EEGdashOpenNeuroDS004635
Iss. 4635 · 48 subjects · 48 recordings · CC0
Dataset Brief · Gaffrey Lab Infant Microstates Reliability

DS004635: eeg dataset, 48 subjects#

Gaffrey Lab Infant Microstates Reliability

Citation: Armen Bagdasarov, Michael S. Gaffrey (—). Gaffrey Lab Infant Microstates Reliability. 10.18112/openneuro.ds004635.v3.1.0

48-participant EEG dataset — Gaffrey Lab Infant Microstates Reliability.

EEG · 129 ch1000 HzBIDS 1.8.0Task · restingHealthyMultisensoryAttention
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 DS004635

dataset = DS004635(cache_dir="./data")
# Get the raw object of the first recording
raw = dataset.datasets[0].raw
print(raw.info)

Filter by subject

dataset = DS004635(cache_dir="./data", subject="01")

Advanced query

dataset = DS004635(
    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{ds004635,
  title = {Gaffrey Lab Infant Microstates Reliability},
  author = {Armen Bagdasarov and Michael S. Gaffrey},
  doi = {10.18112/openneuro.ds004635.v3.1.0},
  url = {https://doi.org/10.18112/openneuro.ds004635.v3.1.0},
}
§ 02Study · The README

About This Dataset#

Participants were 48, 5-10-month-old infants (27 male). All research was approved by the Duke University Health System Institutional Review Board and carried out in accordance with the Declaration of Helsinki. Caregivers provided informed consent, and compensation was provided for their participation. Infants sat on their caregiver’s lap and watched up to 15 minutes of relaxing videos with sound (i.e., 10, 90-second videos separated by breaks during which caregivers could play with their infant). Before each video started, an attention grabber (i.e., three-second video of a noisy rattle) directed the infant’s attention to the screen. Videos were presented with E-Prime software (Psychological Software Tools, Pittsburgh, PA). Caregivers were instructed to silently sit still during videos. If infants shifted their attention away from the screen, caregivers were permitted to re-direct their attention only by pointing to the screen. EEG was recorded at 1000 Hertz (Hz) and referenced to the vertex (channel Cz) using a 128-channel HydroCel Geodesic Sensor Net (Electrical Geodesics, Eugene, OR). Impedances were maintained below 50 kilohms throughout the EEG session. For more information, visit: gaffreylab/EEG-Microstate-Analysis-Tutorial

§ 03Cohort · Participants

Cohort#

Dataset Statistics#

Age distribution (n=48, range 5–10 yr, mean 7.6 yr · sex per subject not reported)

510

Sex composition

48
subjects
Female
21
Male
27
F : M ratio
0.78 : 1
44% female · n = 48 subjects with reported sex.

Channel counts: 129 ch (n=48 recordings)

Sampling frequencies: 1000.0 Hz (n=47 recordings)

Total recording duration: 16 h 50 min

§ 04Signal · Electrodes & trace

Signal · Electrodes & live trace#

Fig. 01 Signal & montage 129 ch · EEG · 1000 Hz · 48 subjects, 48 recordings
Live trace viewer — sub-S38 · task-resting

Showing one representative recording out of 48 subjects and 48 recordings in this dataset. Browse the full set on OpenNeuro; drop any other _eeg.{set,edf,bdf,vhdr} file onto the viewer (or pass ?eeg=<url>) to inspect it.

Electrode layout — EEG · 129 sensors — 129 channels

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 — DS004635
§ 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

DS004635

Title

Gaffrey Lab Infant Microstates Reliability

Author (year)

Bagdasarov2023

Canonical

Importable as

DS004635, Bagdasarov2023

Year

Authors

Armen Bagdasarov, Michael S. Gaffrey

License

CC0

Citation / DOI

doi:10.18112/openneuro.ds004635.v3.1.0

Source links

OpenNeuro | NeMAR | Source URL

Copy-paste BibTeX
@dataset{ds004635,
  title = {Gaffrey Lab Infant Microstates Reliability},
  author = {Armen Bagdasarov and Michael S. Gaffrey},
  doi = {10.18112/openneuro.ds004635.v3.1.0},
  url = {https://doi.org/10.18112/openneuro.ds004635.v3.1.0},
}
§ 06API · Programmatic access

API Reference#

Signature
eegdash.dataset
class
eegdash.dataset.DS004635(cache_dir, query=None, s3_bucket=None, **kwargs)
Bases: EEGDashDataset
Author (year)Bagdasarov2023
Canonical
Importable asDS004635 · Bagdasarov2023
Sourceeegdash/dataset/registry.py · [source ↗]
class eegdash.dataset.DS004635(cache_dir: str, query: dict | None = None, s3_bucket: str | None = None, **kwargs)[source]#

Gaffrey Lab Infant Microstates Reliability

Study:

ds004635 (OpenNeuro)

Author (year):

Bagdasarov2023

Canonical:

Also importable as: DS004635, Bagdasarov2023.

Modality: eeg. Subjects: 48; recordings: 48; 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/ds004635 NeMAR dataset: https://nemar.org/dataexplorer/detail?dataset_id=ds004635 DOI: https://doi.org/10.18112/openneuro.ds004635.v3.1.0 NEMAR citation count: 2

Examples

>>> from eegdash.dataset import DS004635
>>> dataset = DS004635(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 FacePre-bundled mirror at EEGDash/ds004635 · pull with datasets.load_dataset("EEGDash/ds004635").huggingface
Croissant 1.0Machine-readable JSON-LD descriptorDS004635.croissant.json (MLCommons schema, ingestible by PyTorch / TensorFlow / JAX).mlcommons
Examples using EEGDashcurated · start here

Swap any load_dataset(...) call for ds004635 to reproduce the tutorial on this dataset.

Citation

Armen Bagdasarov, Michael S. Gaffrey (n.d.). Gaffrey Lab Infant Microstates Reliability. 10.18112/openneuro.ds004635.v3.1.0

Provenance

¹Contributed to openneuro in BIDS format.

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

³Persistent identifier: 10.18112/openneuro.ds004635.v3.1.0.

BIDS
BIDS 1.8.0
Sidecars
events · channels · electrodes · coordsystem · eeg.json
Machine-readable

See Also#