40-target SSVEP speller, 14.0 to 21.8 Hz

Kim beta-range SSVEP · 40 targets, 14.0–21.8 Hz (Figshare 28806815): EEG decoding results

Kim beta-range SSVEP (Figshare 28806815) is the release of a 40-target SSVEP speller study with its stimuli in the beta range, described by Heegyu Kim, Kyungho Won, Minkyu Ahn and Sung Chan Jun in Scientific Data (2025) and deposited by Heegyu Kim under CC BY 4.0. Besides the task recordings, the record holds rest and questionnaire files; only the 40 task files are used here.

Also known as Kim2025BetaRange · Figshare 28806815 · doi:10.1038/s41597-025-06032-2

Description sources doi.org · www.nature.com

Where it appears

The training-free CCA baseline, with its intake, the checks run before any score, its caveats and its hold, is the worked case on the data-quality page: What does training-free CCA give on 40 frequencies in the beta range? →

Published results

Each figure comes from the reviewed download linked in its group. One row is above another only where their 95% intervals do not overlap.

Data quality · which of 40 targets, with no training

Source page: Checked end to end · Chance level 2.50% · dataset-checks-update.json

MethodConditionMetricValuePeople
CCA (no training)40 targets, 14.0–21.8 Hz · a nominal 2-second window from the stored onset, 11 channelsAccuracy53.40%45.89%–61.01%40

Source and licence

Kim beta-range SSVEP · 40 targets, 14.0–21.8 Hz (Figshare 28806815)

Credit Heegyu Kim · SSVEP 40class dataset, figshare, doi:10.6084/m9.figshare.28806815.v3, CC BY 4.0. Paper: Heegyu Kim, Kyungho Won, Minkyu Ahn and Sung Chan Jun, A 40-Class SSVEP Speller Dataset: Beta Range Stimulation for Low-Fatigue BCI Applications, Scientific Data 12:1751 (2025), doi:10.1038/s41597-025-06032-2. Modifications: the 40 task files only; the mean of M1 and M2 subtracted, 11 channels, a 2-second window and a band-pass filter inside it; no data redistributed. Derived analysis by BCI Report; not endorsed by the authors.

CC BY 4.0 ↗ · Dataset record ↗

BCI Report does not redistribute any recording. These are aggregate measurements computed by BCI Report under the licence above; the data remain their creators’.

Ethics and consent, as the source states them

Ethics approval: “The Institutional Review Board at Gwangju Institute of Science and Technology (GIST) approved this experiment (20211201-HR-64-02-04)”

Informed consent: “all subjects were informed of all experimental procedures and signed consent forms”

The data descriptor also states: “All research data has been consented to by participants, with explicit agreement for public sharing.”

The confidentiality clause of the consent forms excludes questionnaire-related personal data; the research acquired the 40 task files only and excluded the questionnaire and rest files.

The paper’s Data availability links version 2; the research used version 3 (the latest), which adds a questionnaire. Both versions carry CC BY 4.0 in the licence field.

Data descriptor, with its ethics statement ↗

Row in the open register →

All datasets → · All methods →

Cite this page

BCI Report (2026). Kim beta-range SSVEP · 40 targets, 14.0–21.8 Hz (Figshare 28806815): EEG decoding results. https://bci.report/datasets/kim2025-beta-range/

Figures from release dataset-checks-update-20261028 (2026-10-28). Cite the upstream dataset as well: its credit is on this page.

Every release is archived on Zenodo: doi:10.5281/zenodo.23123296. BibTeX for the site and its releases → · CITATION.cff ↗