{"dataset":{"id":"56525","dataset_id":"on004348","name":"Ear-EEG Sleep Monitoring 2017 (EESM17)","description":"The Ear-EEG Sleep Monitoring 2017 (EESM17) dataset comprises nightly polysomnographic recordings from 9 healthy participants, combining conventional EEG, EOG, and chin EMG with 14 ear-EEG electrodes. The dataset includes both wake-state recordings (subjects relaxing before sleep) and sleep-state recordings (overnight monitoring at participants' homes), with sleep scoring initiated at lights out. This resource enables investigation of ear-based EEG for sleep monitoring applications.","owner_user_id":15,"status":"active","github_repo":"nemarDatasets/on004348","concept_doi":"10.82901/nemar.on004348","latest_version_doi":"10.82901/nemar.on004348.v1.0.0","created_at":"2026-06-24 03:01:44","updated_at":"2026-07-10 22:29:09","zenodo_concept_id":null,"is_sandbox":0,"visibility":"public","ezid_status":"public","enrichment_json":"{\n  \"version\": \"2.0\",\n  \"pipeline_stage\": \"validated\",\n  \"title\": \"Ear-EEG Sleep Monitoring 2017 (EESM17)\",\n  \"description\": \"The Ear-EEG Sleep Monitoring 2017 (EESM17) dataset comprises nightly polysomnographic recordings from 9 healthy participants, combining conventional EEG, EOG, and chin EMG with 14 ear-EEG electrodes. The dataset includes both wake-state recordings (subjects relaxing before sleep) and sleep-state recordings (overnight monitoring at participants' homes), with sleep scoring initiated at lights out. This resource enables investigation of ear-based EEG for sleep monitoring applications.\",\n  \"methods_description\": \"Partial polysomnography measurements were collected during nightly recordings at participants' homes. Data acquisition included conventional EEG, EOG, and chin EMG combined with 14 ear-EEG electrodes. Recordings consisted of two sessions per subject: a wake task (relaxation period before sleep) and a sleep task (overnight monitoring beginning at lights out). Equipment was mounted in the afternoon prior to recordings.\",\n  \"license\": \"CC0\",\n  \"dataset_type\": \"raw\",\n  \"authors\": {\n    \"Kaare B. Mikkelsen\": {\n      \"orcid\": \"0000-0002-7360-8629\"\n    },\n    \"David B. Villadsen\": {},\n    \"Laura Birch\": {},\n    \"Marit Otto\": {},\n    \"Preben Kidmose\": {}\n  },\n  \"keywords\": [\n    {\n      \"term\": \"EEG\"\n    },\n    {\n      \"term\": \"sleep monitoring\"\n    },\n    {\n      \"term\": \"Polysomnography\",\n      \"subject_scheme\": \"MeSH\",\n      \"value_uri\": \"http://id.nlm.nih.gov/mesh/D017286\"\n    },\n    {\n      \"term\": \"wearable electrodes\"\n    },\n    {\n      \"term\": \"ear-EEG\"\n    },\n    {\n      \"term\": \"Electrooculography\",\n      \"subject_scheme\": \"MeSH\",\n      \"value_uri\": \"http://id.nlm.nih.gov/mesh/D004585\"\n    }\n  ],\n  \"related_identifiers\": [\n    {\n      \"identifier\": \"https://github.com/nemarDatasets/on004348\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"https://nemar.org/dataexplorer/detail?dataset_id=on004348\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.1186/s12938-017-0400-5\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.18112/openneuro.ds004348.v1.0.5\",\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    \"13.0 GB (132 files)\"\n  ],\n  \"formats\": [\n    \".csv\",\n    \".docx\",\n    \".edf\",\n    \".fdt\",\n    \".json\",\n    \".m\",\n    \".mat\",\n    \".md\",\n    \".mlx\",\n    \".py\",\n    \".set\",\n    \".tsv\",\n    \".txt\",\n    \".xlsx\",\n    \".yml\"\n  ],\n  \"source_hash\": \"08de311eab33fe8fa82c97867ca695f6b5db6e64f8a4d10a10c70bfe55de5a43\"\n}","last_activity_at":"2026-06-24 03:01:44","source":"openneuro","source_id":"ds004348","subject_count":9,"modalities":"eeg","age_min":null,"age_max":null,"file_size":13210478882,"total_files":232,"tasks":"sleep,wake","metadata_columns_error":null,"staleness_warn_stage":null,"staleness_admin_notified_at":null,"authors":"Kaare B. Mikkelsen, David B. Villadsen, Laura Birch, Marit Otto, Preben Kidmose","license":"CC0","readme":"[![DOI](https://img.shields.io/badge/DOI-10.82901%2Fnemar.on004348-blue)](https://doi.org/10.82901/nemar.on004348)\n\nEar-EEG Sleep Monitoring 2017 (EESM17) data set\r\n\r\n**Overview**\r\n\r\nThis dataset was collected as part of a research project on ear-EEG sleep monitoring which took place in 2017.