EEGdashOpenNeuroDS002691
Iss. 2691 · 20 subjects · 20 recordings · CC0
Dataset Brief · Internal attention study

DS002691: eeg dataset, 20 subjects#

Internal attention study

Citation: Arnaud Delorme, Dean Radin (—). Internal attention study. 10.18112/openneuro.ds002691.v1.1.0

20-participant EEG dataset — Internal attention study.

EEG · 32 ch250 HzBIDS v1.2.1Task · internalattentionHealthyVisualAttention
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 DS002691

dataset = DS002691(cache_dir="./data")
# Get the raw object of the first recording
raw = dataset.datasets[0].raw
print(raw.info)

Filter by subject

dataset = DS002691(cache_dir="./data", subject="01")

Advanced query

dataset = DS002691(
    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{ds002691,
  title = {Internal attention study},
  author = {Arnaud Delorme and Dean Radin},
  doi = {10.18112/openneuro.ds002691.v1.1.0},
  url = {https://doi.org/10.18112/openneuro.ds002691.v1.1.0},
}
§ 02Study · The README

About This Dataset#

This experiment has 20 subjects. Subjects asked to mentally concentrate on

a target (see published article for more information) for periods of about 15 seconds.

There are 4 verbal instructions given to subject by an automated computer

program connected to a speakerphone: - The instruction is to wait until the experiment starts - The instruction is to relax - The instruction is to get ready as the trial is about to start - The instruction is to mentally concentrate on the target

All the experiment is performed eye’s closed. Relax periods last for about 9 seconds, are then followed by a period of 6 seconds where the participants is asked to “get ready” for the trial, followed by a period of 15 seconds of concentration. This sequence is repeated 20 times for each participant.

§ 03Cohort · Participants

Cohort#

Dataset Statistics#

Age distribution by gender (n=20, range 23–66 yr, mean 46.9 yr)

2035404550556065
Other · 20

Sex composition

20
subjects
Female
15
Male
5
F : M ratio
3.00 : 1
75% female · n = 20 subjects with reported sex.

Channel counts: 32 ch (n=20 recordings)

Sampling frequencies: 250.0 Hz (n=20 recordings)

Total recording duration: 6 h 43 min

§ 04Signal · Electrodes & trace

Signal · Electrodes & live trace#

Fig. 01 Signal & montage 32 ch · EEG · 250 Hz · 20 subjects, 20 recordings
Live trace viewer — sub-019 · task-internalattention

Showing one representative recording out of 20 subjects and 20 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 · 32 sensors — 32 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 — DS002691
§ 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

DS002691

Title

Internal attention study

Author (year)

Delorme2020_Internal_attention

Canonical

Importable as

DS002691, Delorme2020_Internal_attention

Year

Authors

Arnaud Delorme, Dean Radin

License

CC0

Citation / DOI

10.18112/openneuro.ds002691.v1.1.0

Source links

OpenNeuro | NeMAR | Source URL

Copy-paste BibTeX
@dataset{ds002691,
  title = {Internal attention study},
  author = {Arnaud Delorme and Dean Radin},
  doi = {10.18112/openneuro.ds002691.v1.1.0},
  url = {https://doi.org/10.18112/openneuro.ds002691.v1.1.0},
}
§ 06API · Programmatic access

API Reference#

Signature
eegdash.dataset
class
eegdash.dataset.DS002691(cache_dir, query=None, s3_bucket=None, **kwargs)
Bases: EEGDashDataset
Author (year)Delorme2020_Internal_attention
Canonical
Importable asDS002691 · Delorme2020_Internal_attention
Sourceeegdash/dataset/registry.py · [source ↗]
class eegdash.dataset.DS002691(cache_dir: str, query: dict | None = None, s3_bucket: str | None = None, **kwargs)[source]#

Internal attention study

Study:

ds002691 (OpenNeuro)

Author (year):

Delorme2020_Internal_attention

Canonical:

Also importable as: DS002691, Delorme2020_Internal_attention.

Modality: eeg. Subjects: 20; recordings: 20; 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/ds002691 NeMAR dataset: https://nemar.org/dataexplorer/detail?dataset_id=ds002691 DOI: https://doi.org/10.18112/openneuro.ds002691.v1.1.0 NEMAR citation count: 2

Examples

>>> from eegdash.dataset import DS002691
>>> dataset = DS002691(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/ds002691 · pull with datasets.load_dataset("EEGDash/ds002691").huggingface
Croissant 1.0Machine-readable JSON-LD descriptorDS002691.croissant.json (MLCommons schema, ingestible by PyTorch / TensorFlow / JAX).mlcommons
Examples using EEGDashcurated · start here

Swap any load_dataset(...) call for ds002691 to reproduce the tutorial on this dataset.

Citation

Arnaud Delorme, Dean Radin (n.d.). Internal attention study. 10.18112/openneuro.ds002691.v1.1.0

Provenance

¹Contributed to openneuro in BIDS format.

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

³Persistent identifier: 10.18112/openneuro.ds002691.v1.1.0.

BIDS
BIDS v1.2.1
Sidecars
events · events.json · channels · electrodes · coordsystem · eeg.json
Machine-readable

See Also#