EEGdashOpenNeuroDS004579
Iss. 4579 · 139 subjects · 139 recordings · CC0
Dataset Brief · Interval Timing Task

DS004579: eeg dataset, 139 subjects#

Interval Timing Task

Citation: Arun Singh arun.singh@usd.edu, Rachel Cole rachel-cole@uiowa.edu, Arturo Espinoza arturo-espinoza@uiowa.edu, Jan R Wessel jan-wessel@uiowa.edu, Jim Cavanagh jcavanagh@unm.edu, Nandakumar Narayanan nandakumar-narayanan@uiowa.edu (—). Interval Timing Task. 10.18112/openneuro.ds004579.v1.0.0

139-participant EEG dataset — Interval Timing Task.

EEG · 63 (110), 64 (28), 66 ch500 HzBIDS v1.2.1Task · IntervalTimingParkinson'sVisualDecision-making
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 DS004579

dataset = DS004579(cache_dir="./data")
# Get the raw object of the first recording
raw = dataset.datasets[0].raw
print(raw.info)

Filter by subject

dataset = DS004579(cache_dir="./data", subject="01")

Advanced query

dataset = DS004579(
    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{ds004579,
  title = {Interval Timing Task},
  author = {Arun Singh arun.singh@usd.edu and Rachel Cole rachel-cole@uiowa.edu and Arturo Espinoza arturo-espinoza@uiowa.edu and Jan R Wessel jan-wessel@uiowa.edu and Jim Cavanagh jcavanagh@unm.edu and Nandakumar Narayanan nandakumar-narayanan@uiowa.edu},
  doi = {10.18112/openneuro.ds004579.v1.0.0},
  url = {https://doi.org/10.18112/openneuro.ds004579.v1.0.0},
}
§ 02Study · The README

About This Dataset#

This experiment includes 139 subjects: 94 individuals with Parkinsons disease,

and 45 controls. Subjects completed this IntervalTiming task (along with multiple other cognitive tasks) while EEG was recorded with a 64-channel BrainVision cap. This task presented black instructional text on the center of a white screen that read “Short interval” on 3-second interval trials and “Long interval” on 7-second interval trials. The researchers never communicated the actual interval durations to the patient. The instructions were displayed for 1 second, and the appearance of an image of a solid box in the center of the computer screen indicated the start of the interval.

The cue was displayed on the screen for the entire trial, which lasted 6 s for 3-s intervals and

14 s for 7-s intervals. The researchers instructed participants to press the keyboard spacebar when they judged the target interval to have elapsed. Participants were directed not to count, and a distractor vowel appeared at random intervals in the screen center.

§ 03Cohort · Participants

Cohort#

Dataset Statistics#

Age distribution (n=139, range 48–86 yr, mean 69.4 yr · sex per subject not reported)

455055606570758085

Channel counts (ch)

636466

Sampling frequencies: 500.0 Hz (n=139 recordings)

Total recording duration: 55 h

§ 04Signal · Electrodes & trace

Signal · Electrodes & live trace#

Fig. 01 Signal & montage 63 (110), 64 (28), 66 ch · EEG · 500 Hz · 139 subjects, 139 recordings
Live trace viewer — sub-021 · task-IntervalTiming

Showing one representative recording out of 139 subjects and 139 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 · 63 sensors — 63 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 — DS004579
§ 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

DS004579

Title

Interval Timing Task

Author (year)

Singh2023_Interval_Timing

Canonical

Importable as

DS004579, Singh2023_Interval_Timing

Year

Authors

Arun Singh arun.singh@usd.edu, Rachel Cole rachel-cole@uiowa.edu, Arturo Espinoza arturo-espinoza@uiowa.edu, Jan R Wessel jan-wessel@uiowa.edu, Jim Cavanagh jcavanagh@unm.edu, Nandakumar Narayanan nandakumar-narayanan@uiowa.edu

License

CC0

Citation / DOI

doi:10.18112/openneuro.ds004579.v1.0.0

Source links

OpenNeuro | NeMAR | Source URL

Copy-paste BibTeX
@dataset{ds004579,
  title = {Interval Timing Task},
  author = {Arun Singh arun.singh@usd.edu and Rachel Cole rachel-cole@uiowa.edu and Arturo Espinoza arturo-espinoza@uiowa.edu and Jan R Wessel jan-wessel@uiowa.edu and Jim Cavanagh jcavanagh@unm.edu and Nandakumar Narayanan nandakumar-narayanan@uiowa.edu},
  doi = {10.18112/openneuro.ds004579.v1.0.0},
  url = {https://doi.org/10.18112/openneuro.ds004579.v1.0.0},
}
§ 06API · Programmatic access

API Reference#

Signature
eegdash.dataset
class
eegdash.dataset.DS004579(cache_dir, query=None, s3_bucket=None, **kwargs)
Bases: EEGDashDataset
Author (year)Singh2023_Interval_Timing
Canonical
Importable asDS004579 · Singh2023_Interval_Timing
Sourceeegdash/dataset/registry.py · [source ↗]
class eegdash.dataset.DS004579(cache_dir: str, query: dict | None = None, s3_bucket: str | None = None, **kwargs)[source]#

Interval Timing Task

Study:

ds004579 (OpenNeuro)

Author (year):

Singh2023_Interval_Timing

Canonical:

Also importable as: DS004579, Singh2023_Interval_Timing.

Modality: eeg. Subjects: 139; recordings: 139; 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/ds004579 NeMAR dataset: https://nemar.org/dataexplorer/detail?dataset_id=ds004579 DOI: https://doi.org/10.18112/openneuro.ds004579.v1.0.0 NEMAR citation count: 1

Examples

>>> from eegdash.dataset import DS004579
>>> dataset = DS004579(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/ds004579 · pull with datasets.load_dataset("EEGDash/ds004579").huggingface
Croissant 1.0Machine-readable JSON-LD descriptorDS004579.croissant.json (MLCommons schema, ingestible by PyTorch / TensorFlow / JAX).mlcommons
Examples using EEGDashcurated · start here

Swap any load_dataset(...) call for ds004579 to reproduce the tutorial on this dataset.

Citation

Arun Singh arun.singh@usd.edu, Rachel Cole rachel-cole@uiowa.edu, Arturo Espinoza arturo-espinoza@uiowa.edu, Jan R Wessel jan-wessel@uiowa.edu, Jim Cavanagh jcavanagh@unm.edu, … (n.d.). Interval Timing Task. 10.18112/openneuro.ds004579.v1.0.0

Provenance

¹Contributed to openneuro in BIDS format.

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

³Persistent identifier: 10.18112/openneuro.ds004579.v1.0.0.

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

See Also#