EEGdashOpenNeuroDS003518
Iss. 3518 · 110 subjects · 137 recordings · CC0
Dataset Brief · EEG

DS003518: eeg dataset, 110 subjects#

EEG: Simon Conflict w/ Reinforcement + Cabergoline Challenge

Citation: James F Cavanagh, Michael J Frank (20). EEG: Simon Conflict w/ Reinforcement + Cabergoline Challenge. 10.18112/openneuro.ds003518.v1.1.0

110-participant EEG dataset — EEG: Simon Conflict w/ Reinforcement + Cabergoline Challenge.

EEG · 64 ch500 HzBIDS 1.1.1Task · SimonConflict2 sessionsHealthyVisualClinical/Intervention
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 DS003518

dataset = DS003518(cache_dir="./data")
# Get the raw object of the first recording
raw = dataset.datasets[0].raw
print(raw.info)

Filter by subject

dataset = DS003518(cache_dir="./data", subject="01")

Advanced query

dataset = DS003518(
    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{ds003518,
  title = {EEG: Simon Conflict w/ Reinforcement + Cabergoline Challenge},
  author = {James F Cavanagh and Michael J Frank},
  doi = {10.18112/openneuro.ds003518.v1.1.0},
  url = {https://doi.org/10.18112/openneuro.ds003518.v1.1.0},
}
§ 02Study · The README

About This Dataset#

Simon conflict task with cost of conflict reinforcement manipulation. Study 1: 80 healthy participants (2 removed) + 5 placebo session from a pilot of the drug study. Total n=83. Study 2: 30 healthy participants (3 dropout) in a double-blind drug study. Total n=27. Drug was Cabergoline 1.25 mg. Study 1 subjects had IDs 101-180 and the 5 placebo were 301/401 - 305/405. Study 2 subjects had IDs 305/405 - 330/430. The dual numbers were for session: 300s were first session, 400s were second session. Here we have simply put them in as session 1 and session 2. So Joe Smith would have been 305 on visit 1, then 405 on visit 2. If he got cab first we indicated that in the Sess1_Drug column. EEG published here: 10.1038/ncomms6394. Task included in Matlab programming language. Data collected circa 2012-2013 in Laboratory for Neural Computation & Cognition at Brown. Check the .xls sheet under code folder for more meta data. Triggers are complicated. See CC_Triggers.mat under code folder. A few old analysis scripts are included. - James F Cavanagh 02/15/2021

§ 03Cohort · Participants

Cohort#

Dataset Statistics#

Age distribution by gender (n=110, range 18–30 yr, mean 20.4 yr)

15202530
Female · 64Male · 46

Sex composition

110
subjects
Female
64
Male
46
F : M ratio
1.39 : 1
58% female · n = 110 subjects with reported sex.

Channel counts: 64 ch (n=137 recordings)

Sampling frequencies: 500.0 Hz (n=137 recordings)

Total recording duration: 89 h

§ 04Signal · Electrodes & trace

Signal · Electrodes & live trace#

Fig. 01 Signal & montage 64 ch · EEG · 500 Hz · 110 subjects, 137 recordings
Live trace viewer — sub-021 · ses-01 · task-SimonConflict

Showing one representative recording out of 110 subjects and 137 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 — DS003518
§ 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

DS003518

Title

EEG: Simon Conflict w/ Reinforcement + Cabergoline Challenge

Author (year)

Cavanagh2021_Simon_Conflict

Canonical

Importable as

DS003518, Cavanagh2021_Simon_Conflict

Year

20

Authors

James F Cavanagh, Michael J Frank

License

CC0

Citation / DOI

10.18112/openneuro.ds003518.v1.1.0

Source links

OpenNeuro | NeMAR | Source URL

Copy-paste BibTeX
@dataset{ds003518,
  title = {EEG: Simon Conflict w/ Reinforcement + Cabergoline Challenge},
  author = {James F Cavanagh and Michael J Frank},
  doi = {10.18112/openneuro.ds003518.v1.1.0},
  url = {https://doi.org/10.18112/openneuro.ds003518.v1.1.0},
}
§ 06API · Programmatic access

API Reference#

Signature
eegdash.dataset
class
eegdash.dataset.DS003518(cache_dir, query=None, s3_bucket=None, **kwargs)
Bases: EEGDashDataset
Author (year)Cavanagh2021_Simon_Conflict
Canonical
Importable asDS003518 · Cavanagh2021_Simon_Conflict
Sourceeegdash/dataset/registry.py · [source ↗]
class eegdash.dataset.DS003518(cache_dir: str, query: dict | None = None, s3_bucket: str | None = None, **kwargs)[source]#

EEG: Simon Conflict w/ Reinforcement + Cabergoline Challenge

Study:

ds003518 (OpenNeuro)

Author (year):

Cavanagh2021_Simon_Conflict

Canonical:

Also importable as: DS003518, Cavanagh2021_Simon_Conflict.

Modality: eeg. Subjects: 110; recordings: 137; 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/ds003518 NeMAR dataset: https://nemar.org/dataexplorer/detail?dataset_id=ds003518 DOI: https://doi.org/10.18112/openneuro.ds003518.v1.1.0 NEMAR citation count: 0

Examples

>>> from eegdash.dataset import DS003518
>>> dataset = DS003518(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/ds003518 · pull with datasets.load_dataset("EEGDash/ds003518").huggingface
Croissant 1.0Machine-readable JSON-LD descriptorDS003518.croissant.json (MLCommons schema, ingestible by PyTorch / TensorFlow / JAX).mlcommons
Examples using EEGDashcurated · start here

Swap any load_dataset(...) call for ds003518 to reproduce the tutorial on this dataset.

Citation

James F Cavanagh, Michael J Frank (20). EEG: Simon Conflict w/ Reinforcement + Cabergoline Challenge. 10.18112/openneuro.ds003518.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.ds003518.v1.1.0.

BIDS
BIDS 1.1.1
Sidecars
events · events.json · channels · electrodes · coordsystem · eeg.json
Machine-readable

See Also#