EEGdashNeMARON005284
Iss. 5284 · 26 subjects · 26 recordings · CC0
Dataset Brief · 26 By Biosemi

ON005284: eeg dataset, 26 subjects#

26 By Biosemi

Access recordings and metadata through EEGDash.

Citation: Zhao Xiangyue, Zhou Jingyao, Zhang Libo, Duan Haoqing, Wei Shiyu, Bi Yanzhi, Hu Li (20). 26 By Biosemi. 10.82901/nemar.on005284

Modality: eeg Subjects: 26 Recordings: 26 License: CC0 Source: nemar

Metadata: Complete (100%)

26-participant EEG dataset — 26 By Biosemi.

EEG · 64 ch1024 Hz · mixedBIDS 1.1.1Task · 26ByBiosemi
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 ON005284

dataset = ON005284(cache_dir="./data")
# Get the raw object of the first recording
raw = dataset.datasets[0].raw
print(raw.info)

Filter by subject

dataset = ON005284(cache_dir="./data", subject="01")

Advanced query

dataset = ON005284(
    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{on005284,
  title = {26 By Biosemi},
  author = {Zhao Xiangyue and Zhou Jingyao and Zhang Libo and Duan Haoqing and Wei Shiyu and Bi Yanzhi and Hu Li},
  doi = {10.82901/nemar.on005284},
  url = {https://doi.org/10.82901/nemar.on005284},
}
§ 02Study · The README

About This Dataset#

1.Study introduction:

First, participants underwent a series of laser stimulations of varying intensities. The experimenter determined the energy intensity corresponding to an average score of 7 points among the participants. Subsequently, each participant received a fixed-intensity laser stimulation approximately every 20 seconds, for a total of 16 trials, during which they provided pain ratings ranging from 0 to 10. A rating of 0 indicated no sensation, 4 denoted the onset of pain perception, 6 represented moderate pain, 8 indicated severe pain, and 10 signified intolerable pain.

2.Participant task information(description of the experiment):

DOI

Participants received laser stimulation and used a computer mouse to click on the appropriate position on the screen, corresponding to a scale of 0 to 10. 3.Participant instructions(as exact as possible):

Participants were instructed to concentrate on the laser stimuli, maintain open eyes, and fixate their gaze on a cross displayed on the screen before them. Following the presentation of each laser stimulus, there was a pause of 3�C5 seconds. Subsequently, participants orally rated the intensity of pain within a time window of 3�C5 seconds for each rating. The subsequent trial commenced randomly within 1�C3 seconds after the ratings were provided. 4.References and links:

Lu X, Thompson WF, Zhang L, Hu L. Music Reduces Pain Unpleasantness: Evidence from an EEG Study. J Pain Res. 2019 Dec 13;12:3331-3342. doi: 10.2147/JPR.S212080. PMID: 31853196; PMCID: PMC6916681.

§ 03Cohort · Participants

Cohort#

Dataset Statistics#

Age distribution (n=26, range 18–25 yr, mean 21.1 yr · sex per subject not reported)

152025

Sex composition

26
subjects
Female
18
Male
8
F : M ratio
2.25 : 1
69% female · n = 26 subjects with reported sex.

Channel counts: 64 ch (n=26 recordings)

Sampling frequencies (Hz)

10242048

Total recording duration: 2 h 23 min

§ 04Signal · Electrodes & trace

Signal · Electrodes & live trace#

Fig. 01 Signal & montage 64 ch · EEG · 1024 Hz · mixed · 26 subjects, 26 recordings
Live trace viewer — sub-001 · task-26ByBiosemi

Showing one representative recording out of 26 subjects and 26 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 · 64 sensors — 64 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 — ON005284
§ 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

ON005284

Title

26 By Biosemi

Author (year)

Canonical

Importable as

ON005284

Year

20

Authors

Zhao Xiangyue, Zhou Jingyao, Zhang Libo, Duan Haoqing, Wei Shiyu, Bi Yanzhi, Hu Li

License

CC0

Citation / DOI

10.82901/nemar.on005284

Source links

OpenNeuro | NeMAR | Source URL

Copy-paste BibTeX
@dataset{on005284,
  title = {26 By Biosemi},
  author = {Zhao Xiangyue and Zhou Jingyao and Zhang Libo and Duan Haoqing and Wei Shiyu and Bi Yanzhi and Hu Li},
  doi = {10.82901/nemar.on005284},
  url = {https://doi.org/10.82901/nemar.on005284},
}
§ 06API · Programmatic access

API Reference#

Signature
eegdash.dataset
class
eegdash.dataset.ON005284(cache_dir, query=None, s3_bucket=None, **kwargs)
Bases: EEGDashDataset
Author (year)
Canonical
Importable asON005284
Sourceeegdash/dataset/registry.py · [source ↗]
class eegdash.dataset.ON005284(cache_dir: str, query: dict | None = None, s3_bucket: str | None = None, **kwargs)[source]#

26 By Biosemi

Study:

on005284 (NeMAR)

Author (year):

Canonical:

Also importable as: ON005284.

Modality: eeg; Subject type: Unknown. Subjects: 26; recordings: 26; 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/on005284 NeMAR dataset: https://nemar.org/dataexplorer/detail?dataset_id=on005284 DOI: https://doi.org/10.82901/nemar.on005284

Examples

>>> from eegdash.dataset import ON005284
>>> dataset = ON005284(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 descriptorON005284.croissant.json (MLCommons schema, ingestible by PyTorch / TensorFlow / JAX).mlcommons
Examples using EEGDashcurated · start here

Swap any load_dataset(...) call for on005284 to reproduce the tutorial on this dataset.

Citation

Zhao Xiangyue, Zhou Jingyao, Zhang Libo, Duan Haoqing, Wei Shiyu, … (20). 26 By Biosemi. 10.82901/nemar.on005284

Provenance

¹Contributed to nemar in BIDS format.

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

³Persistent identifier: 10.82901/nemar.on005284.

BIDS
BIDS 1.1.1
Sidecars
events · channels · electrodes · eeg.json
Provenance
Machine-readable
Mirrors

See Also#