{"dataset":{"id":"49849","dataset_id":"on000248","name":" ","description":"The MNE-Sample-Data dataset comprises simultaneous MEG and EEG recordings acquired from a single subject using a Neuromag Vectorview system at the Martinos Center for Biomedical Imaging. The experiment involved visual stimulation (checkerboard patterns presented to left and right visual fields) and auditory stimulation (tones to left and right ears), with occasional face stimuli requiring motor responses. Structural MRI data from a 1.5 T Siemens scanner and Freesurfer-derived anatomical derivatives are included, providing a comprehensive reference dataset for MEG/EEG analysis and method development.","owner_user_id":15,"status":"active","github_repo":"nemarDatasets/on000248","concept_doi":"10.82901/nemar.on000248","latest_version_doi":"10.82901/nemar.on000248.v1.0.0","created_at":"2026-06-20 18:01:20","updated_at":"2026-07-10 22:08:16","zenodo_concept_id":null,"is_sandbox":0,"visibility":"public","ezid_status":"public","enrichment_json":"{\n  \"version\": \"2.0\",\n  \"pipeline_stage\": \"enriched\",\n  \"title\": \" \",\n  \"description\": \"The MNE-Sample-Data dataset comprises simultaneous MEG and EEG recordings acquired from a single subject using a Neuromag Vectorview system at the Martinos Center for Biomedical Imaging. The experiment involved visual stimulation (checkerboard patterns presented to left and right visual fields) and auditory stimulation (tones to left and right ears), with occasional face stimuli requiring motor responses. Structural MRI data from a 1.5 T Siemens scanner and Freesurfer-derived anatomical derivatives are included, providing a comprehensive reference dataset for MEG/EEG analysis and method development.\",\n  \"methods_description\": \"MEG and EEG data were acquired simultaneously using a Neuromag Vectorview system with a 60-channel EEG electrode cap. Visual stimuli (checkerboard patterns) were presented to the left and right visual fields with 750 ms inter-stimulus intervals, interspersed with tones to the left or right ear. Occasional face stimuli at the center of the visual field required right index finger key presses. Structural MRI was acquired on a Siemens 1.5 T Sonata scanner using an MPRAGE sequence.\",\n  \"license\": \"CC0\",\n  \"dataset_type\": \"raw\",\n  \"authors\": {\n    \"Alexandre Gramfort\": {\n      \"orcid\": \"0000-0001-9791-4404\"\n    },\n    \"Matti S Hämäläinen\": {}\n  },\n  \"keywords\": [\n    {\n      \"term\": \"MEG\"\n    },\n    {\n      \"term\": \"EEG\"\n    },\n    {\n      \"term\": \"simultaneous MEG-EEG\"\n    },\n    {\n      \"term\": \"visual evoked potentials\"\n    },\n    {\n      \"term\": \"auditory evoked potentials\"\n    },\n    {\n      \"term\": \"motor response\"\n    },\n    {\n      \"term\": \"structural MRI\"\n    },\n    {\n      \"term\": \"BIDS\"\n    },\n    {\n      \"term\": \"checkerboard stimulation\"\n    },\n    {\n      \"term\": \"Freesurfer\"\n    },\n    {\n      \"term\": \"reference dataset\"\n    },\n    {\n      \"term\": \"Neuromag Vectorview\"\n    }\n  ],\n  \"related_identifiers\": [\n    {\n      \"identifier\": \"10.1016/j.neuroimage.2014.02.017\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"References\"\n    },\n    {\n      \"identifier\": \"10.3389/fnins.2013.00267\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"References\"\n    },\n    {\n      \"identifier\": \"https://github.com/nemarDatasets/on000248\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"https://nemar.org/dataexplorer/detail?dataset_id=on000248\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.21105/joss.01896\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsReferencedBy\"\n    },\n    {\n      \"identifier\": \"10.1038/sdata.2018.110\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsReferencedBy\"\n    },\n    {\n      \"identifier\": \"10.18112/openneuro.ds000248.v1.2.4\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDerivedFrom\"\n    }\n  ],\n  \"funding_references\": [\n    {\n      \"funder_name\": \"NIH\",\n      \"award_number\": \"5R01EB009048\"\n    },\n    {\n      \"funder_name\": \"NIH\",\n      \"award_number\": \"1R01EB009048\"\n    },\n    {\n      \"funder_name\": \"NIH\",\n      \"award_number\": \"R01EB006385\"\n    },\n    {\n      \"funder_name\": \"NIH\",\n      \"award_number\": \"1R01HD40712\"\n    },\n    {\n      \"funder_name\": \"NIH\",\n      \"award_number\": \"1R01NS44319\"\n    },\n    {\n      \"funder_name\": \"NIH\",\n      \"award_number\": \"2R01NS37462\"\n    },\n    {\n      \"funder_name\": \"NIH\",\n      \"award_number\": \"P41EB015896\"\n    },\n    {\n      \"funder_name\": \"ANR\",\n      \"award_number\": \"ANR-11-IDEX-0003-02\"\n    },\n    {\n      \"funder_name\": \"ERC\",\n      \"award_number\": \"ERC-StG-263584\"\n    },\n    {\n      \"funder_name\": \"ERC\",\n      \"award_number\": 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18:01:20","source":"openneuro","source_id":"ds000248","subject_count":2,"modalities":"anat,meg","age_min":null,"age_max":null,"file_size":2073279740,"total_files":1233,"tasks":"audiovisual,noise","metadata_columns_error":null,"staleness_warn_stage":null,"staleness_admin_notified_at":null,"authors":"Alexandre Gramfort, Matti S Hämäläinen","license":"CC0","readme":"[![DOI](https://img.shields.io/badge/DOI-10.82901%2Fnemar.on000248-blue)](https://doi.org/10.82901/nemar.on000248)\n\nMNE-Sample-Data\n---------------\n\nThe MNE software is accompanied by a sample data set. These data were acquired with the Neuromag Vectorview system at MGH/HMS/MIT Athinoula A. Martinos Center Biomedical Imaging. EEG data from a 60-channel electrode cap was acquired simultaneously with the MEG. The original MRI data set was acquired with a Siemens 1.5 T Sonata scanner using an MPRAGE sequence.\n\nIn the MEG/EEG experiment, checkerboard patterns were presented into the left and right visual field, interspersed by tones to the left or right ear. The interval between the stimuli was 750 ms. Occasionally a smiley face was presented at the center of the visual field. The subject was asked to press a key with the right index finger as soon as possible after the appearance of the face.\n\n\nFreesurfer derivatives\n----------------------\n\n- Calls from the command line:\n  - `recon-all -i sub-01/anat/sub-01_T1w.nii.gz -s sub-01 -all`\n  - `mne make_scalp_surfaces -s sub-01 --overwrite --force`\n  - `mne flash_bem -s sub-01 --overwrite`\n  - `mne watershed_bem -s sub-01 --overwrite`\n\nReferences\n----------\n\nA. Gramfort, M. Luessi, E. Larson, D. Engemann, D. Strohmeier, C. Brodbeck, L. Parkkonen, M. Hämäläinen, MNE software for processing MEG and EEG data, NeuroImage, Volume 86, 1 February 2014, Pages 446-460, ISSN 1053-8119\n\nA. Gramfort, M. Luessi, E. Larson, D. Engemann, D. Strohmeier, C. Brodbeck, R. Goj, M. Jas, T. Brooks, L. Parkkonen, M. Hämäläinen, MEG and EEG data analysis with MNE-Python, Frontiers in Neuroscience, Volume 7, 2013, ISSN 1662-453X\"\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. http://doi.org/10.1038/sdata.2018.110\n\n\n\nReferences\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":"1.4.0","sessions_count":1,"publish_date":null,"embedding_dirty":0,"license_tier":"public","zarr_status":"ready","zarr_converted_at":"2026-09-07 23:07:51","zarr_store_count":1,"zarr_index_etag":"11f3404b84583a3b6712b353a738536f","zarr_source_commit":"06b6e2a92db66ccb0d2bbf3997f7515542d45650","archive_status":"ready","archive_size":1225972518,"archive_retry_count":0,"records_status":"ready","archive_skip_reason":null,"zarr_errors":1,"zarr_failure_count":0,"zarr_deterministic":0,"zarr_failed_at":"2026-09-07 23:07:51","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":1803515070,"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":109.932,"recording_duration_min":109.932,"recording_duration_max":109.932,"recording_count":2,"recordings_unavailable":1,"recordings_measured":1,"channel_count_min":315,"channel_count_max":315,"sampling_frequency":null,"power_line_frequency":null,"eeg_reference":null,"placement_scheme":null,"sweep_stamps":"{\"enrichment_updated_at\":\"2026-06-20 18:12:30\",\"metadata_updated_at\":\"2026-06-20 18:12:32\",\"archive_checked_at\":\"2026-06-20 18:15:34\",\"zarr_checked_at\":null,\"records_checked_at\":\"2026-06-20 18:13:49\",\"citations_updated_at\":\"2026-09-08 03:00:53\",\"channel_montage_checked_at\":null,\"hed_checked_at\":\"2026-06-30 04:36:16\",\"data_checked_at\":\"2026-07-26 03:00:37\",\"availability_report_at\":\"2026-07-23 01:11:30\",\"signal_defaults_at\":\"2026-09-02 11:54:14\",\"recording_stats_at\":\"2026-09-08 03:00:50\"}","participants":2,"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":"1.93 GB","zarr_data_failures":{"count":0,"detail_ref":"zarr/index.json","pending":1,"discovered":2},"zarr_index_url":"https://zarr.nemar.org/on000248/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}}