EEGdashOpenNeuroDS005868
Iss. 5868 · 48 subjects · 48 recordings · CC0
Dataset Brief · Flankers-FAR

DS005868: eeg dataset, 48 subjects#

Flankers-FAR

Citation: Brennan Terhune-Cotter, Phillip J. Holcomb, Katherine J. Midgley, Sofia E. Ortega, Emily M. Akers, Karen Emmorey (—). Flankers-FAR. 10.18112/openneuro.ds005868.v1.0.1

48-participant EEG dataset — Flankers-FAR.

EEG · 32 ch500 HzBIDS 1.8.0Task · flankersFARHealthyVisualAttention
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 DS005868

dataset = DS005868(cache_dir="./data")
# Get the raw object of the first recording
raw = dataset.datasets[0].raw
print(raw.info)

Filter by subject

dataset = DS005868(cache_dir="./data", subject="01")

Advanced query

dataset = DS005868(
    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{ds005868,
  title = {Flankers-FAR},
  author = {Brennan Terhune-Cotter and Phillip J. Holcomb and Katherine J. Midgley and Sofia E. Ortega and Emily M. Akers and Karen Emmorey},
  doi = {10.18112/openneuro.ds005868.v1.0.1},
  url = {https://doi.org/10.18112/openneuro.ds005868.v1.0.1},
}
§ 02Study · The README

About This Dataset#

Data collection took place at the NeuroCognition Laboratory (NCL) in San Diego, California under the supervision of Dr. Phillip Holcomb and Dr. Karen Emmorey. This project followed the San Diego State University’s IRB guidelines.

Participants sat in a comfortable chair in a darkened, sound-attenuated room throughout the experiment. They were given a game controller for responding to stimuli. They were instructed to watch the 24in-LCD video monitor, which was placed at a viewing distance of 60 in (152 cm).

Participants were presented with 90 four-letter real words and 90 four-letter pseudowords in white New Courier font on a black background. Each letter subtended .41 degrees of visual angle. The flanker words were separated from the center target word by 3.28 degrees of empty space on both sides. All targets and flankers were content words under a 6th grade reading level; plural words and proper nouns were excluded. All words were presented once in each of the three conditions: no flanker, identical flankers, or different flankers. There were 270 trials. Trials started with a purple fixation cross for 1000ms, followed by a white fixation cross for 500ms to prepare participants for the presentation of the stimulus. The stimulus item was then presented for 150ms, followed by a blank screen shown until participants responded via the game controller.

§ 03Cohort · Participants

Cohort#

Dataset Statistics#

Age distribution (n=48, range 21–53 yr, mean 32.4 yr · sex per subject not reported)

20253035404550

Sex composition

48
subjects
Female
26
Male
21
Other
1
F : M ratio
1.24 : 1
54% female · n = 48 subjects with reported sex.

Channel counts: 32 ch (n=48 recordings)

Sampling frequencies: 500.0 Hz (n=48 recordings)

Total recording duration: 13 h 5 min

§ 04Signal · Electrodes & trace

Signal · Electrodes & live trace#

Fig. 01 Signal & montage 32 ch · EEG · 500 Hz · 48 subjects, 48 recordings
Live trace viewer — sub-13 · task-flankersFAR

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.

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 — DS005868
§ 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

DS005868

Title

Flankers-FAR

Author (year)

TerhuneCotter2025_FAR

Canonical

Importable as

DS005868, TerhuneCotter2025_FAR

Year

Authors

Brennan Terhune-Cotter, Phillip J. Holcomb, Katherine J. Midgley, Sofia E. Ortega, Emily M. Akers, Karen Emmorey

License

CC0

Citation / DOI

doi:10.18112/openneuro.ds005868.v1.0.1

Source links

OpenNeuro | NeMAR | Source URL

Copy-paste BibTeX
@dataset{ds005868,
  title = {Flankers-FAR},
  author = {Brennan Terhune-Cotter and Phillip J. Holcomb and Katherine J. Midgley and Sofia E. Ortega and Emily M. Akers and Karen Emmorey},
  doi = {10.18112/openneuro.ds005868.v1.0.1},
  url = {https://doi.org/10.18112/openneuro.ds005868.v1.0.1},
}
§ 06API · Programmatic access

API Reference#

Signature
eegdash.dataset
class
eegdash.dataset.DS005868(cache_dir, query=None, s3_bucket=None, **kwargs)
Bases: EEGDashDataset
Author (year)TerhuneCotter2025_FAR
Canonical
Importable asDS005868 · TerhuneCotter2025_FAR
Sourceeegdash/dataset/registry.py · [source ↗]
class eegdash.dataset.DS005868(cache_dir: str, query: dict | None = None, s3_bucket: str | None = None, **kwargs)[source]#

Flankers-FAR

Study:

ds005868 (OpenNeuro)

Author (year):

TerhuneCotter2025_FAR

Canonical:

Also importable as: DS005868, TerhuneCotter2025_FAR.

Modality: eeg; Experiment type: Attention; Subject type: Healthy. 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/ds005868 NeMAR dataset: https://nemar.org/dataexplorer/detail?dataset_id=ds005868 DOI: https://doi.org/10.18112/openneuro.ds005868.v1.0.1

Examples

>>> from eegdash.dataset import DS005868
>>> dataset = DS005868(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/ds005868 · pull with datasets.load_dataset("EEGDash/ds005868").huggingface
Croissant 1.0Machine-readable JSON-LD descriptorDS005868.croissant.json (MLCommons schema, ingestible by PyTorch / TensorFlow / JAX).mlcommons
Examples using EEGDashcurated · start here

Swap any load_dataset(...) call for ds005868 to reproduce the tutorial on this dataset.

Citation

Brennan Terhune-Cotter, Phillip J. Holcomb, Katherine J. Midgley, Sofia E. Ortega, Emily M. Akers, … (n.d.). Flankers-FAR. 10.18112/openneuro.ds005868.v1.0.1

Provenance

¹Contributed to openneuro in BIDS format.

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

³Persistent identifier: 10.18112/openneuro.ds005868.v1.0.1.

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

See Also#