{"dataset":{"id":"54517","dataset_id":"on003969","name":"Meditation vs thinking task","description":"This dataset comprises EEG recordings from participants performing alternating meditation and active thinking tasks. Data were collected at the Meditation Research Institute in Rishikesh, India, with participants completing four blocks of either breath-counting meditation, tradition-specific meditation, or active thinking tasks with eyes closed. The dataset supports investigation of neural correlates of meditative states versus cognitively engaged thinking.","owner_user_id":15,"status":"active","github_repo":"nemarDatasets/on003969","concept_doi":"10.82901/nemar.on003969","latest_version_doi":"10.82901/nemar.on003969.v1.0.0","created_at":"2026-06-22 23:01:42","updated_at":"2026-07-10 22:22:42","zenodo_concept_id":null,"is_sandbox":0,"visibility":"public","ezid_status":"public","enrichment_json":"{\n  \"version\": \"2.0\",\n  \"pipeline_stage\": \"enriched\",\n  \"title\": \"Meditation vs thinking task\",\n  \"description\": \"This dataset comprises EEG recordings from participants performing alternating meditation and active thinking tasks. Data were collected at the Meditation Research Institute in Rishikesh, India, with participants completing four blocks of either breath-counting meditation, tradition-specific meditation, or active thinking tasks with eyes closed. The dataset supports investigation of neural correlates of meditative states versus cognitively engaged thinking.\",\n  \"methods_description\": \"EEG data were collected while participants sat on a blanket or chair with eyes closed in a darkened room. Participants performed four blocks alternating between meditation and thinking tasks: the first meditation block consisted of breath-counting meditation for all participants, while the second meditation block was tradition-specific meditation (or breath-counting for controls). Half of participants began with meditation and half with thinking blocks.\",\n  \"license\": \"CC0\",\n  \"dataset_type\": \"raw\",\n  \"authors\": {\n    \"Arnaud Delorme\": {},\n    \"Claire Braboszcz\": {\n      \"orcid\": \"0000-0001-9572-6653\"\n    }\n  },\n  \"keywords\": [\n    {\n      \"term\": \"EEG\"\n    },\n    {\n      \"term\": \"meditation\"\n    },\n    {\n      \"term\": \"cognitive task\"\n    },\n    {\n      \"term\": \"brain activity\"\n    },\n    {\n      \"term\": \"mindfulness\"\n    }\n  ],\n  \"related_identifiers\": [\n    {\n      \"identifier\": \"https://github.com/nemarDatasets/on003969\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"https://nemar.org/dataexplorer/detail?dataset_id=on003969\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.1371/journal.pone.0170647\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsReferencedBy\"\n    },\n    {\n      \"identifier\": \"10.18112/openneuro.ds003969.v1.0.0\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDerivedFrom\"\n    }\n  ],\n  \"resource_type_specific\": \"EEG Dataset\",\n  \"modalities\": [\n    \"eeg\"\n  ],\n  \"sizes\": [\n    \"58.5 GB (404 files)\"\n  ],\n  \"formats\": [\n    \".bdf\",\n    \".json\",\n    \".m\",\n    \".md\",\n    \".ods\",\n    \".tsv\",\n    \".txt\",\n    \".xls\",\n    \".yml\"\n  ],\n  \"source_hash\": \"e102ce4b3573872441227d762875078100cd0c21dcfd3dd658b8b6c2f8cef8e7\"\n}","last_activity_at":"2026-06-22 23:01:42","source":"openneuro","source_id":"ds003969","subject_count":98,"modalities":"eeg","age_min":22,"age_max":74,"file_size":58479198042,"total_files":1195,"tasks":"med1breath,med2,think1,think2","metadata_columns_error":null,"staleness_warn_stage":null,"staleness_admin_notified_at":null,"authors":"Arnaud Delorme, Claire Braboszcz","license":"CC0","readme":"Data collection took place at the Meditation Research Institute (MRI) in Rishikesh, India, under the supervision of Arnaud Delorme, Ph.D. The project was approved by the local MRI Indian ethical committee and the ethical committee of the University of California San Diego (IRB project # 090731).\n\nParticipants sat either on a blanket on the floor or on a chair for both experimental periods depending on their personal preference. Participants were asked to keep their eyes closed, and all lighting in the room was turned off during data collection. An intercom allowed communication between the experimental and the recording room.\n\nParticipants performed four blocks, 2 meditation blocks interspaced by two thining blocks (in which they are instructed to think actively). Half of the participants start with a meditation block, and half of them start with a thinking block. The first meditation block is a breath counting meditation for all participants. The second block is a tradition-specific meditation - except for the control group, for which it is a breath counting meditation.","bids_version":"v1.2.1","sessions_count":null,"publish_date":null,"embedding_dirty":0,"license_tier":"public","zarr_status":"ready","zarr_converted_at":"2026-09-08 14:56:36","zarr_store_count":392,"zarr_index_etag":"31eafd0c0d750cb857925cc17e4e833e","zarr_source_commit":"2d88704c49a0cedbda1f18eac531a7f0781049fa","archive_status":"ready","archive_size":40967203151,"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":2,"num_datapaper_citations":0,"n_channels":64,"electrode_system":"10-10","has_hed":0,"hed_version":null,"is_exemplar":0,"bytes_present":58478502991,"data_complete":1,"withdrawn_at":null,"withdrawn_reason":null,"archive_complete":null,"archive_absent_files":null,"archive_declared_files":null,"zarr_pool_breaks":0,"total_recording_duration":239521,"recording_duration_min":600,"recording_duration_max":951,"recording_count":392,"recordings_unavailable":0,"recordings_measured":392,"channel_count_min":73,"channel_count_max":80,"sampling_frequency":1024,"power_line_frequency":50,"eeg_reference":"CMS/DRL","placement_scheme":null,"sweep_stamps":"{\"enrichment_updated_at\":\"2026-06-22 23:09:43\",\"metadata_updated_at\":\"2026-06-22 23:09:43\",\"archive_checked_at\":\"2026-06-22 23:43:03\",\"zarr_checked_at\":null,\"records_checked_at\":\"2026-06-22 23:11:16\",\"citations_updated_at\":\"2026-09-08 03:00:51\",\"channel_montage_checked_at\":\"2026-06-28 23:17:33\",\"hed_checked_at\":\"2026-06-30 04:49:46\",\"data_checked_at\":\"2026-08-04 03:00:30\",\"availability_report_at\":\"2026-07-23 01:16:02\",\"signal_defaults_at\":\"2026-09-02 12:05:21\"}","participants":98,"num_citations":2,"latest_version":"v1.0.0","zarr_verify_status":null,"zarr_verified_at":null,"owner_username":"nemarAdmin","owner_github":"nemarAdmin","file_size_formatted":"54.46 GB","zarr_data_failures":null,"zarr_index_url":"https://zarr.nemar.org/on003969/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}}