{"dataset":{"id":"56837","dataset_id":"on004448","name":"The BMI-HDEEG dataset 4","description":"A high-density scalp electroencephalogram (HD-EEG) dataset acquired during sensorimotor rhythm-based brain-computer interface (BCI) tasks. This dataset comprises recordings from multiple subjects performing motor imagery and related sensorimotor tasks, designed to support the development and validation of BCI systems. The HD-EEG recordings provide detailed spatial resolution of cortical activity relevant to motor control and brain-computer interfacing research.","owner_user_id":15,"status":"active","github_repo":"nemarDatasets/on004448","concept_doi":"10.82901/nemar.on004448","latest_version_doi":"10.82901/nemar.on004448.v1.0.0","created_at":"2026-06-24 09:01:43","updated_at":"2026-07-10 22:31:36","zenodo_concept_id":null,"is_sandbox":0,"visibility":"public","ezid_status":"public","enrichment_json":"{\n  \"version\": \"2.0\",\n  \"pipeline_stage\": \"validated\",\n  \"title\": \"The BMI-HDEEG dataset 4\",\n  \"description\": \"A high-density scalp electroencephalogram (HD-EEG) dataset acquired during sensorimotor rhythm-based brain-computer interface (BCI) tasks. This dataset comprises recordings from multiple subjects performing motor imagery and related sensorimotor tasks, designed to support the development and validation of BCI systems. The HD-EEG recordings provide detailed spatial resolution of cortical activity relevant to motor control and brain-computer interfacing research.\",\n  \"license\": \"CC0\",\n  \"dataset_type\": \"raw\",\n  \"authors\": {\n    \"Seitaro Iwama\": {\n      \"orcid\": \"0000-0002-3485-7438\"\n    },\n    \"Masumi Morishige\": {},\n    \"Yoshikazu Takahashi\": {},\n    \"Ryotaro Hirose\": {},\n    \"Midori Kodama\": {},\n    \"Junichi Ushiba\": {}\n  },\n  \"keywords\": [\n    {\n      \"term\": \"EEG\"\n    },\n    {\n      \"term\": \"Brain-Computer Interfaces\",\n      \"subject_scheme\": \"MeSH\",\n      \"value_uri\": \"http://id.nlm.nih.gov/mesh/D062207\"\n    },\n    {\n      \"term\": \"motor imagery\"\n    },\n    {\n      \"term\": \"sensorimotor rhythm\"\n    },\n    {\n      \"term\": \"high-density electroencephalography\"\n    },\n    {\n      \"term\": \"scalp EEG\"\n    }\n  ],\n  \"related_identifiers\": [\n    {\n      \"identifier\": \"https://github.com/nemarDatasets/on004448\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"https://nemar.org/dataexplorer/detail?dataset_id=on004448\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.1038/s41597-023-02260-6\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.18112/openneuro.ds004448.v1.0.2\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDerivedFrom\"\n    }\n  ],\n  \"resource_type_specific\": \"EEG Dataset\",\n  \"modalities\": [\n    \"eeg\"\n  ],\n  \"sizes\": [\n    \"41.0 GB (281 files)\"\n  ],\n  \"formats\": [\n    \".edf\",\n    \".json\",\n    \".md\",\n    \".tsv\",\n    \".yml\"\n  ],\n  \"source_hash\": \"7a5e3a06c5a2b1872cb093df6911e363a8a116d2ed75e8b7ef8750fd0932ed9b\"\n}","last_activity_at":"2026-06-24 09:01:43","source":"openneuro","source_id":"ds004448","subject_count":56,"modalities":"eeg","age_min":19,"age_max":58,"file_size":40980950475,"total_files":1411,"tasks":"smrbmi","metadata_columns_error":null,"staleness_warn_stage":null,"staleness_admin_notified_at":null,"authors":"Seitaro Iwama, Masumi Morishige, Yoshikazu Takahashi, Ryotaro Hirose, Midori Kodama, Junichi Ushiba","license":"CC0","readme":"[![DOI](https://img.shields.io/badge/DOI-10.82901%2Fnemar.on004448-blue)](https://doi.org/10.82901/nemar.on004448)\n\nData Descriptor Article\n\n\nIwama, S., Morishige, M., Kodama, M. et al. High-density scalp electroencephalogram dataset during sensorimotor rhythm-based brain-computer interfacing. Sci Data 10, 385 (2023). https://doi.org/10.1038/s41597-023-02260-6\n\nSample code\n\n\nhttps://github.com/Junichi-Ushiba-Laboratory/pj-hd-smrbmi","bids_version":"1.7.0","sessions_count":5,"publish_date":null,"embedding_dirty":0,"license_tier":"public","zarr_status":"failed","zarr_converted_at":null,"zarr_store_count":null,"zarr_index_etag":null,"zarr_source_commit":null,"archive_status":"ready","archive_size":30857258815,"archive_retry_count":0,"records_status":"ready","archive_skip_reason":null,"zarr_errors":280,"zarr_failure_count":280,"zarr_deterministic":1,"zarr_failed_at":"2026-08-06 20:40:50","num_dataset_citations":0,"num_datapaper_citations":8,"n_channels":129,"electrode_system":"egi-geodesic","has_hed":0,"hed_version":null,"is_exemplar":0,"bytes_present":40978097860,"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":null,"recording_duration_min":null,"recording_duration_max":null,"recording_count":null,"recordings_unavailable":null,"recordings_measured":null,"channel_count_min":null,"channel_count_max":null,"sampling_frequency":1000,"power_line_frequency":50,"eeg_reference":"Cz","placement_scheme":"10 percent system","sweep_stamps":"{\"enrichment_updated_at\":\"2026-06-24 09:09:54\",\"metadata_updated_at\":\"2026-06-24 09:10:08\",\"archive_checked_at\":\"2026-06-24 09:31:57\",\"zarr_checked_at\":null,\"records_checked_at\":\"2026-06-24 09:10:49\",\"citations_updated_at\":\"2026-09-08 03:00:50\",\"channel_montage_checked_at\":\"2026-06-28 23:25:33\",\"hed_checked_at\":\"2026-06-30 04:59:07\",\"data_checked_at\":\"2026-08-10 03:00:41\",\"availability_report_at\":\"2026-07-23 01:18:54\",\"recording_stats_at\":null,\"signal_defaults_at\":\"2026-09-02 12:13:07\"}","participants":56,"num_citations":8,"latest_version":"v1.0.0","zarr_verify_status":null,"zarr_verified_at":null,"owner_username":"nemarAdmin","owner_github":"nemarAdmin","file_size_formatted":"38.17 GB","zarr_data_failures":{"count":280,"detail_ref":"zarr/index.json","compacted_by":"migration_0074"},"zarr_index_url":null,"attestation_deposit_type":null,"attestation_key_status":null,"attestation_deidentified":null,"attestation_no_duplicate":null,"attestation_upstream_source":null,"attestation_accepted_at":null}}