{"dataset":{"id":"61145","dataset_id":"on006035","name":"somatomotor","description":"This dataset comprises multi-subject, multi-modal neuroimaging recordings (structural MRI, MEG, and EEG) collected during a median nerve stimulation paradigm. Participants received electrical stimuli to the right wrist median nerve and responded by lifting their left index finger as quickly as possible. The dataset supports investigation of somatosensory and motor cortical responses using combined MEG/EEG/MRI methodology.","owner_user_id":15,"status":"active","github_repo":"nemarDatasets/on006035","concept_doi":"10.82901/nemar.on006035","latest_version_doi":"10.82901/nemar.on006035.v1.0.0","created_at":"2026-06-28 10:01:00","updated_at":"2026-08-19 00:59:13","zenodo_concept_id":null,"is_sandbox":0,"visibility":"public","ezid_status":"public","enrichment_json":"{\n  \"version\": \"2.0\",\n  \"pipeline_stage\": \"validated\",\n  \"title\": \"somatomotor\",\n  \"description\": \"This dataset comprises multi-subject, multi-modal neuroimaging recordings (structural MRI, MEG, and EEG) collected during a median nerve stimulation paradigm. Participants received electrical stimuli to the right wrist median nerve and responded by lifting their left index finger as quickly as possible. The dataset supports investigation of somatosensory and motor cortical responses using combined MEG/EEG/MRI methodology.\",\n  \"methods_description\": \"MRI (T1w), MEG, and EEG data were acquired while median nerve electrical stimuli were delivered at the right wrist, and subjects responded by lifting their left hand index finger. Three anatomical fiducials (nasion, left and right pre-auricular points) were digitized to co-register MEG with MRI. Trigger codes recorded stimulus (32) and response (16) events.\",\n  \"license\": \"CC0\",\n  \"dataset_type\": \"raw\",\n  \"authors\": {\n    \"Fa-Hsuan Lin\": {},\n    \"Deirdre Foxe von Pechmann\": {},\n    \"Kaisu Lankinen\": {},\n    \"Seppo Ahlfors\": {},\n    \"Bruce Rosen\": {},\n    \"Jyrki Ahveninen\": {},\n    \"Matti Hämäläinen\": {},\n    \"Tommi Raij\": {}\n  },\n  \"keywords\": [\n    {\n      \"term\": \"MEG\"\n    },\n    {\n      \"term\": \"EEG\"\n    },\n    {\n      \"term\": \"median nerve stimulation\"\n    },\n    {\n      \"term\": \"somatosensory evoked potentials\"\n    },\n    {\n      \"term\": \"motor response\"\n    },\n    {\n      \"term\": \"Magnetic Resonance Imaging\",\n      \"subject_scheme\": \"MeSH\",\n      \"value_uri\": \"http://id.nlm.nih.gov/mesh/D008279\"\n    }\n  ],\n  \"related_identifiers\": [\n    {\n      \"identifier\": \"10.18112/openneuro.TBD\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDerivedFrom\"\n    },\n    {\n      \"identifier\": \"https://github.com/nemarDatasets/on006035\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"https://nemar.org/dataset/on006035\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.21105/joss.01896\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"References\"\n    },\n    {\n      \"identifier\": \"10.1038/sdata.2018.110\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"References\"\n    },\n    {\n      \"identifier\": \"10.18112/openneuro.ds006035.v1.0.0\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDerivedFrom\"\n    }\n  ],\n  \"funding_references\": [\n    {\n      \"funder_name\": \"NIH\",\n      \"award_number\": \"P41RR014075\"\n    },\n    {\n      \"funder_name\": \"NIH\",\n      \"award_number\": \"P41EB030006\"\n    }\n  ],\n  \"resource_type_general\": \"Dataset\",\n  \"resource_type_specific\": \"MEG Dataset\",\n  \"modalities\": [\n    \"meg\",\n    \"anat\"\n  ],\n  \"sizes\": [\n    \"3.3 GB (21 files)\"\n  ],\n  \"formats\": [\n    \".fif\",\n    \".gz\",\n    \".json\",\n    \".md\",\n    \".tsv\",\n    \".yml\"\n  ],\n  \"source_hash\": \"cb7ff175774d7127ca0989e02ef0ec86d6dc4d6f022d7ec6765f6fa5342d1bf7\"\n}","last_activity_at":"2026-06-28 