ON005261: meg dataset, 17 subjects#
Gloups_MEG
Citation: Snezana Todorovic, Elin Runnqvist, Valerie Chanoine, Jean-Michel Badier (2019). Gloups_MEG. 10.82901/nemar.on005261
17-participant MEG dataset — Gloups_MEG.
Quickstart#
Install
pip install eegdash
Access the data
from eegdash.dataset import ON005261
dataset = ON005261(cache_dir="./data")
# Get the raw object of the first recording
raw = dataset.datasets[0].raw
print(raw.info)
Filter by subject
dataset = ON005261(cache_dir="./data", subject="01")
Advanced query
dataset = ON005261(
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{on005261,
title = {Gloups_MEG},
author = {Snezana Todorovic and Elin Runnqvist and Valerie Chanoine and Jean-Michel Badier},
doi = {10.82901/nemar.on005261},
url = {https://doi.org/10.82901/nemar.on005261},
}
About This Dataset#
README
Seventeen adult participants completed a learning task and a resting-state condition during MEG recording (4D NeuroImaging system with 248 magnetometer channels).
Current dataset: OpenNeuro MEG Dataset ds005261 (Gloups_MEG, https://openneuro.org/datasets/ds005261/versions/2.0.0; see Todorović et al., in revision).
The same participants performed an identical learning task during fMRI scanning.
Related dataset: OpenNeuro fMRI Dataset ds004597 (Gloups, https://openneuro.org/datasets/ds004597/versions/2.0.0; see Todorović et al., 2023). Note: Participant identifiers differ between the fMRI and MEG datasets. For details, refer to Table 1 in Todorović et al., in revision.
References MNE-BIDS
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 Niso, G., Gorgolewski, K. J., Bock, E., Brooks, T. L., Flandin, G., Gramfort, A., Henson, R. N., Jas, M., Litvak, V., Moreau, J., Oostenveld, R., Schoffelen, J., Tadel, F., Wexler, J., Baillet, S. (2018). MEG-BIDS, the brain imaging data structure extended to magnetoencephalography. Scientific Data, 5, 180110. https://doi.org/10.1038/sdata.2018.110 Todorović, S., Anton, J.-L., Sein, J., Nazarian, B., Chanoine, V., Rauchbauer, B., Kotz, S. A., & Runnqvist, E. (2023). Cortico-Cerebellar Monitoring of Speech Sequence Production. Neurobiology of Language, 1–21.
Todorović, S., Chanoine, V., Nazarian, B., Badier, J-M., Kanzari, K., Brovelli, A., Kotz, S. A., & Runnqvist, E. (in revision). Dataset for Evaluating the Production of Phonotactically Legal and Illegal Pseudowords. Scientific Data.
Cohort#
Dataset Statistics#
Age distribution by gender (n=17, range 21–34 yr, mean 25.9 yr)
Sex composition
Channel counts (ch)
Sampling frequencies (Hz)
Total recording duration: 3 h 2 min
Signal · Electrodes & live trace#
Live trace viewer — sub-01 · task-gloups · run-02
Showing one representative recording out of
17 subjects and 128 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.
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
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.
Full dataset metadata table
Dataset ID |
|
Title |
Gloups_MEG |
Author (year) |
— |
Canonical |
— |
Importable as |
|
Year |
2019 |
Authors |
Snezana Todorovic, Elin Runnqvist, Valerie Chanoine, Jean-Michel Badier |
License |
CC0 |
Citation / DOI |
|
Source links |
OpenNeuro | NeMAR | Source URL |
Copy-paste BibTeX
@dataset{on005261,
title = {Gloups_MEG},
author = {Snezana Todorovic and Elin Runnqvist and Valerie Chanoine and Jean-Michel Badier},
doi = {10.82901/nemar.on005261},
url = {https://doi.org/10.82901/nemar.on005261},
}
API Reference#
eegdash.datasetEEGDashDataset- class eegdash.dataset.ON005261(cache_dir: str, query: dict | None = None, s3_bucket: str | None = None, **kwargs)[source]#
Gloups_MEG
- Study:
on005261(NeMAR)- Author (year):
nan- Canonical:
—
Also importable as:
ON005261,nan.Modality:
meg. Subjects: 17; recordings: 128; tasks: 2.- 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
Notes
Each item is a recording; recording-level metadata are available via
dataset.description.querysupports MongoDB-style filters on fields inALLOWED_QUERY_FIELDSand is combined with the dataset filter. Dataset-specific caveats are not provided in the summary metadata.References
OpenNeuro dataset: https://openneuro.org/datasets/on005261 NeMAR dataset: https://nemar.org/dataexplorer/detail?dataset_id=on005261 DOI: https://doi.org/10.82901/nemar.on005261
Examples
>>> from eegdash.dataset import ON005261 >>> dataset = ON005261(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.
BaseDataset from braindecode — windowed via create_windows_from_events.braindecodeDataLoader; supports parallel workers and on-the-fly augmentations.pytorch
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 on005261 to reproduce the tutorial on this dataset.
Citation
Snezana Todorovic, Elin Runnqvist, Valerie Chanoine, Jean-Michel Badier (2019). Gloups_MEG. 10.82901/nemar.on005261
Provenance
¹Contributed to nemar in BIDS format.
²Curated & ingested by the EEGDash catalog; see CITATION.cff for canonical reference.
³Persistent identifier: 10.82901/nemar.on005261.
See Also#
eegdash.dataset.EEGDashDataseteegdash.dataset