EEGdashNeMARON003195
Iss. 3195 · 10 subjects · 20 recordings · CC0
Dataset Brief · Placebo Neuroepo multisession

ON003195: eeg dataset, 10 subjects#

Placebo Neuroepo multisession

Citation: Maria Luisa Bringas Vega, Lilia Morales Chacon, Ivonne Pedroso Ibanez (2019). Placebo Neuroepo multisession. 10.82901/nemar.on003195

10-participant EEG dataset — Placebo Neuroepo multisession.

EEG · 19 ch200 HzBIDS 1.2.02 tasks2 sessions
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 ON003195

dataset = ON003195(cache_dir="./data")
# Get the raw object of the first recording
raw = dataset.datasets[0].raw
print(raw.info)

Filter by subject

dataset = ON003195(cache_dir="./data", subject="01")

Advanced query

dataset = ON003195(
    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{on003195,
  title = {Placebo Neuroepo multisession},
  author = {Maria Luisa Bringas Vega and Lilia Morales Chacon and Ivonne Pedroso Ibanez},
  doi = {10.82901/nemar.on003195},
  url = {https://doi.org/10.82901/nemar.on003195},
}
§ 02Study · The README

About This Dataset#

The quest for neuroprotection in Parkinson’s disease (PD) has been for new compounds to slow disease progression and stable and non-invasive biomarkers to document their benefits. Neuroepo, a new formulation of EPO with low content of sialic acid reported good results in animal model and tolerance in healthy participants and PD patients.

In a double-blind randomized placebo (https://clinicaltrials.gov/ number NCT04110678) twenty-five PD patients were assigned randomly to Neuroepo (n=15) or placebo (n=10) groups we reported the tolerance of the drug. We recorded resting-state EEG before and six months after the administration of the drug. The qualitative analysis of the abnormalities of the EEG was evaluated by two experts using a Likert-type scale and a multivariate item response theory (MIRT) approach was employed to stablish the differences between groups in the two times. The quantitative EEG (qEEG) analysis was performed at the sources looking for generators of the neural activity using software VARETA and co-registering the results using the Montreal Neurological Institute Atlas. The statistical analysis between the sources was conducted using a permutation test and later a contrast method using the surfstat software between groups and before vs after condition, with Bonferroni correction for multiple comparisons.

Here in this repository we placed the raw EEG in BIDS format (Pernet, C. R. et al. EEG-BIDS, an extension to the brain imaging data structure for electroencephalography. Sci. data 6, 103 (2019). For the use of VARETA the qEEG program you can use (Bosch-Bayard, J. et al. A Quantitative EEG Toolbox for the MNI Neuroinformatics Ecosystem: Normative SPM of EEG Source Spectra. Front. Neuroinform. 14, (2020).) The EEG dataset from the different stages of processing can be requested to the authors.

§ 03Cohort · Participants

Cohort#

Dataset Statistics#

Sex composition

10
subjects
Other
10

Channel counts: 19 ch (n=20 recordings)

Sampling frequencies: 200.0 Hz (n=20 recordings)

Total recording duration: 4 h 39 min

§ 04Signal · Electrodes & trace

Signal · Electrodes & live trace#

Fig. 01 Signal & montage 19 ch · EEG · 200 Hz · 10 subjects, 20 recordings
Live trace viewer — sub-PLAC02 · ses-placebo6m · task-taskplacebo6m

Showing one representative recording out of 10 subjects and 20 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 · 19 sensors — 19 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 — ON003195
§ 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

ON003195

Title

Placebo Neuroepo multisession

Author (year)

Canonical

Importable as

ON003195

Year

2019

Authors

Maria Luisa Bringas Vega, Lilia Morales Chacon, Ivonne Pedroso Ibanez

License

CC0

Citation / DOI

10.82901/nemar.on003195

Source links

OpenNeuro | NeMAR | Source URL

Copy-paste BibTeX
@dataset{on003195,
  title = {Placebo Neuroepo multisession},
  author = {Maria Luisa Bringas Vega and Lilia Morales Chacon and Ivonne Pedroso Ibanez},
  doi = {10.82901/nemar.on003195},
  url = {https://doi.org/10.82901/nemar.on003195},
}
§ 06API · Programmatic access

API Reference#

Signature
eegdash.dataset
class
eegdash.dataset.ON003195(cache_dir, query=None, s3_bucket=None, **kwargs)
Bases: EEGDashDataset
Author (year)
Canonical
Importable asON003195
Sourceeegdash/dataset/registry.py · [source ↗]
class eegdash.dataset.ON003195(cache_dir: str, query: dict | None = None, s3_bucket: str | None = None, **kwargs)[source]#

Placebo Neuroepo multisession

Study:

on003195 (NeMAR)

Author (year):

nan

Canonical:

Also importable as: ON003195, nan.

Modality: eeg. Subjects: 10; recordings: 20; 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

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/on003195 NeMAR dataset: https://nemar.org/dataexplorer/detail?dataset_id=on003195 DOI: https://doi.org/10.82901/nemar.on003195

Examples

>>> from eegdash.dataset import ON003195
>>> dataset = ON003195(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 FaceNo per-dataset mirror published yet — browse the EEGDash org listing for sibling datasets. See the datasets loader API.huggingface
Croissant 1.0Machine-readable JSON-LD descriptorON003195.croissant.json (MLCommons schema, ingestible by PyTorch / TensorFlow / JAX).mlcommons
Examples using EEGDashcurated · start here

Swap any load_dataset(...) call for on003195 to reproduce the tutorial on this dataset.

Citation

Maria Luisa Bringas Vega, Lilia Morales Chacon, Ivonne Pedroso Ibanez (2019). Placebo Neuroepo multisession. 10.82901/nemar.on003195

Provenance

¹Contributed to nemar in BIDS format.

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

³Persistent identifier: 10.82901/nemar.on003195.

BIDS
BIDS 1.2.0
Sidecars
events · channels · eeg.json
Provenance
Machine-readable
Mirrors

See Also#