EEGdashOpenNeuroDS004977
Iss. 4977 · 4 subjects · 6 recordings · CC0
Dataset Brief · CARLA

DS004977: ieeg dataset, 4 subjects#

CARLA: Adjusted common average referencing for cortico-cortical evoked potential data

Citation: Harvey Huang, Gabriela Ojeda Valencia, Nicholas M Gregg, Gamaleldin M Osman, Morgan N Montoya, Gregory A Worrell, Kai J Miller, Dora Hermes (2024). CARLA: Adjusted common average referencing for cortico-cortical evoked potential data. 10.18112/openneuro.ds004977.v1.2.0

4-participant iEEG dataset — CARLA: Adjusted common average referencing for cortico-cortical evoked potential data.

iEEG · 273 (4), 232, 152 ch4800 HzBIDS v 1.14.0Task · ccepEpilepsyOtherOther
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 DS004977

dataset = DS004977(cache_dir="./data")
# Get the raw object of the first recording
raw = dataset.datasets[0].raw
print(raw.info)

Filter by subject

dataset = DS004977(cache_dir="./data", subject="01")

Advanced query

dataset = DS004977(
    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{ds004977,
  title = {CARLA: Adjusted common average referencing for cortico-cortical evoked potential data},
  author = {Harvey Huang and Gabriela Ojeda Valencia and Nicholas M Gregg and Gamaleldin M Osman and Morgan N Montoya and Gregory A Worrell and Kai J Miller and Dora Hermes},
  doi = {10.18112/openneuro.ds004977.v1.2.0},
  url = {https://doi.org/10.18112/openneuro.ds004977.v1.2.0},
}
§ 02Study · The README

About This Dataset#

This dataset contains intracranial EEG recordings from four patients during single pulse electrical stimulation as described in:

* H Huang, G Ojeda Valencia, NM Gregg, GM Osman, MN Montoya, GA Worrell, KJ Miller, and D Hermes. (2024). CARLA: Adjusted common average referencing for cortico-cortical evoked potential data. Journal of Neuroscience Methods, 110153. DOI: https://doi.org/10.1016/j.jneumeth.2024.110153.

Currently, this dataset contains the raw data needed to generate all results EXCEPT for those pertaining to figures 7 and 8 (unavailable data samples are censored with 0). The complete data are currently being used to answer other scientific questions, and will be released in time with other manuscripts.

CARLA: Adjusted common average referencing for cortico-cortical evoked potential data

Please cite this work when using the data. These data were recorded at the Mayo Clinic in Rochester, MN, as part of the NIH Brain Initiative supported project R01 MH122258 “CRCNS: Processing speed in the human connectome across the lifespan”. Research reported in this publication was supported by the National Institute Of Mental Health of the National Institutes of Health under Award Number R01MH122258, by the National Institute of General Medical Sciences of the National Institutes of Health under Award Number T32GM145408, and by the American Epilepsy Society under award number 937450. The project was also supported by the Mayo Clinic DERIVE Office and the Mayo Clinic Center for Biomedical Discovery. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. The data were collected by Harvey Huang, Dora Hermes, Nicholas M. Gregg, Gamaleldin M. Osman, and Cindy Nelson. The BIDS formatting was performed by Harvey Huang, Dora Hermes, Gabriela Ojeda Valencia, and Morgan Montoya. The iEEG data collection was facilitated by Gregory A. Worrell and Kai J. Miller. Data can be analyzed using the Matlab code at: * hharveygit/CARLA_JNM

Format

Data are formatted according to BIDS version 1.14.0

Single pulse stimulation

The patient were resting in the hospital bed, while single pulse stimulation was performed with a frequency of ~0.2 Hz. The stimulation had a duration of 200 microseconds, was biphasic and had an amplitude of 6mA.

Contact

Please contact Harvey Huang (huang.harvey@mayo.edu) or Dora Hermes (hermes.dora@mayo.edu) for questions.

