{"dataset":{"id":"54527","dataset_id":"on004040","name":"Trance channeling EEG study","description":"This EEG dataset comprises recordings from 13 screened participants across two sessions, featuring alternating 5-minute blocks of trance channeling and resting state conditions. The study design includes three periods per session for each condition, providing a structured investigation of neural activity during trance channeling states compared to baseline resting conditions.","owner_user_id":15,"status":"active","github_repo":"nemarDatasets/on004040","concept_doi":"10.82901/nemar.on004040","latest_version_doi":"10.82901/nemar.on004040.v1.0.0","created_at":"2026-06-23 04:01:51","updated_at":"2026-07-10 22:51:54","zenodo_concept_id":null,"is_sandbox":0,"visibility":"public","ezid_status":"public","enrichment_json":"{\n  \"version\": \"2.0\",\n  \"pipeline_stage\": \"enriched\",\n  \"title\": \"Trance channeling EEG study\",\n  \"description\": \"This EEG dataset comprises recordings from 13 screened participants across two sessions, featuring alternating 5-minute blocks of trance channeling and resting state conditions. The study design includes three periods per session for each condition, providing a structured investigation of neural activity during trance channeling states compared to baseline resting conditions.\",\n  \"license\": \"CC0\",\n  \"dataset_type\": \"raw\",\n  \"authors\": {\n    \"Cedric Cannard\": {},\n    \"Arnaud Delorme\": {},\n    \"Helane Wahbeh\": {}\n  },\n  \"keywords\": [\n    {\n      \"term\": \"EEG\"\n    },\n    {\n      \"term\": \"trance channeling\"\n    },\n    {\n      \"term\": \"resting state\"\n    },\n    {\n      \"term\": \"altered states of consciousness\"\n    },\n    {\n      \"term\": \"brain oscillations\"\n    },\n    {\n      \"term\": \"consciousness\"\n    },\n    {\n      \"term\": \"meditation\"\n    },\n    {\n      \"term\": \"spirituality\"\n    }\n  ],\n  \"related_identifiers\": [\n    {\n      \"identifier\": \"https://github.com/nemarDatasets/on004040\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"https://nemar.org/dataexplorer/detail?dataset_id=on004040\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.18112/openneuro.ds004040.v1.0.0\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDerivedFrom\"\n    },\n    {\n      \"identifier\": \"10.1234/example\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsReferencedBy\"\n    }\n  ],\n  \"resource_type_specific\": \"EEG Dataset\",\n  \"modalities\": [\n    \"eeg\"\n  ],\n  \"sizes\": [\n    \"12.4 GB (31 files)\"\n  ],\n  \"formats\": [\n    \".ced\",\n    \".json\",\n    \".m\",\n    \".md\",\n    \".set\",\n    \".tsv\",\n    \".xlsx\",\n    \".yml\"\n  ],\n  \"methods_description\": \"EEG data were collected across two separate sessions per participant. Each session consisted of alternating 5-minute blocks of trance channeling and resting state conditions, with three periods per session for each condition.\",\n  \"source_hash\": \"903d9180c28c4db6746f274ce65d7725714a930280d21f2d9e161f8ceda483d8\"\n}","last_activity_at":"2026-06-23 04:01:51","source":"openneuro","source_id":"ds004040","subject_count":13,"modalities":"eeg","age_min":null,"age_max":null,"file_size":12440306120,"total_files":167,"tasks":"trance","metadata_columns_error":null,"staleness_warn_stage":null,"staleness_admin_notified_at":null,"authors":"Cedric Cannard, Arnaud Delorme, Helane Wahbeh","license":"CC0","readme":"[![DOI](https://img.shields.io/badge/DOI-10.82901%2Fnemar.on004040-blue)](https://doi.org/10.82901/nemar.on004040)\n\nThis group contains 13 participants that went through a thorough \nscreening and did 2 sessions (different days) each. Experiment design \ncorresponded in alternating (5 minutes) blocs of trance channeling and \nresting state (3 periods per session for each condition).","bids_version":"1.1.1","sessions_count":2,"publish_date":null,"embedding_dirty":0,"license_tier":"public","zarr_status":"ready","zarr_converted_at":"2026-08-05 02:40:13","zarr_store_count":26,"zarr_index_etag":"e5471688cb1f0a20d87bc966d97b092e","zarr_source_commit":"1e626b25a62e79403b43e92fa028a3f074f03c36","archive_status":"ready","archive_size":10954753229,"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":0,"n_channels":64,"electrode_system":"10-10","has_hed":0,"hed_version":null,"is_exemplar":0,"bytes_present":12440231727,"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":92023,"recording_duration_min":2718,"recording_duration_max":5059,"recording_count":26,"recordings_unavailable":0,"recordings_measured":26,"channel_count_min":64,"channel_count_max":64,"sampling_frequency":512,"power_line_frequency":60,"eeg_reference":"Fp1 AF7 AF3 F1 F3 F5 F7 FT7 FC5 FC3 FC1 C1 C3 C5 T7 TP7 CP5 CP3 CP1 P1 P3 P5 P7 P9 PO7 PO3 O1 Iz Oz POz Pz CPz Fpz Fp2 AF8 AF4 Afz Fz F2 F4 F6 F8 FT8 FC6 FC4 FC2 FCz Cz C2 C4 C6 T8 TP8 CP6 CP4 CP2 P2 P4 P6 P8 P10 PO8 PO4 O2","placement_scheme":null,"sweep_stamps":"{\"enrichment_updated_at\":\"2026-06-23 04:11:22\",\"metadata_updated_at\":\"2026-06-23 04:11:22\",\"archive_checked_at\":\"2026-06-23 04:19:13\",\"zarr_checked_at\":null,\"records_checked_at\":\"2026-06-23 04:12:33\",\"citations_updated_at\":null,\"channel_montage_checked_at\":\"2026-06-28 23:18:47\",\"hed_checked_at\":\"2026-06-30 04:51:19\",\"data_checked_at\":\"2026-08-05 03:00:28\",\"availability_report_at\":\"2026-07-23 01:16:35\",\"recording_stats_at\":\"2026-09-02 11:32:37\",\"signal_defaults_at\":\"2026-09-02 12:06:37\"}","participants":13,"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":"11.59 GB","zarr_data_failures":null,"zarr_index_url":"https://zarr.nemar.org/on004040/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}}