Datasets:

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---
pretty_name: "Mainsah2025-B"
license: cc-by-4.0
tags:
  - eeg
  - neuroscience
  - eegdash
  - brain-computer-interface
  - pytorch
size_categories:
  - n<1K
task_categories:
  - other
---

# Mainsah2025-B

**Dataset ID:** `nm000157`

_Mainsah2025_

> **At a glance:** EEG · 19 subjects · 544 recordings · CC-BY-4.0

## Load this dataset

This repo is a **pointer**. The raw EEG data lives at its canonical source
(OpenNeuro / NEMAR); [EEGDash](https://github.com/eegdash/EEGDash) streams it
on demand and returns a PyTorch / braindecode dataset.

```python
# pip install eegdash
from eegdash import EEGDashDataset

ds = EEGDashDataset(dataset="nm000157", cache_dir="./cache")
print(len(ds), "recordings")
```

If the dataset has been mirrored to the HF Hub in braindecode's Zarr layout,
you can also pull it directly:

```python
from braindecode.datasets import BaseConcatDataset
ds = BaseConcatDataset.pull_from_hub("EEGDash/nm000157")
```


## Dataset metadata

| | |
|---|---|
| **Subjects** | 19 |
| **Recordings** | 544 |
| **Tasks (count)** | 1 |
| **Channels** | 16 (×543) |
| **Sampling rate (Hz)** | 256.00008099666394 (×205), 256.00004960640416 (×161), 256.00006152923214 (×98), 256 (×42), 256.0000879536484 (×15), 256.00010844590247 (×10), 256.00004522469607 (×3), 256.00012796007644 (×2), 256.00011633064076 (×2), 256.0001184842897 (×2), 256.00007397509813 (×2), 256.00008239793436 (×1) |
| **Total duration (h)** | 28.7 |
| **Size on disk** | 1.2 GB |
| **Recording type** | EEG |
| **Source** | nemar |
| **License** | CC-BY-4.0 |

## Links

- **DOI:** [10.13026/0byy-ry86](https://doi.org/10.13026/0byy-ry86)
- **NEMAR:** [nm000157](https://nemar.org/dataexplorer/detail?dataset_id=nm000157)
- **Browse 700+ datasets:** [EEGDash catalog](https://huggingface.co/spaces/EEGDash/catalog)
- **Docs:** <https://eegdash.org>
- **Code:** <https://github.com/eegdash/EEGDash>

---

_Auto-generated from [dataset_summary.csv](https://github.com/eegdash/EEGDash/blob/main/eegdash/dataset/dataset_summary.csv) and the [EEGDash API](https://data.eegdash.org/api/eegdash/datasets/summary/nm000157). Do not edit this file by hand — update the upstream source and re-run `scripts/push_metadata_stubs.py`._