EEGdashNeMARON006695
Iss. 6695 · 19 subjects · 19 recordings · CC0
Dataset Brief · Validation of Sleep Staging with Forehead EEG Patch

ON006695: eeg dataset, 19 subjects#

Validation of Sleep Staging with Forehead EEG Patch

Access recordings and metadata through EEGDash.

Citation: Julie Onton, Sarah Mednick (20). Validation of Sleep Staging with Forehead EEG Patch. 10.82901/nemar.on006695

Modality: eeg Subjects: 19 Recordings: 19 License: CC0 Source: nemar

Metadata: Good (80%)

19-participant EEG dataset — Validation of Sleep Staging with Forehead EEG Patch.

BIDS 1.8.0Task · sleep
Layer 01Study
What was asked
Hypothesis, independent & dependent variables, paradigm, cohort, and the editorial caveats around what the recordings can and cannot answer.
Layer 02Signal · BIDS
What was recorded
Sidecars, channels & electrodes, coordinate system, event semantics, and quality stats from the NEMAR pipeline when available.
Layer 03Training · ML
What you can train on
Recommended access modes — MNE Raw, braindecode windows, PyTorch DataLoader — plus the targets the metadata makes addressable.
§ 01Access · Get started

Quickstart#

Install

pip install eegdash

Access the data

from eegdash.dataset import ON006695

dataset = ON006695(cache_dir="./data")
# Get the raw object of the first recording
raw = dataset.datasets[0].raw
print(raw.info)

Filter by subject

dataset = ON006695(cache_dir="./data", subject="01")

Advanced query

dataset = ON006695(
    cache_dir="./data",
    query={"subject": {"$in": ["01", "02"]}},
)

Iterate recordings

for rec in dataset:
    print(rec.subject, rec.raw.info['sfreq'])

If you use this dataset in your research, please cite the original authors.

BibTeX

@dataset{on006695,
  title = {Validation of Sleep Staging with Forehead EEG Patch},
  author = {Julie Onton and Sarah Mednick},
  doi = {10.82901/nemar.on006695},
  url = {https://doi.org/10.82901/nemar.on006695},
}
§ 02Study · The README

About This Dataset#

Curated EEG recordings for validating sleep staging from a three-electrode forehead patch against standard 33-channel polysomnography.

EEG.VisualHypnogram is manual scoring in 30-second epochs using the following integers

1 equals Wake 2 equals REM 3 equals N1 4 equals N2 5 equals N3 0 equals unknown or movement EEG.SpectralScoring is spectral staging from the forehead patch. One row per patch channel. One column per 30-second epoch (see publication).

DOI

UCSD Forehead Patch Sleep Validation Dataset

Alignment policy

The 33-channel cap data used to score polysomnography and the 3-channel patch EEG data do not always start and stop at the same clock times. CGX patch data were aligned to the cap start time based on a spreadsheet completed by the data collector, so the start may be off by a few seconds. The 3-channel EEG data were segmented into 30-second windows, and the number of these windows should approximately match the number of values in the EEG.VisualHypnogram for the same dataset. If the patch data ended up shorter than the visual hypnogram, the hypnogram was trimmed at the end to match the patch length. If the hypnogram was longer, it was left untrimmed. In general, the mismatch at the end of the recording is less than one 30-second window.

Subject exclusions

113 and 121 are excluded. The CGX patch was inadequate or unavailable.

Citation

Onton JA, Simon KC, Morehouse AB, Shuster AE, Zhang J, Peña AA, Mednick SC. Validation of spectral sleep scoring with polysomnography using forehead EEG device. Frontiers in Sleep. 2024. doi 10.3389/frsle.2024.1349537.

American Academy of Sleep Medicine. The AASM manual for the scoring of sleep and associated events. 2007 and later.

§ 03Cohort · Participants

Cohort#

Dataset Statistics#

Age distribution (n=19, range 19–29 yr, mean 22.9 yr · sex per subject not reported)

152025

Sex composition

19
subjects
Female
10
Male
9
F : M ratio
1.11 : 1
53% female · n = 19 subjects with reported sex.
§ 04Signal · Electrodes & trace

Signal · Electrodes & live trace#

Fig. 01 Signal & montage — ch · EEG · Varies · 19 subjects, 19 recordings

No scalp electrode layout is currently indexed for this dataset. Once the eegdash montage registry ingests it, the interactive viewer will appear here automatically.

NEMAR Processing Statistics#

The plots below are generated by NEMAR’s automated EEG pipeline. The histogram shows pipeline success for data cleaning and ICA decomposition, the percentage of data frames and EEG channels retained after artefact removal, line noise per channel (RMS, dB), and the age/gender distribution of participants.

HED event descriptors word cloud HED event descriptors word cloud — ON006695
§ 05Manifest · BIDS tree

Manifest#

File Explorer#

Browse the BIDS file structure of this dataset. Records are fetched on demand from the EEGDash catalog the first time you open the explorer.

