---
pretty_name: "BallSqueezingHD"
license: cc0-1.0
tags:
  - eeg
  - neuroscience
  - eegdash
  - brain-computer-interface
  - pytorch
  - motor
  - ballsqueezing
size_categories:
  - n<1K
task_categories:
  - other
authors:
  - "Yuanyuan Gao"
  - "De’Ja Rogers"
  - "Alexander von Lühmann"
  - "Antonio Ortega-Martinez"
  - "David A. Boas"
  - "Meryem A. Yücel"
---

# BallSqueezingHD

**Dataset ID:** `ds004929`

_Gao2024_

> **At a glance:** FNIRS · Motor motor · unknown · 12 subjects · 36 recordings · CC0

## 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="ds004929", 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/ds004929")
```


## Dataset metadata

| | |
|---|---|
| **Subjects** | 12 |
| **Recordings** | 36 |
| **Tasks (count)** | 1 |
| **Channels** | 200 (×36) |
| **Sampling rate (Hz)** | 8.719308035714286 (×36) |
| **Size on disk** | 302.4 MB |
| **Recording type** | FNIRS |
| **Experimental modality** | Motor |
| **Paradigm type** | Motor |
| **Population** | Unknown |
| **BIDS version** | 1.7.1 |
| **Source** | openneuro |
| **License** | CC0 |

## Tasks

- `BallSqueezing`


## People

### Authors
- Yuanyuan Gao
- De’Ja Rogers
- Alexander von Lühmann
- Antonio Ortega-Martinez
- David A. Boas
- Meryem A. Yücel _(senior)_

### Contact
- Sreekanth kura

## Funding

- NIH BRAIN Initiative (Grant No. 1U01EB029856-01)

## Links

- **DOI:** [10.18112/openneuro.ds004929.v1.0.0](https://doi.org/10.18112/openneuro.ds004929.v1.0.0)
- **OpenNeuro:** [ds004929](https://openneuro.org/datasets/ds004929)
- **Browse 700+ datasets:** [EEGDash catalog](https://huggingface.co/spaces/EEGDash/catalog)
- **Docs:** <https://eegdash.org>
- **Code:** <https://github.com/eegdash/EEGDash>

## Provenance

- **Backend:** `s3` — `s3://openneuro.org/ds004929`
- **Exact size:** 317,141,546 bytes (302.4 MB)
- **Ingested:** 2026-04-06
- **Stats computed:** 2026-04-04

---

_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/ds004929). Do not edit this file by hand — update the upstream source and re-run `scripts/push_metadata_stubs.py`._