NM000239: eeg dataset, 16 subjects#

P-ary m-sequence-based c-VEP dataset from Martínez-Cagigal et al. (2023)

Access recordings and metadata through EEGDash.

Citation: Víctor Martínez-Cagigal, Eduardo Santamaría-Vázquez, Sergio Pérez-Velasco, Diego Marcos-Martínez, Selene Moreno-Calderón, Roberto Hornero (2023). P-ary m-sequence-based c-VEP dataset from Martínez-Cagigal et al. (2023).

Modality: eeg Subjects: 16 Recordings: 640 License: CC-BY-NC-SA-4.0 Source: nemar

Metadata: Complete (90%)

Quickstart#

Get Started

Install

pip install eegdash

Access the data

from eegdash.dataset import NM000239

dataset = NM000239(cache_dir="./data")
# Get the raw object of the first recording
raw = dataset.datasets[0].raw
print(raw.info)

Query & Filter

Filter by subject

dataset = NM000239(cache_dir="./data", subject="01")

Advanced query

dataset = NM000239(
    cache_dir="./data",
    query={"subject": {"$in": ["01", "02"]}},
)

Iterate recordings

for rec in dataset:
    print(rec.subject, rec.raw.info['sfreq'])

Cite This Dataset

If you use this dataset in your research, please cite the original authors.

BibTeX

@dataset{nm000239,
  title = {P-ary m-sequence-based c-VEP dataset from Martínez-Cagigal et al. (2023)},
  author = {Víctor Martínez-Cagigal and Eduardo Santamaría-Vázquez and Sergio Pérez-Velasco and Diego Marcos-Martínez and Selene Moreno-Calderón and Roberto Hornero},
}

About This Dataset#

P-ary m-sequence-based c-VEP dataset from Martínez-Cagigal et al. (2023)

P-ary m-sequence-based c-VEP dataset from Martínez-Cagigal et al. (2023)

Dataset Overview

Code: MartinezCagigal2023Parycvep
Paradigm: cvep
DOI: https://doi.org/10.71569/025s-eq10

Dataset Information#

Dataset ID	`NM000239`
Title	P-ary m-sequence-based c-VEP dataset from Martínez-Cagigal et al. (2023)
Author (year)	`MartinezCagigal2023`
Canonical	—
Importable as	`NM000239`, `MartinezCagigal2023`
Year	2023
Authors	Víctor Martínez-Cagigal, Eduardo Santamaría-Vázquez, Sergio Pérez-Velasco, Diego Marcos-Martínez, Selene Moreno-Calderón, Roberto Hornero
License	CC-BY-NC-SA-4.0
Citation / DOI	Unknown
Source links	OpenNeuro \| NeMAR \| Source URL

Found an issue with this dataset?

If you encounter any problems with this dataset (missing files, incorrect metadata, loading errors, etc.), please let us know!

Report an Issue on GitHub

Technical Details#

Subjects & recordings

Subjects: 16
Recordings: 640
Tasks: 1

Channels & sampling rate

Channels: 16
Sampling rate (Hz): 256.0 (608), 600.0 (32)
Duration (hours): 15.095158796296298

Electrode Layout#

Electrode layout — EEG · 16 sensors — 16 channels

Dataset Statistics#

Channel counts: 16 ch (n=640 recordings)

Sampling frequencies (Hz)

256600

Total recording duration: 15 h 5 min

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

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.

Files: —

Size: —

Subjects: —

Click to load file structure…

API Reference#

Use the NM000239 class to access this dataset programmatically.

class eegdash.dataset.NM000239(cache_dir: str, query: dict | None = None, s3_bucket: str | None = None, **kwargs)[source]#

Bases: EEGDashDataset

P-ary m-sequence-based c-VEP dataset from Martínez-Cagigal et al. (2023)

Study:: nm000239 (NeMAR)
Author (year):: MartinezCagigal2023
Canonical:: —

Also importable as: NM000239, MartinezCagigal2023.

Modality: eeg; Experiment type: Perception; Subject type: Healthy. Subjects: 16; recordings: 640; 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/nm000239 NeMAR dataset: https://nemar.org/dataexplorer/detail?dataset_id=nm000239

Examples

>>> from eegdash.dataset import NM000239
>>> dataset = NM000239(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)