EEGdash›OpenNeuro›DS003352
Iss. 3352 · 18 subjects · 138 recordings · CC0
Dataset Brief · 1 - Light Pink Spiral

DS003352: meg dataset, 18 subjects#

1 - Light Pink Spiral

Citation: Katherine Hermann, Isabelle Rosenthal, Shridhar R. Singh, Dimitrios Pantazis, Bevil R. Conway (—). 1 - Light Pink Spiral. 10.18112/openneuro.ds003352.v1.0.0

18-participant MEG dataset — 1 - Light Pink Spiral.

Data & curation Katherine Hermann · Isabelle Rosenthal · Shridhar R. Singh · Dimitrios Pantazis · Bevil R. Conway
MEG · 323 ch1000 HzBIDS 1.2.2Task · ColorSpirals2 sessionsHealthyVisualPerception
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 DS003352

dataset = DS003352(cache_dir="./data")
# Get the raw object of the first recording
raw = dataset.datasets[0].raw
print(raw.info)

Filter by subject

dataset = DS003352(cache_dir="./data", subject="01")

Advanced query

dataset = DS003352(
    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{ds003352,
  title = {1 - Light Pink Spiral},
  author = {Katherine Hermann and Isabelle Rosenthal and Shridhar R. Singh and Dimitrios Pantazis and Bevil R. Conway},
  doi = {10.18112/openneuro.ds003352.v1.0.0},
  url = {https://doi.org/10.18112/openneuro.ds003352.v1.0.0},
}
§ 02Study · The README

About This Dataset#

Stimuli include eight different square wave spiral gratings subtending 10 degrees of visual angle as well as the color words “blue” and “green.” The color words appeared as white on a gray background. Each stimulus appeared on the screen for 116 ms. The triggers or event ID’s of each stimulus are as follows:

1 - Light Pink Spiral 2 - Dark Pink Spiral 3 - Light Blue Spiral 4 - Dark Blue Spiral 5 - Light Green Spiral 6 - Dark Green Spiral 7 - Light Orange Spiral 8 - Dark Orange Spiral 9 - “green” 10 - “blue”

§ 03Cohort · Participants

Cohort#

Dataset Statistics#

Age distribution by gender (n=18, range 17–26 yr, mean 18.2 yr)

1525
Male · 18

Sex composition

18
subjects
Male
18
HandednessRight · 18

Channel counts: 323 ch (n=138 recordings)

Sampling frequencies: 1000.0 Hz (n=138 recordings)

Total recording duration: 52 h

§ 04Signal · Electrodes & trace

Signal · Electrodes & live trace#

Fig. 01 Signal & montage 323 ch · MEG · 1000 Hz · 18 subjects, 138 recordings
Live trace viewer — sub-13 · ses-02 · task-ColorSpirals · run-02

Showing one representative recording out of 18 subjects and 138 recordings in this dataset. Browse the full set on OpenNeuro; drop any other _meg.{set,edf,bdf,vhdr} file onto the viewer (or pass ?meg=<url>) to inspect it.

Electrode layout — MEG · 306 sensors — 306 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.

NEMAR pipeline statistics — DS003352
HED event descriptors word cloud HED event descriptors word cloud — DS003352
§ 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

DS003352

Title

1 - Light Pink Spiral

Author (year)

Hermann2020

Canonical

—

Importable as

DS003352, Hermann2020

Year

—

Authors

Katherine Hermann, Isabelle Rosenthal, Shridhar R. Singh, Dimitrios Pantazis, Bevil R. Conway

License

CC0

Citation / DOI

10.18112/openneuro.ds003352.v1.0.0

Source links

OpenNeuro | NeMAR | Source URL
Copy-paste BibTeX
@dataset{ds003352,
  title = {1 - Light Pink Spiral},
  author = {Katherine Hermann and Isabelle Rosenthal and Shridhar R. Singh and Dimitrios Pantazis and Bevil R. Conway},
  doi = {10.18112/openneuro.ds003352.v1.0.0},
  url = {https://doi.org/10.18112/openneuro.ds003352.v1.0.0},
}
§ 06API · Programmatic access

API Reference#

Signature
eegdash.dataset
class
eegdash.dataset.DS003352(cache_dir, query=None, s3_bucket=None, **kwargs)
Bases: EEGDashDataset
Author (year)Hermann2020
Canonical—
Importable asDS003352 · Hermann2020
Sourceeegdash/dataset/registry.py · [source ↗]
class eegdash.dataset.DS003352(cache_dir: str, query: dict | None = None, s3_bucket: str | None = None, **kwargs)[source]#

1 - Light Pink Spiral

Study:

ds003352 (OpenNeuro)

Author (year):

Hermann2020

Canonical:

—

Also importable as: DS003352, Hermann2020.

Modality: meg; Experiment type: Perception; Subject type: Healthy. Subjects: 18; recordings: 138; 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/ds003352 NeMAR dataset: https://nemar.org/dataexplorer/detail?dataset_id=ds003352 DOI: https://doi.org/10.18112/openneuro.ds003352.v1.0.0 NEMAR citation count: 4

Examples

>>> from eegdash.dataset import DS003352
>>> dataset = DS003352(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
BaseConcatDatasetEach record is a lazy BaseDataset from braindecode — windowed via create_windows_from_events.braindecode
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/ds003352 · pull with datasets.load_dataset("EEGDash/ds003352").huggingface
Croissant 1.0Machine-readable JSON-LD descriptor — DS003352.croissant.json (MLCommons schema, ingestible by PyTorch / TensorFlow / JAX).mlcommons
Examples using EEGDashcurated · start here
Find datasets with the EEGDash APIQuery the catalogue, filter by task or modality, list candidates.Load one EEG recordingResolve a single record to an MNE Raw with channels and events.EEG recording to PyTorch DataLoaderWrap braindecode windows in a DataLoader for model training.Preprocess EEG and create windowsFilter, resample, epoch — and persist the windowed dataset.Save and reload prepared dataCache a windowed dataset to disk and reattach it without recompute.Download a dataset locallyPrefetch BIDS files to a local cache and validate the layout.

Swap any load_dataset(...) call for ds003352 to reproduce the tutorial on this dataset.

Citation

Katherine Hermann, Isabelle Rosenthal, Shridhar R. Singh, Dimitrios Pantazis, Bevil R. Conway (n.d.). 1 - Light Pink Spiral. 10.18112/openneuro.ds003352.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.ds003352.v1.0.0.

BIDS
BIDS 1.2.2
Sidecars
events · channels · coordsystem
Machine-readable
schema.org/Dataset · Croissant

See Also#