{"dataset":{"id":"61241","dataset_id":"on007558","name":"EEG Pre/Post Intervention Dataset","description":"This dataset comprises EEG recordings collected from participants across multiple groups, assessed at pre- and post-intervention timepoints. It was designed to investigate changes in neural activity associated with an intervention, organized following the BIDS specification for interoperability. The dataset supports analyses such as EEG signal processing, functional connectivity, and pre/post comparisons.","owner_user_id":15,"status":"active","github_repo":"nemarDatasets/on007558","concept_doi":"10.82901/nemar.on007558","latest_version_doi":"10.82901/nemar.on007558.v1.0.0","created_at":"2026-06-30 13:01:38","updated_at":"2026-08-18 23:44:37","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 Pre/Post Intervention Dataset\",\n  \"description\": \"This dataset comprises EEG recordings collected from participants across multiple groups, assessed at pre- and post-intervention timepoints. It was designed to investigate changes in neural activity associated with an intervention, organized following the BIDS specification for interoperability. The dataset supports analyses such as EEG signal processing, functional connectivity, and pre/post comparisons.\",\n  \"methods_description\": \"EEG data were recorded using standard acquisition systems. Recordings are organized by participant and session (pre/post intervention), with detailed acquisition parameters provided in JSON sidecar files accompanying each EEG recording.\",\n  \"license\": \"CC0\",\n  \"dataset_type\": \"raw\",\n  \"authors\": {\n    \"Mengsha Qi\": {}\n  },\n  \"keywords\": [\n    {\n      \"term\": \"EEG\"\n    },\n    {\n      \"term\": \"intervention\"\n    },\n    {\n      \"term\": \"functional connectivity\"\n    },\n    {\n      \"term\": \"BIDS\"\n    },\n    {\n      \"term\": \"neural activity\"\n    }\n  ],\n  \"related_identifiers\": [\n    {\n      \"identifier\": \"https://github.com/nemarDatasets/on007558\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"https://nemar.org/dataset/on007558\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.18112/openneuro.ds007558\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsVersionOf\"\n    },\n    {\n      \"identifier\": \"10.18112/openneuro.ds007558.v1.0.0\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDerivedFrom\"\n    }\n  ],\n  \"resource_type_general\": \"Dataset\",\n  \"resource_type_specific\": \"EEG Dataset\",\n  \"modalities\": [\n    \"eeg\"\n  ],\n  \"sizes\": [\n    \"717.9 MB (122 files)\"\n  ],\n  \"formats\": [\n    \".edf\",\n    \".json\",\n    \".md\",\n    \".tsv\",\n    \".yml\"\n  ],\n  \"source_hash\": \"a061d938aec60d902b4d38353924c55c44b8ae72d5df502fef8f504efb0f28f5\"\n}","last_activity_at":"2026-06-30 13:01:38","source":"openneuro","source_id":"ds007558","subject_count":67,"modalities":"eeg","age_min":null,"age_max":null,"file_size":719741832,"total_files":855,"tasks":"rest","metadata_columns_error":null,"staleness_warn_stage":null,"staleness_admin_notified_at":null,"authors":"Mengsha Qi","license":"CC0","readme":"[![DOI](https://img.shields.io/badge/DOI-10.82901%2Fnemar.on007558-blue)](https://doi.org/10.82901/nemar.on007558)\n\n# Dataset Description\n\n## Overview\nThis dataset contains EEG recordings from a study investigating neural activity changes before and after an intervention. The data are organized following the Brain Imaging Data Structure (BIDS) specification.\n\nThe dataset includes multiple participant groups and timepoints:\n- Group 1, Group 2, Group 3\n- Pre-intervention (pre) and Post-intervention (post)\n\n## Participants\nParticipants are labeled using anonymized IDs (e.g., sub-001, sub-002, etc.). Demographic and session-related information are provided in the corresponding TSV files where applicable.\n\n## Data Structure\nThe dataset follows the BIDS format:\n\n- `sub-XXX/`\n  - `ses-pre/` or `ses-post/`\n    - `eeg/`\n      - EEG recordings (.edf)\n      - Metadata files (.json)\n      - Events files (.tsv)\n\nEach subject contains EEG recordings organized by session (pre/post).\n\n## Experimental Design\nThe study compares neural activity before and after an intervention. Participants are divided into different groups to evaluate potential differences in outcomes.\n\n## Data Acquisition\nEEG data were recorded using standard acquisition systems. Detailed acquisition parameters are stored in the accompanying JSON sidecar files.\n\n## Data Processing\nThe dataset has been reorganized into BIDS format. File naming, metadata, and structure have been standardized to ensure compatibility with BIDS-compliant tools.\n\n## Known Issues\n- Some warnings may appear during BIDS validation but do not affect data usability.\n- All critical validation errors have been resolved.\n\n## Usage Notes\nThis dataset can be used for:\n- EEG signal analysis\n- Functional connectivity studies\n- Pre/post intervention comparisons\n\n## License\nPlease refer to the dataset repository for licensing information.\n\n## Acknowledgements\nWe thank all participants and researchers involved in data collection and processing.","bids_version":"1.8.0","sessions_count":2,"publish_date":null,"embedding_dirty":0,"license_tier":"public","zarr_status":"ready","zarr_converted_at":"2026-08-23 03:51:22","zarr_store_count":120,"zarr_index_etag":"038a50fda2e02be41cab40a2ed40f150","zarr_source_commit":"16b2719b18c224f93a776e48796530e3fdec696f","archive_status":"ready","archive_size":439804694,"archive_retry_count":0,"records_status":"ready","archive_skip_reason":null,"zarr_errors":1,"zarr_failure_count":1,"zarr_deterministic":1,"zarr_failed_at":"2026-08-23 03:51:22","num_dataset_citations":0,"num_datapaper_citations":0,"n_channels":19,"electrode_system":"10-20","has_hed":0,"hed_version":null,"is_exemplar":0,"bytes_present":717853924,"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":92399,"recording_duration_min":512,"recording_duration_max":1248,"recording_count":121,"recordings_unavailable":1,"recordings_measured":120,"channel_count_min":19,"channel_count_max":21,"sampling_frequency":200,"power_line_frequency":60,"eeg_reference":"common","placement_scheme":"10-10","sweep_stamps":"{\"enrichment_updated_at\":\"2026-08-18 23:44:18\",\"metadata_updated_at\":\"2026-08-18 23:44:34\",\"archive_checked_at\":\"2026-06-30 13:11:33\",\"zarr_checked_at\":null,\"records_checked_at\":\"2026-06-30 13:11:10\",\"citations_updated_at\":null,\"channel_montage_checked_at\":null,\"hed_checked_at\":null,\"data_checked_at\":\"2026-09-03 03:01:44\",\"availability_report_at\":\"2026-07-23 01:33:01\",\"recording_stats_at\":\"2026-09-02 11:34:03\",\"signal_defaults_at\":\"2026-09-02 12:56:09\"}","participants":67,"num_citations":0,"latest_version":"v1.0.0","zarr_verify_status":null,"zarr_verified_at":null,"owner_username":"nemarAdmin","owner_github":"nemarAdmin","file_size_formatted":"686 MB","zarr_data_failures":{"count":1,"detail_ref":"zarr/index.json","compacted_by":"migration_0074"},"zarr_index_url":"https://zarr.nemar.org/on007558/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}}