{"success":true,"database":"eegdash","data":{"_id":"6953f4249276ef1ee07a3455","dataset_id":"ds006519","associated_paper_doi":null,"authors":["Andrei Barborica","Cristina Ghita","Laurentiu Tofan","Irina Oane","Ioana Mindruta"],"bids_version":"1.9.0","contact_info":["Andrei Barborica"],"contributing_labs":null,"data_processed":false,"dataset_doi":"doi:10.18112/openneuro.ds006519.v1.0.0","datatypes":["ieeg"],"demographics":{"subjects_count":21,"ages":[35,24,33,11,9,28,36,29,28,42,41,20,27,26,24,18,20,26,29,54,29,35,42],"age_min":9,"age_max":54,"age_mean":28.956521739130434,"species":null,"sex_distribution":{"f":8,"m":15},"handedness_distribution":null},"experimental_modalities":null,"external_links":{"source_url":"https://openneuro.org/datasets/ds006519","osf_url":null,"github_url":null,"paper_url":null},"funding":["Romanian UEFISCDI PN-III-P4-ID-PCE-2020-0935"],"ingestion_fingerprint":"cc1ed1fac907ef651308a269c8a17a21e5290b67be957f279c02b6c0ce24a330","license":"CC0","n_contributing_labs":null,"name":"Dataset of intracranial EEG during cortical stimulations evoking negative motor responses","readme":"In 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.\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.\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.\nThe contact pair on which stimulation is applied, the current intensity level and evoked effect are specified\nin the events tsv.\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.\nContact: andrei.barborica@fizica.unibuc.ro","recording_modality":["ieeg"],"senior_author":"Ioana Mindruta","sessions":["01","02","03","04","05"],"size_bytes":1118742821,"source":"openneuro","study_design":null,"study_domain":null,"tasks":["dcs"],"timestamps":{"digested_at":"2026-04-22T12:29:31.428679+00:00","dataset_created_at":"2025-07-31T09:11:55.018Z","dataset_modified_at":"2025-07-31T09:16:09.000Z"},"total_files":35,"storage":{"backend":"s3","base":"s3://openneuro.org/ds006519","raw_key":"dataset_description.json","dep_keys":["CHANGES","README","participants.json","participants.tsv"]},"tagger_meta":{"config_hash":"4a051be509a0e3d0","metadata_hash":"4063a5f59bdab247","model":"openai/gpt-5.2","tagged_at":"2026-01-20T19:02:00.080286+00:00"},"tags":{"pathology":["Epilepsy"],"modality":["Other"],"type":["Clinical/Intervention"],"confidence":{"pathology":0.9,"modality":0.8,"type":0.8},"reasoning":{"few_shot_analysis":"Most similar few-shot conventions: (1) The pediatric epilepsy HFO dataset is labeled Pathology=Epilepsy and Type=Clinical/Intervention because it is a clinically recruited epilepsy cohort and the purpose is biomarker/mapping oriented rather than a basic cognitive task. This guides mapping epilepsy presurgical iEEG to Epilepsy + Clinical/Intervention. (2) The intraoperative SEP stimulation dataset is labeled Modality=Other (non-classical sensory stimulation context) and Pathology=Surgery; it supports using Modality=Other when the input is direct stimulation rather than auditory/visual/tactile stimuli.","metadata_analysis":"Key quoted facts from the dataset README: (a) Population/condition: \"in 23 patients undergoing stereo-EEG presurgical evaluation for drug-resistant epilepsy.\" (b) Stimulation paradigm: \"iEEG recordings of responses to 41 intracranial high frequency stimulations\" and \"We have used high-frequency bipolar stimulations of different areas of the brain\". (c) Clinical mapping context: \"presurgical evaluation\" and the note about inclusion criteria for analysis: \"Not all patients ... met the inclusion criteria for network analysis\"; also \"for instance patients having prior resections\".","paper_abstract_analysis":"No useful paper information.","evidence_alignment_check":"Pathology: Metadata says \"patients ... for drug-resistant epilepsy\" (Epilepsy). Few-shot pattern suggests epilepsy cohorts should be labeled Epilepsy (see pediatric epilepsy example). ALIGN.\nModality: Metadata says the input is \"intracranial high frequency stimulations\" / \"bipolar stimulations\" (direct brain stimulation; not auditory/visual/tactile/rest). Few-shot pattern suggests using Modality=Other for stimulation-based paradigms that are not standard sensory channels (see intraoperative SEP example). ALIGN.\nType: Metadata says this is \"stereo-EEG presurgical evaluation\" and analyzes stimulation-evoked effects (clinical functional mapping / network analysis). Few-shot pattern suggests clinically oriented presurgical/biomarker datasets should be Type=Clinical/Intervention (see epilepsy HFO example). ALIGN.","decision_summary":"Top-2 candidates per category:\n- Pathology: (1) Epilepsy vs (2) Surgery. Evidence for Epilepsy: \"presurgical evaluation for drug-resistant epilepsy\"; \"patients ... epilepsy\". Evidence for Surgery: presurgical context could imply surgery. Head-to-head: recruitment is explicitly epilepsy, so Epilepsy wins. Alignment: aligned with few-shot epilepsy convention.\n- Modality: (1) Other vs (2) Motor. Evidence for Other: \"intracranial high frequency stimulations\"; \"bipolar stimulations\" (direct stimulation, not a sensory modality). Evidence for Motor: stimulations evoke \"negative motor responses\". Head-to-head: modality is defined by stimulus/input channel; here it is intracranial electrical stimulation, so Other wins. Alignment: aligned with few-shot stimulation convention.\n- Type: (1) Clinical/Intervention vs (2) Motor. Evidence for Clinical/Intervention: \"stereo-EEG presurgical evaluation\"; stimulation mapping and \"connectivity analysis\" / \"network analysis\" context. Evidence for Motor: focus on \"negative motor responses\". Head-to-head: primary purpose appears clinical functional mapping in epilepsy presurgical evaluation rather than studying motor control in healthy cognition, so Clinical/Intervention wins. Alignment: aligned with few-shot epilepsy clinical/biomarker convention.\nConfidence justification: Pathology has multiple explicit epilepsy mentions (3+), Modality has 2+ explicit stimulation mentions plus strong few-shot analog, Type has 2+ explicit presurgical/analysis mentions plus epilepsy clinical analog."}},"computed_title":"Dataset of intracranial EEG during cortical stimulations evoking negative motor responses","nchans_counts":[{"val":33,"count":5},{"val":35,"count":5},{"val":37,"count":4},{"val":31,"count":2},{"val":52,"count":2},{"val":32,"count":2},{"val":41,"count":2},{"val":34,"count":1},{"val":89,"count":1},{"val":43,"count":1},{"val":101,"count":1},{"val":63,"count":1},{"val":150,"count":1},{"val":40,"count":1},{"val":61,"count":1},{"val":176,"count":1},{"val":56,"count":1},{"val":47,"count":1},{"val":25,"count":1},{"val":69,"count":1}],"sfreq_counts":[{"val":4096.0,"count":31},{"val":512.0,"count":4}],"stats_computed_at":"2026-04-22T23:16:00.311699+00:00","total_duration_s":967.0,"author_year":"Barborica2025","canonical_name":null}}