\r\n\r\nThe data set contains nightly EEG recordings from 9 healthy participants ('subjects'). The recordings consist of 'partial polysomnography' (PSG) measurements, including EEG, EOG and chin EMG combined with 14 ear-EEG electrodes.\r\n\r\n**Format**\r\n\r\nThe dataset is formatted according to the Brain Imaging Data Structure. See the 'dataset_description.json' file for the specific BIDS version used. The EEG data format chosen is the '.set' format of EEGLAB.\r\n\r\nFor more information, see the following link:\r\nhttps://bids-specification.readthedocs.io/en/stable/01-introduction.html\r\n\r\n\r\n**Task description**\r\n\r\nThe subjects were instructed to perform two recordings. In the first recording, they had to simply relax in a chair either reading or watching television, prior to going to bed. These recordings are labeled as 'wake' task. After this, the real recording started, which took place during the night and began when the subject went to bed. These recordings are labeled as having task 'sleep'. \r\nThe recording equipment was mounted in the afternoon, and the recordings took place at the subject's home.\r\n\r\nThe data set was previously described in the paper: https://doi.org/10.1186/s12938-017-0400-5\r\nWhen citing this data set, please refer to this paper.\r\n\r\n\r\nPlease note that for all subjects, the sleep scoring begins at 'Lights out'.\r\n\r\n** Notes **\r\n\r\nDue to a miscommunication in the original sleep study, two ear-EEG channels, ERB1 and ELB1, were not used. However, they are included in the data set. Both electrode positions were very close to the ERB and ELB positions. \r\n\r\n**Contact**\r\n\r\nFor questions regarding this data set, contact: \r\nKaare Mikkelsen, Mikkelsen.kaare@ece.au.dk, https://orcid.org/0000-0002-7360-8629","bids_version":"1.7.0","sessions_count":1,"publish_date":null,"embedding_dirty":0,"license_tier":"public","zarr_status":"ready","zarr_converted_at":"2026-08-12 10:56:23","zarr_store_count":36,"zarr_index_etag":"e2b6e8b77ac54035f2518b0cc60aa4b1","zarr_source_commit":"5bd13926a2b1f34b3dc14c0a188437415f788697","archive_status":"ready","archive_size":6500877520,"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":95,"n_channels":34,"electrode_system":"other","has_hed":0,"hed_version":null,"is_exemplar":0,"bytes_present":13013085327,"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":613992,"recording_duration_min":3608,"recording_duration_max":35016,"recording_count":36,"recordings_unavailable":0,"recordings_measured":36,"channel_count_min":34,"channel_count_max":35,"sampling_frequency":200,"power_line_frequency":50,"eeg_reference":"Cz","placement_scheme":"10/20","sweep_stamps":"{\"enrichment_updated_at\":\"2026-06-24 03:09:11\",\"metadata_updated_at\":\"2026-06-24 03:09:20\",\"archive_checked_at\":\"2026-06-24 03:14:59\",\"zarr_checked_at\":null,\"records_checked_at\":\"2026-06-24 03:11:04\",\"citations_updated_at\":\"2026-09-08 03:00:46\",\"channel_montage_checked_at\":\"2026-06-28 23:23:00\",\"hed_checked_at\":\"2026-06-30 04:56:45\",\"data_checked_at\":\"2026-08-09 03:00:38\",\"availability_report_at\":\"2026-07-23 01:18:08\",\"recording_stats_at\":\"2026-09-02 11:32:42\",\"signal_defaults_at\":\"2026-09-02 12:10:35\"}","participants":9,"num_citations":95,"latest_version":"v1.0.0","zarr_verify_status":null,"zarr_verified_at":null,"owner_username":"nemarAdmin","owner_github":"nemarAdmin","file_size_formatted":"12.30 GB","zarr_data_failures":null,"zarr_index_url":"https://zarr.nemar.org/on004348/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}}