§ 03Cohort · Participants

Cohort#

Dataset Statistics#

Age distribution (n=4, range 16–19 yr, mean 18.0 yr · sex per subject not reported)

15

Sex composition

4
subjects
Female
2
Male
2
F : M ratio
1.00 : 1
50% female · n = 4 subjects with reported sex.

Channel counts (ch)

152232273

Sampling frequencies: 4800.0 Hz (n=6 recordings)

Total recording duration: 52 min

§ 04Signal · Electrodes & trace

Signal · Electrodes & live trace#

Fig. 01 Signal & montage 273 (4), 232, 152 ch · iEEG · 4800 Hz · 4 subjects, 6 recordings
Electrode layout — iEEG · 228 sensors — 228 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 — DS004977
§ 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

DS004977

Title

CARLA: Adjusted common average referencing for cortico-cortical evoked potential data

Author (year)

Huang2024

Canonical

Importable as

DS004977, Huang2024

Year

2024

Authors

Harvey Huang, Gabriela Ojeda Valencia, Nicholas M Gregg, Gamaleldin M Osman, Morgan N Montoya, Gregory A Worrell, Kai J Miller, Dora Hermes

License

CC0

Citation / DOI

doi:10.18112/openneuro.ds004977.v1.2.0

Source links

OpenNeuro | NeMAR | Source URL

Copy-paste BibTeX
@dataset{ds004977,
  title = {CARLA: Adjusted common average referencing for cortico-cortical evoked potential data},
  author = {Harvey Huang and Gabriela Ojeda Valencia and Nicholas M Gregg and Gamaleldin M Osman and Morgan N Montoya and Gregory A Worrell and Kai J Miller and Dora Hermes},
  doi = {10.18112/openneuro.ds004977.v1.2.0},
  url = {https://doi.org/10.18112/openneuro.ds004977.v1.2.0},
}
§ 06API · Programmatic access

API Reference#

Signature
eegdash.dataset
class
eegdash.dataset.DS004977(cache_dir, query=None, s3_bucket=None, **kwargs)
Bases: EEGDashDataset
Author (year)Huang2024
Canonical
Importable asDS004977 · Huang2024
Sourceeegdash/dataset/registry.py · [source ↗]
class eegdash.dataset.DS004977(cache_dir: str, query: dict | None = None, s3_bucket: str | None = None, **kwargs)[source]#

CARLA: Adjusted common average referencing for cortico-cortical evoked potential data

Study:

ds004977 (OpenNeuro)

Author (year):

Huang2024

Canonical:

Also importable as: DS004977, Huang2024.

Modality: ieeg; Experiment type: Other; Subject type: Epilepsy. Subjects: 4; recordings: 6; 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/ds004977 NeMAR dataset: https://nemar.org/dataexplorer/detail?dataset_id=ds004977 DOI: https://doi.org/10.18112/openneuro.ds004977.v1.2.0 NEMAR citation count: 2

Examples

>>> from eegdash.dataset import DS004977
>>> dataset = DS004977(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/ds004977 · pull with datasets.load_dataset("EEGDash/ds004977").huggingface
Croissant 1.0Machine-readable JSON-LD descriptorDS004977.croissant.json (MLCommons schema, ingestible by PyTorch / TensorFlow / JAX).mlcommons
Examples using EEGDashcurated · start here

Swap any load_dataset(...) call for ds004977 to reproduce the tutorial on this dataset.

Citation

Harvey Huang, Gabriela Ojeda Valencia, Nicholas M Gregg, Gamaleldin M Osman, Morgan N Montoya, … (2024). CARLA: Adjusted common average referencing for cortico-cortical evoked potential data. 10.18112/openneuro.ds004977.v1.2.0

Provenance

¹Contributed to openneuro in BIDS format.

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

³Persistent identifier: 10.18112/openneuro.ds004977.v1.2.0.

BIDS
BIDS v 1.14.0
Sidecars
not yet probed
Machine-readable

See Also#