{"dataset":{"id":"61243","dataset_id":"on007602","name":"EEG-Speech Brain Decoding Dataset","description":"This dataset comprises EEG recordings paired with vocal audio data collected during an overt speech production task, in which participants vocalized visually presented text. Sessions are organized by recording date, with multiple runs per day, supporting research on brain-to-speech decoding and neural correlates of speech production. The dataset is intended to facilitate development and evaluation of EEG-based speech brain-computer interface models.","owner_user_id":15,"status":"active","github_repo":"nemarDatasets/on007602","concept_doi":"10.82901/nemar.on007602","latest_version_doi":"10.82901/nemar.on007602.v1.0.0","created_at":"2026-06-30 14:01:36","updated_at":"2026-08-18 23:43:25","zenodo_concept_id":null,"is_sandbox":0,"visibility":"public","ezid_status":"public","enrichment_json":"{\n  \"version\": \"2.0\",\n  \"pipeline_stage\": \"validated\",\n  \"title\": \"EEG-Speech Brain Decoding Dataset\",\n  \"description\": \"This dataset comprises EEG recordings paired with vocal audio data collected during an overt speech production task, in which participants vocalized visually presented text. Sessions are organized by recording date, with multiple runs per day, supporting research on brain-to-speech decoding and neural correlates of speech production. The dataset is intended to facilitate development and evaluation of EEG-based speech brain-computer interface models.\",\n  \"methods_description\": \"EEG data were recorded during an overt speech production task (speechopen) in which participants vocalized visually presented text, with simultaneous audio recordings of vocalizations. Raw EEG data are stored in EDF format and vocal recordings in WAV format, organized by session (recording date) and run.\",\n  \"license\": \"CC0\",\n  \"dataset_type\": \"raw\",\n  \"authors\": {\n    \"Motoshige Sato\": {},\n    \"Masakazu Inoue\": {\n      \"orcid\": \"0009-0009-2888-936X\"\n    },\n    \"Kenichi Tomeoka\": {},\n    \"Ilya Horiguchi\": {},\n    \"Eri Hatakeyama\": {\n      \"orcid\": \"0009-0001-8285-9091\"\n    },\n    \"Yuya Kita\": {},\n    \"Atsushi Yamamoto\": {},\n    \"Ippei Fujisawa\": {},\n    \"Shuntaro Sasai\": {\n      \"orcid\": \"0000-0002-9941-6510\"\n    }\n  },\n  \"keywords\": [\n    {\n      \"term\": \"Electroencephalography\",\n      \"subject_scheme\": \"MeSH\",\n      \"value_uri\": \"http://id.nlm.nih.gov/mesh/D004569\"\n    },\n    {\n      \"term\": \"speech decoding\"\n    },\n    {\n      \"term\": \"brain-computer interface\"\n    },\n    {\n      \"term\": \"overt speech production\"\n    },\n    {\n      \"term\": \"EEG\"\n    },\n    {\n      \"term\": \"audio recordings\"\n    }\n  ],\n  \"related_identifiers\": [\n    {\n      \"identifier\": \"https://github.com/nemarDatasets/on007602\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"https://nemar.org/dataset/on007602\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.1088/1741-2552/ae54d0\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.18112/openneuro.ds007602.v1.0.1\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDerivedFrom\"\n    }\n  ],\n  \"funding_references\": [\n    {\n      \"funder_name\": \"JST\",\n      \"award_number\": \"JPMJMS2012\",\n      \"award_title\": \"Moonshot R&D\"\n    }\n  ],\n  \"resource_type_general\": \"Dataset\",\n  \"resource_type_specific\": \"EEG Dataset\",\n  \"modalities\": [\n    \"eeg\"\n  ],\n  \"sizes\": [\n    \"53.3 GB (114 files)\"\n  ],\n  \"formats\": [\n    \".edf\",\n    \".json\",\n    \".md\",\n    \".tsv\",\n    \".yml\"\n  ],\n  \"source_hash\": \"ba064eec9cf9f2ddd057cc1b8f6fb297518aad6e3ef958ab1d33bf170785427a\"\n}","last_activity_at":"2026-06-30 14:01:36","source":"openneuro","source_id":"ds007602","subject_count":3,"modalities":"eeg","age_min":null,"age_max":null,"file_size":53309495417,"total_files":476,"tasks":"speechopen","metadata_columns_error":null,"staleness_warn_stage":null,"staleness_admin_notified_at":null,"authors":"Motoshige Sato, Masakazu Inoue, Kenichi Tomeoka, Ilya Horiguchi, Eri Hatakeyama, Yuya Kita, Atsushi Yamamoto, Ippei Fujisawa, Shuntaro Sasai","license":"CC0","readme":"[![DOI](https://img.shields.io/badge/DOI-10.82901%2Fnemar.on007602-blue)](https://doi.org/10.82901/nemar.on007602)\n\n# EEG-Speech Brain Decoding Dataset\n\n## Overview\nThis dataset contains EEG recordings and audio data.