EEG Recordings from Visual Imagery Tasks with 22 Participants

High-resolution EEG recordings from 22 healthy adult participants performing visual imagery tasks. Data includes up to two sessions per participant, with recordings from 32 active EEG channels at 1000 Hz. The dataset was published by Jing'ao Gao on figshare in June 2026.

Use Cases

• Classifying imagined semantic categories (geometric figures, animals, objects) based on EEG signal patterns.
• Analyzing temporal dynamics of visual imagery from the structured trial sequence described.
• Developing models for brain-computer interfaces using high-frequency (1000 Hz) EEG data.
• Studying inter-session variability in EEG signals collected on separate days.

Strengths

• Contains data from 22 participants, with demographic details (5 females, age 20-23).
• High temporal resolution EEG recorded at 1000 Hz across 32 active channels.
• Structured experimental design with three semantic categories and up to 400 trials per participant.
• Organized according to the EEG-BIDS convention for interoperability.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data completeness varies; two participants have only one session, and one session had excluded data due to noise.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

figshare

Collection Method

Recorded using a 34-channel EEG cap during controlled visual imagery tasks presented via Psychtoolbox-3.

Freshness

Last updated 2026-06-01 11:04:59; freshness should be verified.