:** Xu, J., Nunes, U. B., Jiang, W., Ryther, S., Pringle, J., Scotti, P. S., Delorme, A., & Kneeland, R. (2026). Alljoined-1.6M (Version v1.0.0) \[Data set\]. NEMAR. https://doi.org/10.82901/nemar.nm000134
- **Reference 1:** [https://doi.org/10.48550/arXiv.2508.18571](https://doi.org/10.48550/arXiv.2508.18571)
- **Reference 2:** [https://doi.org/10.82901/nemar.nm000232](https://doi.org/10.82901/nemar.nm000232)

### Where the bytes are

- **Latest version (always current):** [https://data.nemar.org/nm000134/latest/](https://data.nemar.org/nm000134/latest/)
- **This version (v1.0.0):** [https://data.nemar.org/nm000134/v1.0.0/](https://data.nemar.org/nm000134/v1.0.0/)

### How to download

- **The dataset:** `nemar dataset download nm000134`. 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 nm000134 --subjects sub-01,02`. Also filters by --sessions, --tasks, --runs, --datatypes, --include and --exclude.
- **A subset, step 1:** `nemar dataset clone nm000134`. Clones git-annex pointers only; fetches no file content. Creates ./nm000134.
- **A subset, step 2:** `cd nm000134`. 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/nm000134/v1.0.0/participants.tsv](https://data.nemar.org/nm000134/v1.0.0/participants.tsv). A direct HTTPS fetch works for any single file.

### Assess fit without downloading

- **Participants table:** [https://data.nemar.org/nm000134/v1.0.0/participants.tsv](https://data.nemar.org/nm000134/v1.0.0/participants.tsv)
- **Dataset description:** [https://data.nemar.org/nm000134/v1.0.0/dataset_description.json](https://data.nemar.org/nm000134/v1.0.0/dataset_description.json)
- **Directory listing:** [https://data.nemar.org/nm000134/v1.0.0/?format=json](https://data.nemar.org/nm000134/v1.0.0/?format=json)
- **Catalog record:** [https://api.nemar.org/datasets/nm000134](https://api.nemar.org/datasets/nm000134)