EEG-Speech Brain Decoding Dataset

# EEG-Speech Brain Decoding Dataset ## Overview This dataset contains EEG recordings and audio data. ## Sessions Sessions are labeled by recording date in YYYYMMDD format. - Example: `ses-20240401` = recorded on April 1, 2024 Multiple recordings on the same day are distinguished by run numbers: - `run-N`: Nth recording of the day ## Tasks - **speechopen**: Overt speech production task - Participants vocalize visually presented text ## File Format Notes ### EEG Data Raw EEG data is stored: - **Path**: `sub-*/ses-*/eeg/*_eeg.edf` - **Note**: EDF format is not officially part of BIDS-EEG specification - Files are excluded in `.bidsignore` but documented here for reference - Future releases may include EDF conversions for full BIDS compliance ### Behavioral Data (Audio) Vocal recordings are stored in `beh/` directories: - **Path**: `sub-*/ses-*/beh/*_recording-vocal_beh.wav` - **Note**: Not officially part of BIDS-EEG spec, but included for analysis convenience - Excluded in `.bidsignore` ## Directory Structure ``` dataset_root/ ├── README (this file) ├── CHANGES (version history) ├── dataset_description.json (dataset metadata) ├── participants.tsv (participant information) ├── participants.json (participant column descriptions) ├── task-speechopen_eeg.json (task-level EEG metadata) ├── task-speechopen_events.json (events column descriptions) ├── .bidsignore (files to ignore in validation) │ ├── code/ (analysis and preprocessing code) │ ├── preprocessing/ (EEG and audio preprocessing) │ ├── training/ (model training scripts) │ ├── evaluation/ (evaluation metrics) │ └── bids/ (BIDS conversion scripts) │ ├── sub-01/ (participant data) │ └── ses-YYYYMMDD/ (session by date) │ ├── eeg/ (EEG recordings) │ └── beh/ (behavioral/audio data) │ └── derivatives/ (processed data) └── pipeline-standard/ (standard preprocessing) ```