Published March 12, 2026
| Version v1
Dataset
Open
Zhou2020 — 7-day motor imagery BCI EEG dataset (repackaged)
Authors/Creators
- 1. Zhejiang University
- 2. Zhejiang Lab
Description
Re-hosted EEG data from Zhou et al. (2021), originally deposited on IEEE DataPort (DOI: 10.21227/f1c7-7x89) under a CC BY 4.0 license. The original multi-subject ZIP archives have been split into per-subject ZIPs with a clean session/run directory structure.
Paper
Q. Zhou, J. Lin, L. Yao, Y. Wang, Y. Han, K. Xu, “Relative Power Correlates With the Decoding Performance of Motor Imagery Both Across Time and Subjects,” Frontiers in Human Neuroscience, 15, 701091, 2021.
DOI: 10.3389/fnhum.2021.701091
Paradigm
| Task | Motor imagery, 4 classes: left hand, right hand, both feet, idle |
| Trials | 40 per run (10 per class), 6 runs per session |
| Timing | 3 s rest → 1 s arrow cue → 5 s MI → rest |
| Events | GDF codes in MarkOnSignal: 769=left, 770=right, 771=feet, 780=idle; 786=cue, 800=trial end |
| Feedback | None (offline) |
Participants
- 20 healthy subjects, mean age 23.2
- Sex: 11 male, 9 female
- All right-handed, BCI-naive
- S-subjects (S01–S12): 41 EEG + 4 EOG channels
- A-subjects (S13–S20, originally A1–A8): 26 EEG + 2 EOG channels
Recording setup
| Parameter | Value |
|---|---|
| System | Neuroscan SynAmps2 |
| Sampling rate | 500 Hz |
| Reference | Vertex (Cz) |
| Ground | AFz |
| Filters | 0.5–100 Hz bandpass, 50 Hz notch |
| Format | Neuroscan NSsignal NPZ |
ZIP structure
S01.zip/
session_1/
run_01.npz (keys: signal, MarkOnSignal, SampleRate, ...)
run_02.npz
...
session_2/
...
session_7/
...
Subject mapping
Original naming unified for MOABB:
S1–S12 → S01–S12
A1–A8 → S13–S20
License
CC BY 4.0 as per the IEEE DataPort deposit.
Files
S01.zip
Files
(17.6 GB)
| Name | Size | |
|---|---|---|
|
md5:34867b4b27a8c91fd6fe010cbf4f9caa
|
1.1 GB | Preview Download |
|
md5:47c316f0c69378f1a98706f15f19a474
|
1.1 GB | Preview Download |
|
md5:7e313b97b6b33cb1823d788d6d1ae264
|
1.2 GB | Preview Download |
|
md5:f5f00cc57235d6ce414b5d732e066cdb
|
1.1 GB | Preview Download |
|
md5:d0333d431e398de9c71413793666d9c7
|
997.6 MB | Preview Download |
|
md5:c4c16b839b64e8085923469cac8de2aa
|
975.3 MB | Preview Download |
|
md5:a4e55473a2c867c48c975476f39b670d
|
1.1 GB | Preview Download |
|
md5:66c9b2a9c5e097901e038aaffeaa7b22
|
1.1 GB | Preview Download |
|
md5:c90a989545a5bdc5167c46cfc1afd234
|
1.0 GB | Preview Download |
|
md5:ab751b523db0b9a19d9a3dff7e54c806
|
1.1 GB | Preview Download |
|
md5:8bee7bd7e49ea5e8c804faf9c5641af9
|
1.1 GB | Preview Download |
|
md5:5af97a8013556e9198256350ab6a018d
|
1.1 GB | Preview Download |
|
md5:ef2e519a94e142b8e5c152bd5a66d849
|
570.4 MB | Preview Download |
|
md5:529cebd554af45c6d2fc11990e0c8413
|
565.5 MB | Preview Download |
|
md5:b47bc7938da8fabc752eb2423efa3b53
|
599.6 MB | Preview Download |
|
md5:e6a703e9798bd1150b87d63a0bf44cb5
|
557.3 MB | Preview Download |
|
md5:8d23b84736b85bc253f543f5994d3923
|
585.4 MB | Preview Download |
|
md5:0d5a4f60513a60a64f1c7c0efa7f9acd
|
589.5 MB | Preview Download |
|
md5:75f1eeb46a4ae4332934edb8c891a3fb
|
591.4 MB | Preview Download |
|
md5:6751e946234790f16673c9066cbd46b0
|
534.3 MB | Preview Download |
Additional details
Related works
- Is derived from
- 10.21227/f1c7-7x89 (DOI)
- Is part of
- https://github.com/NeuroTechX/moabb (URL)
- Is supplement to
- 10.3389/fnhum.2021.701091 (DOI)