NM000146: eeg dataset, 10 subjects#

Motor Imagery dataset from Weibo et al 2014

Access recordings and metadata through EEGDash.

Citation: Weibo Yi, Shuang Qiu, Kun Wang, Hongzhi Qi, Lixin Zhang, Peng Zhou, Feng He, Dong Ming (2014). Motor Imagery dataset from Weibo et al 2014.

Modality: eeg Subjects: 10 Recordings: 10 License: CC0-1.0 Source: nemar

Metadata: Complete (90%)

Quickstart#

Install

pip install eegdash

Access the data

from eegdash.dataset import NM000146

dataset = NM000146(cache_dir="./data")
# Get the raw object of the first recording
raw = dataset.datasets[0].raw
print(raw.info)

Filter by subject

dataset = NM000146(cache_dir="./data", subject="01")

Advanced query

dataset = NM000146(
    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{nm000146,
  title = {Motor Imagery dataset from Weibo et al 2014},
  author = {Weibo Yi and Shuang Qiu and Kun Wang and Hongzhi Qi and Lixin Zhang and Peng Zhou and Feng He and Dong Ming},
}

About This Dataset#

Motor Imagery dataset from Weibo et al 2014

Motor Imagery dataset from Weibo et al 2014.

Dataset Overview

  • Code: Weibo2014

  • Paradigm: imagery

  • DOI: 10.1371/journal.pone.0114853

View full README

Motor Imagery dataset from Weibo et al 2014

Motor Imagery dataset from Weibo et al 2014.

Dataset Overview

  • Code: Weibo2014

  • Paradigm: imagery

  • DOI: 10.1371/journal.pone.0114853

  • Subjects: 10

  • Sessions per subject: 1

  • Events: left_hand=1, right_hand=2, hands=3, feet=4, left_hand_right_foot=5, right_hand_left_foot=6, rest=7

  • Trial interval: [3, 7] s

  • File format: MAT

  • Data preprocessed: True

Acquisition

  • Sampling rate: 200.0 Hz

  • Number of channels: 60

  • Channel types: eeg=60, eog=2, misc=2

  • Channel names: AF3, AF4, C1, C2, C3, C4, C5, C6, CB1, CB2, CP1, CP2, CP3, CP4, CP5, CP6, CPz, Cz, F1, F2, F3, F4, F5, F6, F7, F8, FC1, FC2, FC3, FC4, FC5, FC6, FCz, FT7, FT8, Fp1, Fp2, Fpz, Fz, HEO, O1, O2, Oz, P1, P2, P3, P4, P5, P6, P7, P8, PO3, PO4, PO5, PO6, PO7, PO8, POz, Pz, T7, T8, TP7, TP8, VEO

  • Montage: standard_1005

  • Hardware: Neuroscan SynAmps2

  • Reference: nose

  • Ground: prefrontal lobe

  • Sensor type: Ag/AgCl

  • Line frequency: 50.0 Hz

  • Online filters: {‘bandpass’: [0.5, 100], ‘notch_hz’: 50}

  • Auxiliary channels: EOG (2 ch, HEO, VEO)

Participants

  • Number of subjects: 10

  • Health status: healthy

  • Age: mean=24.0, min=23.0, max=25.0

  • Gender distribution: female=7, male=3

  • Handedness: right-handed

  • BCI experience: naive

  • Species: human

Experimental Protocol

  • Paradigm: imagery

  • Number of classes: 7

  • Class labels: left_hand, right_hand, hands, feet, left_hand_right_foot, right_hand_left_foot, rest

  • Trial duration: 8.0 s

  • Study design: Simple limb motor imagery (left hand, right hand, feet) and compound limb motor imagery (both hands, left hand combined with right foot, right hand combined with left foot)

  • Feedback type: none

  • Stimulus type: text cues

  • Stimulus modalities: visual

  • Primary modality: visual

  • Synchronicity: synchronous

  • Mode: offline

  • Instructions: Participants were asked to perform kinesthetic motor imagery rather than a visual type of imagery while avoiding any muscle movement

HED Event Annotations

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

left_hand
     ├─ Sensory-event, Experimental-stimulus, Visual-presentation
     └─ Agent-action
        └─ Imagine
           ├─ Move
           └─ Left, Hand

right_hand
     ├─ Sensory-event, Experimental-stimulus, Visual-presentation
     └─ Agent-action
        └─ Imagine
           ├─ Move
           └─ Right, Hand

hands
     ├─ Sensory-event, Experimental-stimulus, Visual-presentation
     └─ Agent-action
        └─ Imagine, Move, Hand

feet
     ├─ Sensory-event, Experimental-stimulus, Visual-presentation
     └─ Agent-action
        └─ Imagine, Move, Foot

left_hand_right_foot
     ├─ Sensory-event, Experimental-stimulus, Visual-presentation
     └─ Agent-action
        ├─ Imagine
        │  ├─ Move
        │  └─ Left, Hand
        └─ Imagine
           ├─ Move
           └─ Right, Foot

right_hand_left_foot
     ├─ Sensory-event, Experimental-stimulus, Visual-presentation
     └─ Agent-action
        ├─ Imagine
        │  ├─ Move
        │  └─ Right, Hand
        └─ Imagine
           ├─ Move
           └─ Left, Foot

rest
├─ Sensory-event
├─ Experimental-stimulus
├─ Visual-presentation
└─ Rest

Paradigm-Specific Parameters

  • Detected paradigm: motor_imagery

  • Imagery tasks: left_hand, right_hand, feet, both_hands, left_hand_right_foot, right_hand_left_foot

