---
pretty_name: "CHB-MIT"
license: other
tags:
  - eeg
  - neuroscience
  - eegdash
  - brain-computer-interface
  - pytorch
size_categories:
  - n<1K
task_categories:
  - other
---

# CHB-MIT

**Dataset ID:** `nm000110`

_Connolly2010_

**Canonical aliases:** `CHBMIT` · `CHB_MIT`

> **At a glance:** EEG · 24 subjects · 686 recordings · ODC-By-1.0

## 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="nm000110", cache_dir="./cache")
print(len(ds), "recordings")
```

You can also load it by canonical alias — these are registered classes in `eegdash.dataset`:

```python
from eegdash.dataset import CHBMIT
ds = CHBMIT(cache_dir="./cache")
```

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/nm000110")
```


## Dataset metadata

| | |
|---|---|
| **Subjects** | 24 |
| **Recordings** | 686 |
| **Tasks (count)** | 1 |
| **Channels** | 23 (×306), 28 (×259), 38 (×39), 22 (×36), 24 (×30), 29 (×14), 25 (×1), 31 (×1) |
| **Sampling rate (Hz)** | 256 (×686) |
| **Total duration (h)** | 982.9 |
| **Size on disk** | 42.6 GB |
| **Recording type** | EEG |
| **Source** | nemar |
| **License** | ODC-By-1.0 |

## Links

- **DOI:** [10.82901/nemar.nm000110](https://doi.org/10.82901/nemar.nm000110)
- **NEMAR:** [nm000110](https://nemar.org/dataexplorer/detail?dataset_id=nm000110)
- **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/nm000110). Do not edit this file by hand — update the upstream source and re-run `scripts/push_metadata_stubs.py`._