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#

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)

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'])

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

View full README

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

  • Subjects: 16

  • Sessions per subject: 5

  • Events: 0.0=100, 1.0=101, 2.0=102, 3.0=103, 4.0=104, 5.0=105, 6.0=106, 7.0=107, 8.0=108, 9.0=109, 10.0=110

  • Trial interval: (0, 1) s

  • Runs per session: 8

Acquisition

  • Sampling rate: 256.0 Hz

  • Number of channels: 16

  • Channel types: eeg=16

  • Montage: standard_1005

  • Line frequency: 50.0 Hz

Participants

  • Number of subjects: 16

  • Health status: healthy

Experimental Protocol

  • Paradigm: cvep

  • Number of classes: 11

  • Class labels: 0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0

HED Event Annotations

Schema: HED 8.4.0 | Browse: https://www.hedtags.org/hed-schema-browser

0.0
     ├─ Sensory-event
     ├─ Experimental-stimulus
     ├─ Visual-presentation
     └─ Label/intensity_0_0

1.0
     ├─ Sensory-event
     ├─ Experimental-stimulus
     ├─ Visual-presentation
     └─ Label/intensity_1_0

2.0
     ├─ Sensory-event
     ├─ Experimental-stimulus
     ├─ Visual-presentation
     └─ Label/intensity_2_0

3.0
     ├─ Sensory-event
     ├─ Experimental-stimulus
     ├─ Visual-presentation
     └─ Label/intensity_3_0

4.0
     ├─ Sensory-event
     ├─ Experimental-stimulus
     ├─ Visual-presentation
     └─ Label/intensity_4_0

5.0
     ├─ Sensory-event
     ├─ Experimental-stimulus
     ├─ Visual-presentation
     └─ Label/intensity_5_0

6.0
     ├─ Sensory-event
     ├─ Experimental-stimulus
     ├─ Visual-presentation
     └─ Label/intensity_6_0

7.0
     ├─ Sensory-event
     ├─ Experimental-stimulus
     ├─ Visual-presentation
     └─ Label/intensity_7_0

8.0
     ├─ Sensory-event
     ├─ Experimental-stimulus
     ├─ Visual-presentation
     └─ Label/intensity_8_0

9.0
     ├─ Sensory-event
     ├─ Experimental-stimulus
     ├─ Visual-presentation
     └─ Label/intensity_9_0

10.0
├─ Sensory-event
├─ Experimental-stimulus
├─ Visual-presentation
└─ Label/intensity_10_0

Documentation

  • DOI: 10.71569/025s-eq10

  • Associated paper DOI: 10.1016/j.eswa.2023.120815

  • License: CC-BY-NC-SA-4.0

  • Investigators: Víctor Martínez-Cagigal, Eduardo Santamaría-Vázquez, Sergio Pérez-Velasco, Diego Marcos-Martínez, Selene Moreno-Calderón, Roberto Hornero

  • Senior author: Roberto Hornero

  • Contact: victor.martinez@gib.tel.uva.es

  • Institution: University of Valladolid

  • Department: Biomedical Engineering Group, ETSIT

  • Address: Paseo de Belén, 15, 47011, Valladolid, Spain

  • Country: ES

  • Repository: U Valladoid

  • Data URL: https://doi.org/10.71569/025s-eq10

  • Publication year: 2023

  • Funding: Ministerio de Ciencia e Innovación/Agencia Estatal de Investigación and ERDF (TED2021-129915B-I00, RTC2019-007350-1, PID2020-115468RB-I00); CIBER-BBN through Instituto de Salud Carlos III

  • Ethics approval: Approved by the local ethics committee; all participants provided informed consent

  • Acknowledgements: This study was partially funded by Ministerio de Ciencia e Innovación/Agencia Estatal de Investigación and ERDF, and CIBER-BBN through Instituto de Salud Carlos III.

  • How to acknowledge: Please cite: Martínez-Cagigal et al. (2023). Non-binary m-sequences for more comfortable brain-computer interfaces based on c-VEPs. Expert Systems With Applications, 232, 120815. https://doi.org/10.1016/j.eswa.2023.120815

References

Martínez-Cagigal, V., Santamaría-Vázquez, E., Pérez-Velasco, S., Marcos-Martínez, D., Moreno-Calderón, S., & Hornero, R. (2023). Non-binary m-sequences for more comfortable brain-computer interfaces based on c-VEPs. Expert Systems with Applications, 232, 120815. https://doi.org/10.1016/j.eswa.2023.120815 Martínez-Cagigal, V., Thielen, J., Santamaría-Vázquez, E., Pérez-Velasco, S., Desain, P., & Hornero, R. (2021). Brain-computer interfaces based on code-modulated visual evoked potentials (c-VEP): A literature review. Journal of Neural Engineering, 18(6), 061002. https://doi.org/10.1088/1741-2552/ac38cf Martínez-Cagigal, V. (2025). Dataset: Non-binary m-sequences for more comfortable brain-computer interfaces based on c-VEPs. https://doi.org/10.35376/10324/70945 Santamaría-Vázquez, E., Martínez-Cagigal, V., Marcos-Martínez, D., Rodríguez-González, V., Pérez-Velasco, S., Moreno-Calderón, S., & Hornero, R. (2023). MEDUSA©: A novel Python-based software ecosystem to accelerate brain-computer interface and cognitive neuroscience research. Computer Methods and Programs in Biomedicine, 230, 107357. https://doi.org/10.1016/j.cmpb.2023.107357 Notes Although the dataset was recorded in a single session, each condition is stored as a separate session to match the MOABB structure. Within each session, eight runs are available (six for training, two for testing). .. versionadded:: 1.2.0 Appelhoff, S., Sanderson, M., Brooks, T., Vliet, M., Quentin, R., Holdgraf, C., Chaumon, M., Mikulan, E., Tavabi, K., Hochenberger, 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 Pernet, C. R., Appelhoff, S., Gorgolewski, K. J., Flandin, G., Phillips, C., Delorme, A., Oostenveld, R. (2019). EEG-BIDS, an extension to the brain imaging data structure for electroencephalography. Scientific Data, 6, 103. https://doi.org/10.1038/s41597-019-0104-8 Generated by MOABB 1.5.0 (Mother of All BCI Benchmarks) https://github.com/NeuroTechX/moabb

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

Tags
  • Pathology: Healthy

  • Modality: Visual

  • Type: Perception

Files & format
  • Size on disk: 783.0 MB

  • File count: 640

  • Format: BIDS

License & citation
  • License: CC-BY-NC-SA-4.0

  • DOI: —

Provenance

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, overwrite=False)[source]#

Save the dataset to disk.

Parameters:
  • path (str or Path) – Destination file path.

  • overwrite (bool, default False) – If True, overwrite existing file.

Return type:

None

See Also#