  • Cue duration: 1.0 s

  • Imagery duration: 4.0 s

Data Structure

  • Trials: 560

  • Trials context: 8 sections with 60 trials each (10 trials per MI task per section) for 6 MI tasks, plus 1 section with 80 trials for rest state

Preprocessing

  • Data state: preprocessed

  • Preprocessing applied: True

  • Steps: bandpass filtering, downsampling

  • Highpass filter: 0.5 Hz

  • Lowpass filter: 50.0 Hz

  • Bandpass filter: {‘low_cutoff_hz’: 0.5, ‘high_cutoff_hz’: 50.0}

  • Re-reference: nose

  • Downsampled to: 200.0 Hz

Signal Processing

  • Feature extraction: Bandpower, ERD, ERS, ERSP, Time-Frequency, AR, DTF, PLV

  • Frequency bands: theta=[4.0, 5.0] Hz; alpha=[8.0, 13.0] Hz; beta=[13.0, 30.0] Hz; analyzed=[1.0, 40.0] Hz

BCI Application

  • Applications: motor_control

  • Environment: laboratory

Tags

  • Pathology: Healthy

  • Modality: Motor

  • Type: Research

Documentation

  • DOI: 10.1371/journal.pone.0114853

  • License: CC0-1.0

  • Investigators: Weibo Yi, Shuang Qiu, Kun Wang, Hongzhi Qi, Lixin Zhang, Peng Zhou, Feng He, Dong Ming

  • Senior author: Dong Ming

  • Contact: qhz@tju.edu.cn; richardming@tju.edu.cn

  • Institution: Tianjin University

  • Department: Department of Biomedical Engineering

  • Country: CN

  • Repository: Harvard Dataverse Database

  • Data URL: http://dx.doi.org/10.7910/DVN/27306

  • Publication year: 2014

  • Funding: National Natural Science Foundation of China (No. 81222021, 61172008, 81171423, 51377120, 31271062); National Key Technology R&D Program of the Ministry of Science and Technology of China (No. 2012BAI34B02); Program for New Century Excellent Talents in University of the Ministry of Education of China (No. NCET-10-0618); Natural Science Foundation of Tianjin (No. 13JCQNJC13900)

  • Ethics approval: Ethical committee of Tianjin University

  • Keywords: motor imagery, compound limb motor imagery, EEG oscillatory patterns, cognitive process, effective connectivity, ERD, ERS

References

Yi, Weibo, et al. “Evaluation of EEG oscillatory patterns and cognitive process during simple and compound limb motor imagery.” PloS one 9.12 (2014). https://doi.org/10.1371/journal.pone.0114853 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

NM000146

Title

Motor Imagery dataset from Weibo et al 2014

Author (year)

Yi2014

Canonical

Weibo2014

Importable as

NM000146, Yi2014, Weibo2014

Year

2014

Authors

Weibo Yi, Shuang Qiu, Kun Wang, Hongzhi Qi, Lixin Zhang, Peng Zhou, Feng He, Dong Ming

License

CC0-1.0

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: 10

  • Recordings: 10

  • Tasks: 1

Channels & sampling rate
  • Channels: 60

  • Sampling rate (Hz): 200.0

  • Duration (hours): 13.080541666666663

Tags
  • Pathology: Healthy

  • Modality: Visual

  • Type: Motor

Files & format
  • Size on disk: 1.6 GB

  • File count: 10

  • Format: BIDS

License & citation
  • License: CC0-1.0

  • DOI: —

Provenance

API Reference#

Use the NM000146 class to access this dataset programmatically.

class eegdash.dataset.NM000146(cache_dir: str, query: dict | None = None, s3_bucket: str | None = None, **kwargs)[source]#

Bases: EEGDashDataset

Motor Imagery dataset from Weibo et al 2014

Study:

nm000146 (NeMAR)

Author (year):

Yi2014

Canonical:

Weibo2014

Also importable as: NM000146, Yi2014, Weibo2014.

Modality: eeg; Experiment type: Motor; Subject type: Healthy. Subjects: 10; recordings: 10; 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/nm000146 NeMAR dataset: https://nemar.org/dataexplorer/detail?dataset_id=nm000146

Examples

>>> from eegdash.dataset import NM000146
>>> dataset = NM000146(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#