{"dataset":{"id":"56835","dataset_id":"on004446","name":"The BMI-HDEEG dataset 2","description":"This dataset comprises high-density scalp electroencephalography (EEG) recordings collected during sensorimotor rhythm-based brain-computer interface (BCI) tasks. It is intended to support research on motor imagery decoding, neural correlates of sensorimotor rhythms, and BCI performance modeling. The dataset represents a derivative or related version of a previously published high-density EEG BCI dataset.","owner_user_id":15,"status":"active","github_repo":"nemarDatasets/on004446","concept_doi":"10.82901/nemar.on004446","latest_version_doi":"10.82901/nemar.on004446.v1.0.0","created_at":"2026-06-24 08:01:51","updated_at":"2026-08-19 14:36:01","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 2\",\n  \"description\": \"This dataset comprises high-density scalp electroencephalography (EEG) recordings collected during sensorimotor rhythm-based brain-computer interface (BCI) tasks. It is intended to support research on motor imagery decoding, neural correlates of sensorimotor rhythms, and BCI performance modeling. The dataset represents a derivative or related version of a previously published high-density EEG BCI dataset.\",\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\": \"Electroencephalography\",\n      \"subject_scheme\": \"MeSH\",\n      \"value_uri\": \"http://id.nlm.nih.gov/mesh/D004569\"\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 EEG\"\n    }\n  ],\n  \"related_identifiers\": [\n    {\n      \"identifier\": \"https://github.com/nemarDatasets/on004446\",\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.ds004446.v1.0.1\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDerivedFrom\"\n    },\n    {\n      \"identifier\": \"https://nemar.org/dataset/on004446\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    }\n  ],\n  \"funding_references\": [\n    {\n      \"funder_name\": \"JST Moonshot R&D\",\n      \"award_number\": \"JPMJMS2012\"\n    }\n  ],\n  \"resource_type_specific\": \"EEG Dataset\",\n  \"modalities\": [\n    \"eeg\"\n  ],\n  \"sizes\": [\n    \"31.4 GB (238 files)\"\n  ],\n  \"formats\": [\n    \".edf\",\n    \".json\",\n    \".md\",\n    \".tsv\",\n    \".yml\"\n  ],\n  \"source_hash\": \"c19a0c1222df9bed4b03f07e3c6da9f1053f319f19e2b414e68a1848ce8ad3f9\"\n}","last_activity_at":"2026-06-24 08:01:51","source":"openneuro","source_id":"ds004446","subject_count":30,"modalities":"eeg","age_min":18,"age_max":27,"file_size":31382986800,"total_files":1196,"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.on004446-blue)](https://doi.org/10.82901/nemar.on004446)\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":8,"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":19662672736,"archive_retry_count":0,"records_status":"ready","archive_skip_reason":null,"zarr_errors":237,"zarr_failure_count":237,"zarr_deterministic":1,"zarr_failed_at":"2026-08-06 20:53:59","num_dataset_citations":2,"num_datapaper_citations":8,"n_channels":129,"electrode_system":"egi-geodesic","has_hed":0,"hed_version":null,"is_exemplar":0,"bytes_present":31380328068,"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\":\"2026-08-19 14:35:44\",\"metadata_updated_at\":\"2026-08-19 14:35:59\",\"archive_checked_at\":\"2026-06-24 08:24:06\",\"zarr_checked_at\":null,\"records_checked_at\":\"2026-06-24 08:10:37\",\"citations_updated_at\":\"2026-09-08 03:00:49\",\"channel_montage_checked_at\":\"2026-06-28 23:25:17\",\"hed_checked_at\":\"2026-06-30 04:58:50\",\"data_checked_at\":\"2026-08-10 03:00:37\",\"availability_report_at\":\"2026-07-23 01:18:50\",\"recording_stats_at\":null,\"signal_defaults_at\":\"2026-09-02 12:12:51\"}","participants":30,"num_citations":10,"latest_version":"v1.0.0","zarr_verify_status":null,"zarr_verified_at":null,"owner_username":"nemarAdmin","owner_github":"nemarAdmin","file_size_formatted":"29.23 GB","zarr_data_failures":{"count":237,"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}}