EEGdashOpenNeuroDS006233
Iss. 6233 · 108 subjects · 347 recordings · CC0
Dataset Brief · Picture naming

DS006233: ieeg dataset, 108 subjects#

Picture naming

Citation: Ryuzaburo Kochi, Aya Kanno, Hiroshi Uda, Keisuke Hatano, Hidenori Endo, Michael Cools, Robert Rothermel, Aimee F. Luat, Eishi Asano (2025). Picture naming. 10.18112/openneuro.ds006233.v1.0.0

108-participant iEEG dataset — Picture naming.

iEEG · 128 (245), 138 (19), 136 (19), 140 (8), 112 (6), 110 (6), 156 (5), 150 (5), 134 (4), 148 (4), 130 (4), 164 (4), 96 (3), 118 (3), 84 (3), 144 (3), 152 (3), 64 (2), 58 ch1000 HzBIDS 1.7.0Task · picture5 sessionsSurgeryVisualOther
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 DS006233

dataset = DS006233(cache_dir="./data")
# Get the raw object of the first recording
raw = dataset.datasets[0].raw
print(raw.info)

Filter by subject

dataset = DS006233(cache_dir="./data", subject="01")

Advanced query

dataset = DS006233(
    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{ds006233,
  title = {Picture naming},
  author = {Ryuzaburo Kochi and Aya Kanno and Hiroshi Uda and Keisuke Hatano and Hidenori Endo and Michael Cools and Robert Rothermel and Aimee F. Luat and Eishi Asano},
  doi = {10.18112/openneuro.ds006233.v1.0.0},
  url = {https://doi.org/10.18112/openneuro.ds006233.v1.0.0},
}
§ 02Study · The README

About This Dataset#

This dataset, used in the analysis reported by Kochi et al., (2025), contains intracranial EEG recordings from 108 individuals who performed an picture‑naming task. Electrode coordinates are provided in MNI‑305 space.

Each EDF file is tagged for the auditory naming task with the following event codes:

401 – stimulus onset 501 – response onset Reference:

Ryuzaburo Kochi, Aya Kanno, Hiroshi Uda, Keisuke Hatano, Hidenori Endo, Michael Cools, Robert Rothermel, Aimee F. Luat, Eishi Asano. Naming is Shaped by Early Facilitative and Late Compensatory Neural Interactions: An Intracranial Study of 125 Patients

§ 03Cohort · Participants

Cohort#

Dataset Statistics#

Age distribution by gender (n=108, range 5–49 yr, mean 14.8 yr)

51015202530354045
Female · 52Male · 56

Sex composition

108
subjects
Female
52
Male
56
F : M ratio
0.93 : 1
48% female · n = 108 subjects with reported sex.
HandednessAmbidextrous · 1

Channel counts (ch)

58648496110112118128130134136138140144148150152156164

Sampling frequencies: 1000.0 Hz (n=347 recordings)

§ 04Signal · Electrodes & trace

Signal · Electrodes & live trace#

Fig. 01 Signal & montage 128 (245), 138 (19), 136 (19), 140 (8), 112 (6), 110 (6), 156 (5), 150 (5), 134 (4), 148 (4), 130 (4), 164 (4), 96 (3), 118 (3), 84 (3), 144 (3), 152 (3), 64 (2), 58 ch · iEEG · 1000 Hz · 108 subjects, 347 recordings
Live trace viewer — sub-026 · ses-2 · task-picture

Showing one representative recording out of 108 subjects and 347 recordings in this dataset. Browse the full set on OpenNeuro; drop any other _ieeg.{set,edf,bdf,vhdr} file onto the viewer (or pass ?ieeg=<url>) to inspect it.

Electrode layout — iEEG · 113 sensors — 113 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 — DS006233
§ 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

DS006233

Title

Picture naming

Author (year)

Kochi2025_Picture_naming

Canonical

Importable as

DS006233, Kochi2025_Picture_naming

Year

2025

Authors

Ryuzaburo Kochi, Aya Kanno, Hiroshi Uda, Keisuke Hatano, Hidenori Endo, Michael Cools, Robert Rothermel, Aimee F. Luat, Eishi Asano

License

CC0

Citation / DOI

doi:10.18112/openneuro.ds006233.v1.0.0

Source links

OpenNeuro | NeMAR | Source URL

Copy-paste BibTeX
@dataset{ds006233,
  title = {Picture naming},
  author = {Ryuzaburo Kochi and Aya Kanno and Hiroshi Uda and Keisuke Hatano and Hidenori Endo and Michael Cools and Robert Rothermel and Aimee F. Luat and Eishi Asano},
  doi = {10.18112/openneuro.ds006233.v1.0.0},
  url = {https://doi.org/10.18112/openneuro.ds006233.v1.0.0},
}
§ 06API · Programmatic access

API Reference#

Signature
eegdash.dataset
class
eegdash.dataset.DS006233(cache_dir, query=None, s3_bucket=None, **kwargs)
Bases: EEGDashDataset
Author (year)Kochi2025_Picture_naming
Canonical
Importable asDS006233 · Kochi2025_Picture_naming
Sourceeegdash/dataset/registry.py · [source ↗]
class eegdash.dataset.DS006233(cache_dir: str, query: dict | None = None, s3_bucket: str | None = None, **kwargs)[source]#

Picture naming

Study:

ds006233 (OpenNeuro)

Author (year):

Kochi2025_Picture_naming

Canonical:

Also importable as: DS006233, Kochi2025_Picture_naming.

Modality: ieeg; Experiment type: Other; Subject type: Surgery. Subjects: 108; recordings: 347; 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/ds006233 NeMAR dataset: https://nemar.org/dataexplorer/detail?dataset_id=ds006233 DOI: https://doi.org/10.18112/openneuro.ds006233.v1.0.0

Examples

>>> from eegdash.dataset import DS006233
>>> dataset = DS006233(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 FacePre-bundled mirror at EEGDash/ds006233 · pull with datasets.load_dataset("EEGDash/ds006233").huggingface
Croissant 1.0Machine-readable JSON-LD descriptorDS006233.croissant.json (MLCommons schema, ingestible by PyTorch / TensorFlow / JAX).mlcommons
Examples using EEGDashcurated · start here

Swap any load_dataset(...) call for ds006233 to reproduce the tutorial on this dataset.

Citation

Ryuzaburo Kochi, Aya Kanno, Hiroshi Uda, Keisuke Hatano, Hidenori Endo, … (2025). Picture naming. 10.18112/openneuro.ds006233.v1.0.0

Provenance

¹Contributed to openneuro in BIDS format.

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

³Persistent identifier: 10.18112/openneuro.ds006233.v1.0.0.

BIDS
BIDS 1.7.0
Sidecars
channels · electrodes
Machine-readable

See Also#