{"dataset":{"id":"61174","dataset_id":"on006519","name":"Dataset of intracranial EEG during cortical stimulations evoking negative motor responses","description":"This dataset comprises intracranial EEG (iEEG) recordings from 23 patients undergoing stereo-EEG presurgical evaluation for drug-resistant epilepsy, capturing 41 instances of high-frequency cortical stimulation that evoked negative motor responses. Each recording includes pre- and post-stimulation epochs used for connectivity analysis, along with detailed stimulation parameters. The dataset supports research into the cortical networks underlying negative motor phenomena elicited by direct electrical stimulation.","owner_user_id":15,"status":"active","github_repo":"nemarDatasets/on006519","concept_doi":"10.82901/nemar.on006519","latest_version_doi":"10.82901/nemar.on006519.v1.0.0","created_at":"2026-06-29 03:01:46","updated_at":"2026-08-19 00:34:50","zenodo_concept_id":null,"is_sandbox":0,"visibility":"public","ezid_status":"public","enrichment_json":"{\n  \"version\": \"2.0\",\n  \"pipeline_stage\": \"validated\",\n  \"title\": \"Dataset of intracranial EEG during cortical stimulations evoking negative motor responses\",\n  \"description\": \"This dataset comprises intracranial EEG (iEEG) recordings from 23 patients undergoing stereo-EEG presurgical evaluation for drug-resistant epilepsy, capturing 41 instances of high-frequency cortical stimulation that evoked negative motor responses. Each recording includes pre- and post-stimulation epochs used for connectivity analysis, along with detailed stimulation parameters. The dataset supports research into the cortical networks underlying negative motor phenomena elicited by direct electrical stimulation.\",\n  \"methods_description\": \"iEEG data were recorded around 41 high-frequency bipolar cortical stimulations (biphasic pulses, 1 ms duration, 43.2 Hz alternating or 50 Hz non-alternating, 0.25-3 mA, up to 5 s) that evoked negative motor responses. Each recording spans 24 seconds, including 9-10 seconds pre- and post-stimulation, with two 5-second epochs (pre- and post-stimulation) used for baseline and connectivity analysis. Stimulation contact pairs, current intensity, and evoked effects are documented in the events files.\",\n  \"license\": \"CC0\",\n  \"dataset_type\": \"raw\",\n  \"authors\": {\n    \"Andrei Barborica\": {},\n    \"Cristina Ghita\": {},\n    \"Laurentiu Tofan\": {},\n    \"Irina Oane\": {},\n    \"Ioana Mindruta\": {}\n  },\n  \"keywords\": [\n    {\n      \"term\": \"intracranial EEG\"\n    },\n    {\n      \"term\": \"cortical stimulation\"\n    },\n    {\n      \"term\": \"negative motor response\"\n    },\n    {\n      \"term\": \"stereo-EEG\"\n    },\n    {\n      \"term\": \"Epilepsy\",\n      \"subject_scheme\": \"MeSH\",\n      \"value_uri\": \"http://id.nlm.nih.gov/mesh/D004827\"\n    },\n    {\n      \"term\": \"connectivity analysis\"\n    }\n  ],\n  \"related_identifiers\": [\n    {\n      \"identifier\": \"10.18112/openneuro.ds006519.v1.0.0\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDerivedFrom\"\n    },\n    {\n      \"identifier\": \"https://github.com/nemarDatasets/on006519\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"https://nemar.org/dataset/on006519\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    }\n  ],\n  \"funding_references\": [\n    {\n      \"funder_name\": \"Romanian UEFISCDI\",\n      \"award_number\": \"PN-III-P4-ID-PCE-2020-0935\"\n    }\n  ],\n  \"resource_type_general\": \"Dataset\",\n  \"resource_type_specific\": \"Structural MRI Dataset\",\n  \"modalities\": [\n    \"anat\",\n    \"ieeg\"\n  ],\n  \"sizes\": [\n    \"1.0 GB (123 files)\"\n  ],\n  \"formats\": [\n    \".eeg\",\n    \".json\",\n    \".md\",\n    \".nii\",\n    \".tsv\",\n    \".vhdr\",\n    \".vmrk\",\n    \".yml\"\n  ],\n  \"source_hash\": \"90466683d72656c7e8d827b175e272df4ed85bd81987590fbd2eba03d227ee52\"\n}","last_activity_at":"2026-06-29 03:01:46","source":"openneuro","source_id":"ds006519","subject_count":21,"modalities":"anat,ieeg","age_min":9,"age_max":54,"file_size":1118744404,"total_files":400,"tasks":"dcs","metadata_columns_error":null,"staleness_warn_stage":null,"staleness_admin_notified_at":null,"authors":"Andrei Barborica, Cristina Ghita, Laurentiu Tofan, Irina Oane, Ioana Mindruta","license":"CC0","readme":"[![DOI](https://img.shields.io/badge/DOI-10.82901%2Fnemar.on006519-blue)](https://doi.org/10.82901/nemar.on006519)\n\nIn this dataset we included iEEG recordings of responses to 41 intracranial high frequency stimulations evoking \nnegative motor responses, in 23 patients undergoing stereo-EEG presurgical evaluation for drug-resistant epilepsy.\n\nThe dataset contains 24 seconds of iEEG data around each stimulation, 9-10 seconds before the start of the stimulation, \nup to 5 seconds of intracranial stimulation and 9-10 seconds after the end of the stimulation. Each recording contains\ntwo 5 second epochs, pre-stimulation (used as baseline in the connectivity analysis) and post-stimulation.\n\nWe have used high-frequency bipolar stimulations of different areas of the brain, using biphasic pulses having a duration \nof 1 ms, at a frequency of 43.2 Hz (alternating polarity) or 50 Hz (non-alternating), current intensity between 0.25 to 3 mA, \nfor up to 5 s. \n\nThe contact pair on which stimulation is applied, the current intensity level and evoked effect are specified \nin the events tsv. \n\nNot all patients in which stimulations evoked negative motor responses met the inclusion criteria for network analysis \nthat requires running the freesurfer pipeline, for instance patients having prior resections, therefore there are subjects\nthat do not contain anatomy data and are not included in the dataset. However, they are included in the numbering of patients \nto match the table in the companion manuscript.\n\nContact: andrei.barborica@fizica.unibuc.ro\n","bids_version":"1.9.0","sessions_count":5,"publish_date":null,"embedding_dirty":0,"license_tier":"public","zarr_status":"ready","zarr_converted_at":"2026-08-24 08:20:42","zarr_store_count":35,"zarr_index_etag":"919e2a231f1a880cdd9f42e54fe3adaf","zarr_source_commit":"f1be25a732972e32a3d6509886258ab9a7449ff8","archive_status":"ready","archive_size":580586549,"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":1,"num_datapaper_citations":0,"n_channels":null,"electrode_system":null,"has_hed":0,"hed_version":null,"is_exemplar":0,"bytes_present":1004285215,"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":967,"recording_duration_min":20,"recording_duration_max":32,"recording_count":35,"recordings_unavailable":0,"recordings_measured":35,"channel_count_min":25,"channel_count_max":176,"sampling_frequency":null,"power_line_frequency":null,"eeg_reference":null,"placement_scheme":null,"sweep_stamps":"{\"enrichment_updated_at\":\"2026-08-19 00:34:39\",\"metadata_updated_at\":\"2026-08-19 00:34:49\",\"archive_checked_at\":\"2026-06-29 03:10:08\",\"zarr_checked_at\":null,\"records_checked_at\":\"2026-06-29 03:09:47\",\"citations_updated_at\":\"2026-09-09 03:00:18\",\"channel_montage_checked_at\":null,\"hed_checked_at\":\"2026-06-30 05:35:14\",\"data_checked_at\":\"2026-08-28 03:00:29\",\"availability_report_at\":\"2026-07-23 01:29:30\",\"recording_stats_at\":\"2026-09-02 11:33:42\",\"signal_defaults_at\":\"2026-09-02 12:46:41\"}","participants":21,"num_citations":1,"latest_version":"v1.0.0","zarr_verify_status":null,"zarr_verified_at":null,"owner_username":"nemarAdmin","owner_github":"nemarAdmin","file_size_formatted":"1.04 GB","zarr_data_failures":null,"zarr_index_url":"https://zarr.nemar.org/on006519/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}}