\n\n## Sessions\nSessions are labeled by recording date in YYYYMMDD format.\n- Example: `ses-20240401` = recorded on April 1, 2024\n\nMultiple recordings on the same day are distinguished by run numbers:\n- `run-N`: Nth recording of the day\n\n## Tasks\n- **speechopen**: Overt speech production task\n  - Participants vocalize visually presented text\n\n## File Format Notes\n\n### EEG Data\nRaw EEG data is stored:\n- **Path**: `sub-*/ses-*/eeg/*_eeg.edf`\n- **Note**: EDF format is not officially part of BIDS-EEG specification\n- Files are excluded in `.bidsignore` but documented here for reference\n- Future releases may include EDF conversions for full BIDS compliance\n\n### Behavioral Data (Audio)\nVocal recordings are stored in `beh/` directories:\n- **Path**: `sub-*/ses-*/beh/*_recording-vocal_beh.wav`\n- **Note**: Not officially part of BIDS-EEG spec, but included for analysis convenience\n- Excluded in `.bidsignore`\n\n## Directory Structure\n```\ndataset_root/\n├── README                          (this file)\n├── CHANGES                         (version history)\n├── dataset_description.json        (dataset metadata)\n├── participants.tsv                (participant information)\n├── participants.json               (participant column descriptions)\n├── task-speechopen_eeg.json        (task-level EEG metadata)\n├── task-speechopen_events.json     (events column descriptions)\n├── .bidsignore                     (files to ignore in validation)\n│\n├── code/                           (analysis and preprocessing code)\n│   ├── preprocessing/              (EEG and audio preprocessing)\n│   ├── training/                   (model training scripts)\n│   ├── evaluation/                 (evaluation metrics)\n│   └── bids/                       (BIDS conversion scripts)\n│\n├── sub-01/                         (participant data)\n│   └── ses-YYYYMMDD/              (session by date)\n│       ├── eeg/                    (EEG recordings)\n│       └── beh/                    (behavioral/audio data)\n│\n└── derivatives/                    (processed data)\n    └── pipeline-standard/          (standard preprocessing)\n```","bids_version":"1.9.0","sessions_count":15,"publish_date":null,"embedding_dirty":0,"license_tier":"public","zarr_status":"ready","zarr_converted_at":"2026-08-23 03:48:07","zarr_store_count":113,"zarr_index_etag":"50dc6ba239e4468b1390edcf80994ed0","zarr_source_commit":"66b2f8dd32188904cbe3cbb957f08a6e8da1ef27","archive_status":"ready","archive_size":28498223134,"archive_retry_count":0,"records_status":"ready","archive_skip_reason":null,"zarr_errors":0,"zarr_failure_count":0,"zarr_deterministic":0,"zarr_failed_at":null,"num_dataset_citations":0,"num_datapaper_citations":2,"n_channels":128,"electrode_system":"other","has_hed":0,"hed_version":null,"is_exemplar":0,"bytes_present":53306605500,"data_complete":1,"withdrawn_at":null,"withdrawn_reason":null,"archive_complete":null,"archive_absent_files":null,"archive_declared_files":null,"zarr_pool_breaks":null,"total_recording_duration":159071,"recording_duration_min":167,"recording_duration_max":5180,"recording_count":113,"recordings_unavailable":0,"recordings_measured":113,"channel_count_min":139,"channel_count_max":140,"sampling_frequency":1200,"power_line_frequency":50,"eeg_reference":"FCz","placement_scheme":"Custom montage based on 10-20 system","sweep_stamps":"{\"enrichment_updated_at\":\"2026-08-18 23:43:14\",\"metadata_updated_at\":\"2026-08-18 23:43:24\",\"archive_checked_at\":\"2026-06-30 14:34:29\",\"zarr_checked_at\":null,\"records_checked_at\":\"2026-06-30 14:26:15\",\"citations_updated_at\":\"2026-09-08 03:00:52\",\"channel_montage_checked_at\":null,\"hed_checked_at\":null,\"data_checked_at\":\"2026-09-03 03:01:48\",\"availability_report_at\":\"2026-07-23 01:33:06\",\"recording_stats_at\":\"2026-09-02 11:34:04\",\"signal_defaults_at\":\"2026-09-02 12:56:14\"}","participants":3,"num_citations":2,"latest_version":"v1.0.0","zarr_verify_status":null,"zarr_verified_at":null,"owner_username":"nemarAdmin","owner_github":"nemarAdmin","file_size_formatted":"49.65 GB","zarr_data_failures":null,"zarr_index_url":"https://zarr.nemar.org/on007602/zarr/index.json","attestation_deposit_type":null,"attestation_key_status":null,"attestation_deidentified":null,"attestation_no_duplicate":null,"attestation_upstream_source":null,"attestation_accepted_at":null}}