10:01:00","source":"openneuro","source_id":"ds006035","subject_count":5,"modalities":"anat,meg","age_min":25,"age_max":40,"file_size":3295037739,"total_files":102,"tasks":"somatomotor","metadata_columns_error":null,"staleness_warn_stage":null,"staleness_admin_notified_at":null,"authors":"Fa-Hsuan Lin, Deirdre Foxe von Pechmann, Kaisu Lankinen, Seppo Ahlfors, Bruce Rosen, Jyrki Ahveninen, Matti Hämäläinen, Tommi Raij","license":"CC0","readme":"[![DOI](https://img.shields.io/badge/DOI-10.82901%2Fnemar.on006035-blue)](https://doi.org/10.82901/nemar.on006035)\n\n \nAccession: #: ds006035\nDescription: Multi-subject, multi-modal (sMRI+MEG+EEG) neuroimaging dataset for median nerve stimulation and motor responses. \nThis dataset contains MRI (T1w), MEG, and EEG data for median nerve electrical stimuli delivered at the right wrist. \nThe task was to respond by lifting the left hand idex finger as quickly as possible after each right median nerve stimulus.  \n\nmeg/\n\n----\n\nThree anatomical fiducials were digitized for aligning the MEG with the MRI: \n1. nasion (lowest depression between the eyes);\n2. left pre-auricular point;\n3. right pre-auricular point.  \n\n\n\nThe following triggers are included in the .fif files and are also used in the “value” column of the meg events .tsv files:\n\nTrigger     Label                                        Simplified Label\n\n32             somatosensory stimulus      somatosensory\n\n16             finger lift response                finger\n\n\nIf you wish to publish any of these data, please acknowledge the authors. \n\n\n\nBIDS References\n----------\nAppelhoff, S., Sanderson, M., Brooks, T., Vliet, M., Quentin, R., Holdgraf, C., Chaumon, M., Mikulan, E., Tavabi, K., Höchenberger, R., Welke, D., Brunner, C., Rockhill, A., Larson, E., Gramfort, A. and Jas, M. (2019). MNE-BIDS: Organizing electrophysiological data into the BIDS format and facilitating their analysis. Journal of Open Source Software 4: (1896).https://doi.org/10.21105/joss.01896\n\nNiso, G., Gorgolewski, K. J., Bock, E., Brooks, T. L., Flandin, G., Gramfort, A., Henson, R. N., Jas, M., Litvak, V., Moreau, J., Oostenveld, R., Schoffelen, J., Tadel, F., Wexler, J., Baillet, S. (2018). MEG-BIDS, the brain imaging data structure extended to magnetoencephalography. Scientific Data, 5, 180110.https://doi.org/10.1038/sdata.2018.110\n\n","bids_version":"1.7.0","sessions_count":2,"publish_date":null,"embedding_dirty":0,"license_tier":"public","zarr_status":"failed","zarr_converted_at":"2026-07-05 04:44:13","zarr_store_count":15,"zarr_index_etag":"9f74e916c408c47df9ea73bd218b24ed","zarr_source_commit":"703509675fbd97b439cf5219deadd6a497b8ff0d","archive_status":"ready","archive_size":2076105094,"archive_retry_count":0,"records_status":"ready","archive_skip_reason":null,"zarr_errors":15,"zarr_failure_count":15,"zarr_deterministic":0,"zarr_failed_at":"2026-08-26 20:40:24","num_dataset_citations":0,"num_datapaper_citations":0,"n_channels":null,"electrode_system":null,"has_hed":0,"hed_version":null,"is_exemplar":0,"bytes_present":3294285868,"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":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":null,"power_line_frequency":null,"eeg_reference":null,"placement_scheme":null,"sweep_stamps":"{\"enrichment_updated_at\":\"2026-08-19 00:59:03\",\"metadata_updated_at\":\"2026-08-19 00:59:12\",\"archive_checked_at\":\"2026-06-28 10:10:49\",\"zarr_checked_at\":null,\"records_checked_at\":\"2026-06-28 10:09:50\",\"citations_updated_at\":null,\"channel_montage_checked_at\":null,\"hed_checked_at\":\"2026-06-30 05:27:15\",\"data_checked_at\":\"2026-08-25 03:00:27\",\"availability_report_at\":\"2026-07-23 01:28:04\",\"recording_stats_at\":null,\"signal_defaults_at\":\"2026-09-02 12:42:47\"}","participants":5,"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":"3.07 GB","zarr_data_failures":{"count":15,"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}}