Recordings
Files
Subjects
Modalities
Click to load file structure…
Full dataset metadata table

Dataset ID

ON006695

Title

Validation of Sleep Staging with Forehead EEG Patch

Author (year)

Canonical

Importable as

ON006695

Year

20

Authors

Julie Onton, Sarah Mednick

License

CC0

Citation / DOI

10.82901/nemar.on006695

Source links

OpenNeuro | NeMAR | Source URL

Copy-paste BibTeX
@dataset{on006695,
  title = {Validation of Sleep Staging with Forehead EEG Patch},
  author = {Julie Onton and Sarah Mednick},
  doi = {10.82901/nemar.on006695},
  url = {https://doi.org/10.82901/nemar.on006695},
}
§ 06API · Programmatic access

API Reference#

Signature
eegdash.dataset
class
eegdash.dataset.ON006695(cache_dir, query=None, s3_bucket=None, **kwargs)
Bases: EEGDashDataset
Author (year)
Canonical
Importable asON006695
Sourceeegdash/dataset/registry.py · [source ↗]
class eegdash.dataset.ON006695(cache_dir: str, query: dict | None = None, s3_bucket: str | None = None, **kwargs)[source]#

Validation of Sleep Staging with Forehead EEG Patch

Study:

on006695 (NeMAR)

Author (year):

Canonical:

Also importable as: ON006695.

Modality: eeg; Subject type: Unknown. Subjects: 19; recordings: 19; tasks: 1.

Parameters:
  • cache_dir (str | Path) – Directory where data are cached locally.

  • query (dict | None) – Additional MongoDB-style filters to AND with the dataset selection. Must not contain the key dataset.

  • s3_bucket (str | None) – Base S3 bucket used to locate the data.

  • **kwargs (dict) – Additional keyword arguments forwarded to EEGDashDataset.

data_dir#

Local dataset cache directory (cache_dir / dataset_id).

Type:

Path

query#

Merged query with the dataset filter applied.

Type:

dict

records#

Metadata records used to build the dataset, if pre-fetched.

Type:

list[dict] | None

Notes

Each item is a recording; recording-level metadata are available via dataset.description. query supports MongoDB-style filters on fields in ALLOWED_QUERY_FIELDS and is combined with the dataset filter. Dataset-specific caveats are not provided in the summary metadata.

References

OpenNeuro dataset: https://openneuro.org/datasets/on006695 NeMAR dataset: https://nemar.org/dataexplorer/detail?dataset_id=on006695 DOI: https://doi.org/10.82901/nemar.on006695

Examples

>>> from eegdash.dataset import ON006695
>>> dataset = ON006695(cache_dir="./data")
>>> recording = dataset[0]
>>> raw = recording.load()
__init__(cache_dir: str, query: dict | None = None, s3_bucket: str | None = None, **kwargs)[source]#
save(path: str, overwrite: bool = False, offset: int = 0)[source]#

Save datasets to files by creating one subdirectory for each dataset:

path/
    0/
        0-raw.fif | 0-epo.fif
        description.json
        raw_preproc_kwargs.json (if raws were preprocessed)
        window_kwargs.json (if this is a windowed dataset)
        window_preproc_kwargs.json  (if windows were preprocessed)
        target_name.json (if target_name is not None and dataset is raw)
    1/
        1-raw.fif | 1-epo.fif
        description.json
        raw_preproc_kwargs.json (if raws were preprocessed)
        window_kwargs.json (if this is a windowed dataset)
        window_preproc_kwargs.json  (if windows were preprocessed)
        target_name.json (if target_name is not None and dataset is raw)
Parameters:
  • path (str) –

    Directory in which subdirectories are created to store

    -raw.fif | -epo.fif and .json files to.

  • overwrite (bool) – Whether to delete old subdirectories that will be saved to in this call.

  • offset (int) – If provided, the integer is added to the id of the dataset in the concat. This is useful in the setting of very large datasets, where one dataset has to be processed and saved at a time to account for its original position.

Access modesMNE → braindecode → PyTorch → ML
.rawMNE Raw object — standard tools (filter, epoch, ICA, plot_psd).mne
DataLoaderWraps the windowed dataset into a PyTorch DataLoader; supports parallel workers and on-the-fly augmentations.pytorch
Zarr cacheOptional braindecode Zarr mirror for fast resume; persisted to cache_dir.zarr
Hugging FaceNo per-dataset mirror published yet — browse the EEGDash org listing for sibling datasets. See the datasets loader API.huggingface
Croissant 1.0Machine-readable JSON-LD descriptorON006695.croissant.json (MLCommons schema, ingestible by PyTorch / TensorFlow / JAX).mlcommons
Examples using EEGDashcurated · start here

Swap any load_dataset(...) call for on006695 to reproduce the tutorial on this dataset.

Citation

Julie Onton, Sarah Mednick (20). Validation of Sleep Staging with Forehead EEG Patch. 10.82901/nemar.on006695

Provenance

¹Contributed to nemar in BIDS format.

²Curated & ingested by the EEGDash catalog; see CITATION.cff for canonical reference.

³Persistent identifier: 10.82901/nemar.on006695.

BIDS
BIDS 1.8.0
Sidecars
not yet probed
Provenance
Machine-readable
Mirrors

See Also#