EEGdashOpenNeuroDS005594
Iss. 5594 · 16 subjects · 16 recordings · CC0
Dataset Brief · Alphabetic Decision Task (Arial Light Font)

DS005594: eeg dataset, 16 subjects#

Alphabetic Decision Task (Arial Light Font)

Citation: Jack E. Taylor, Rasmus Sinn, Cosimo Iaia, Christian J. Fiebach (2024). Alphabetic Decision Task (Arial Light Font). 10.18112/openneuro.ds005594.v1.0.3

16-participant EEG dataset — Alphabetic Decision Task (Arial Light Font).

EEG · 66 ch1000 HzBIDS 1.7.0Task · alphabeticdecisionHealthyVisualPerception
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 DS005594

dataset = DS005594(cache_dir="./data")
# Get the raw object of the first recording
raw = dataset.datasets[0].raw
print(raw.info)

Filter by subject

dataset = DS005594(cache_dir="./data", subject="01")

Advanced query

dataset = DS005594(
    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{ds005594,
  title = {Alphabetic Decision Task (Arial Light Font)},
  author = {Jack E. Taylor and Rasmus Sinn and Cosimo Iaia and Christian J. Fiebach},
  doi = {10.18112/openneuro.ds005594.v1.0.3},
  url = {https://doi.org/10.18112/openneuro.ds005594.v1.0.3},
}
§ 02Study · The README

About This Dataset#

Generated from raw data by MNE-BIDS (Appelhoff et al., 2019) and custom code to join to behavioural data, stimulus information, and metadata.

For full details on this dataset, see our preprint: Taylor et al. (2024) https://doi.org/10.1101/2024.11.11.622929

General notes: * An issue during recording meant that sub-05 completed the first block without data being saved. The experiment was restarted from the beginning for this participant. This participant was not included in our analyses, but the data are included in this dataset. They are also identified with the recording_restarted field in participants.tsv. * A separate issue during recording meant that EEG data for some trials were lost for sub-01, though enough trials were recorded in total to meet our criteria for inclusion in the analysis. The raw data comprised two separate recordings. In this dataset, the two recordings are concatenated end-to-end into one file. The point at which the files are joined is marked with a boundary event. This participant is identified with the recording_interrupted field in participants.tsv. * During the course of the experiment, we identified an issue with the wiring in one splitter box, which meant that voltages from channels FT7 and FC3 were swapped in the raw recorded data. We elected to keep the wiring as it was for the duration of the experiment, and then swapped the data from the two channels in the code that generated this BIDS dataset. This means that this issue has been corrected in this BIDS version of the data. * “BAD” periods (MNE term) for key presses and break periods are included in the events files. * Recording dates/times have been anonymised by shifting all recordings backwards in time by a constant number of days (same constant for all participants). This obscures information that may be used to identify participants, but preserves time-of-day information, and the relative times elapsed between different recordings.

References

Appelhoff, S., Sanderson, M., Brooks, T., Vliet, M., Quentin, R., Holdgraf, C., Chaumon, M., Mikulan, E., Tavabi, K., Höchenberger, R., Welke, D., Brunner, C., Rockhill, A., Larson, E., Gramfort, A. and Jas, M. (2019). MNE-BIDS: Organizing electrophysiological data into the BIDS format and facilitating their analysis. Journal of Open Source Software 4: (1896). https://doi.org/10.21105/joss.01896 Pernet, C. R., Appelhoff, S., Gorgolewski, K. J., Flandin, G., Phillips, C., Delorme, A., Oostenveld, R. (2019). EEG-BIDS, an extension to the brain imaging data structure for electroencephalography. Scientific Data, 6, 103. https://doi.org/10.1038/s41597-019-0104-8

§ 03Cohort · Participants

Cohort#

Dataset Statistics#

Age distribution by gender (n=16, range 20–27 yr, mean 23.1 yr)

2025
Other · 16

Sex composition

16
subjects
Female
12
Male
4
F : M ratio
3.00 : 1
75% female · n = 16 subjects with reported sex.
HandednessRight · 16

Channel counts: 66 ch (n=16 recordings)

Sampling frequencies: 1000.0 Hz (n=16 recordings)

Total recording duration: 12 h 18 min

§ 04Signal · Electrodes & trace

Signal · Electrodes & live trace#

Fig. 01 Signal & montage 66 ch · EEG · 1000 Hz · 16 subjects, 16 recordings
Live trace viewer — sub-13 · task-alphabeticdecision

Showing one representative recording out of 16 subjects and 16 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 · 64 sensors — 64 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 — DS005594
§ 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

DS005594

Title

Alphabetic Decision Task (Arial Light Font)

Author (year)

Taylor2024

Canonical

Importable as

DS005594, Taylor2024

Year

2024

Authors

Jack E. Taylor, Rasmus Sinn, Cosimo Iaia, Christian J. Fiebach

License

CC0

Citation / DOI

doi:10.18112/openneuro.ds005594.v1.0.3

Source links

OpenNeuro | NeMAR | Source URL

Copy-paste BibTeX
@dataset{ds005594,
  title = {Alphabetic Decision Task (Arial Light Font)},
  author = {Jack E. Taylor and Rasmus Sinn and Cosimo Iaia and Christian J. Fiebach},
  doi = {10.18112/openneuro.ds005594.v1.0.3},
  url = {https://doi.org/10.18112/openneuro.ds005594.v1.0.3},
}
§ 06API · Programmatic access

API Reference#

Signature
eegdash.dataset
class
eegdash.dataset.DS005594(cache_dir, query=None, s3_bucket=None, **kwargs)
Bases: EEGDashDataset
Author (year)Taylor2024
Canonical
Importable asDS005594 · Taylor2024
Sourceeegdash/dataset/registry.py · [source ↗]
class eegdash.dataset.DS005594(cache_dir: str, query: dict | None = None, s3_bucket: str | None = None, **kwargs)[source]#

Alphabetic Decision Task (Arial Light Font)

Study:

ds005594 (OpenNeuro)

Author (year):

Taylor2024

Canonical:

Also importable as: DS005594, Taylor2024.

Modality: eeg; Experiment type: Perception; Subject type: Healthy. Subjects: 16; recordings: 16; 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/ds005594 NeMAR dataset: https://nemar.org/dataexplorer/detail?dataset_id=ds005594 DOI: https://doi.org/10.18112/openneuro.ds005594.v1.0.3 NEMAR citation count: 1

Examples

>>> from eegdash.dataset import DS005594
>>> dataset = DS005594(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/ds005594 · pull with datasets.load_dataset("EEGDash/ds005594").huggingface
Croissant 1.0Machine-readable JSON-LD descriptorDS005594.croissant.json (MLCommons schema, ingestible by PyTorch / TensorFlow / JAX).mlcommons
Examples using EEGDashcurated · start here

Swap any load_dataset(...) call for ds005594 to reproduce the tutorial on this dataset.

Citation

Jack E. Taylor, Rasmus Sinn, Cosimo Iaia, Christian J. Fiebach (2024). Alphabetic Decision Task (Arial Light Font). 10.18112/openneuro.ds005594.v1.0.3

Provenance

¹Contributed to openneuro in BIDS format.

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

³Persistent identifier: 10.18112/openneuro.ds005594.v1.0.3.

BIDS
BIDS 1.7.0
Sidecars
events · events.json · channels · eeg.json
Machine-readable

See Also#