{"success":true,"database":"eegdash","data":{"_id":"6953f4249276ef1ee07a3343","dataset_id":"ds004370","associated_paper_doi":null,"authors":["van Blooijs D","Blok S","Huiskamp GJM","Leijten FSS"],"bids_version":"Brain Imaging Data Structure Specification v1.6.0","contact_info":["Epilab UMCU"],"contributing_labs":null,"data_processed":true,"dataset_doi":"doi:10.18112/openneuro.ds004370.v1.0.2","datatypes":["ieeg"],"demographics":{"subjects_count":7,"ages":[22,53,37,24,51,13,27],"age_min":13,"age_max":53,"age_mean":32.42857142857143,"species":null,"sex_distribution":{"m":4,"f":3},"handedness_distribution":null},"experimental_modalities":null,"external_links":{"source_url":"https://openneuro.org/datasets/ds004370","osf_url":null,"github_url":null,"paper_url":null},"funding":["EpilepsieNL #17-07","EpilepsieNL #19-12","NIH RO1MH122258"],"ingestion_fingerprint":"dfff0c8db8d5545d51f42b9afaddf46d973799f1c8f32bc905ff45d53513c3ed","license":"CC0","n_contributing_labs":null,"name":"PRIOS","readme":"# Dataset description\nThis dataset consists of 6 patients age 13-53 years old where Cortico-Cortical Evoked Potentials (CCEPs) were recorded with Electro-CorticoGraphy (ECoG) during single pulse electrical stimulation (SPES) in the awake patient for clinical routine (SPES-clinical) and under general propofol-anesthesia (SPES-propofol).\nFor a detailed description see:\n- The effect of propofol on local effective brain networks (submitted). D. van Blooijs, S. Blok, G.J.M. Huiskamp, P. van Eijsden, H.G.E. Meijer, F.S.S. Leijten\nThe study was approved by the Medical Ethical Committee from the UMC Utrecht, the Netherlands.\n## Contact\n- Dorien van Blooijs: D.vanBlooijs@umcutrecht.nl\n- Frans Leijten: F.S.S.leijten@umcutrecht.nl\n# Data organization\nThis data is organized according to the Brain Imaging Data Structure specification. A community-driven specification for organizing neurophysiology data along with its metadata. For more information on this data specification, see https://bids-specification.readthedocs.io/en/stable/\nEach patient has their own folder (e.g., `sub-PRIOS01` to `sub-PRIOS09`) which contains the iEEG recordings data for that patient, as well as the metadata needed to understand the raw data and event timing.\nData are logically grouped in the same BIDS session and stored across runs indicating the day and time point of recording during the monitoring period.\nWe use the optional run key-value pair to specify the day and the start time of the recording (e.g. run-021315, day 2 after implantation, which is day 1 of the monitoring period, at 13:15).\nThe task key-value pair in long-term iEEG recordings describes the patient's state during the recording of this file. The task label is “SPESclin“ when these files contain data collected during clinical single pulse electrical stimulation (SPES) and \"SPESprop\" when these files contain data collected during single pulse electrical stimulation (SPES) in the operating room.\nElectrode positions were estimated by running Freesurfer on the individual subject MRI scan. All shared electrode positions were converted to MNI305 space using the Freesurfer surface based non-linear transformation. We note that this surface based transformation distorts the dimensions of the grids, but maintains the gyral anatomy.\n# License\nThis dataset is made available under the Public Domain Dedication and License CC v1.0, whose full text can be found at\nhttps://creativecommons.org/publicdomain/zero/1.0/.\nWe hope that all users will follow the ODC Attribution/Share-Alike Community Norms (http://www.opendatacommons.org/norms/odc-by-sa/);\nin particular, while not legally required, we hope that all users of the data will acknowledge by citing the following in any publication.\nThe effect of propofol on local effective brain networks (submitted). D. van Blooijs, S. Blok, G.J.M. Huiskamp, P. van Eijsden, H.G.E. Meijer, F.S.S. Leijten\n# Code\nCode to analyses these data is available at: https://github.com/UMCU-EpiLAB/umcuEpi_PRIOS\n# Acknowledgements\nWe thank all patients for participating in this study.\n# Funding\nResearch reported in this publication was supported by EpilepsieNL under Award Number NEF17-07 (DvB) and NEF 19-12 (DvB, SB) and the National Institute of Mental Health of the National Institutes of Health under Award Number R01MH122258 (DvB, the content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health).","recording_modality":["ieeg"],"senior_author":"Leijten FSS","sessions":["1"],"size_bytes":29584367694,"source":"openneuro","study_design":null,"study_domain":null,"tasks":["SPESclin","SPESprop"],"timestamps":{"digested_at":"2026-04-22T12:26:31.400758+00:00","dataset_created_at":"2022-12-16T14:47:48.631Z","dataset_modified_at":"2023-12-16T15:16:44.000Z"},"total_files":15,"storage":{"backend":"s3","base":"s3://openneuro.org/ds004370","raw_key":"dataset_description.json","dep_keys":["CHANGES","README","participants.json","participants.tsv"]},"tagger_meta":{"config_hash":"4a051be509a0e3d0","metadata_hash":"982ad6764ef6f062","model":"openai/gpt-5.2","tagged_at":"2026-01-20T10:37:30.737418+00:00"},"tags":{"pathology":["Surgery"],"modality":["Anesthesia"],"type":["Clinical/Intervention"],"confidence":{"pathology":0.6,"modality":0.7,"type":0.8},"reasoning":{"few_shot_analysis":"Closest few-shot match by paradigm/context is the example titled \"Intraoperative EEG dataset during medianus-tibialis stimulation...\", which involves clinical intraoperative stimulation and was labeled Pathology=\"Surgery\" and Modality=\"Other\". The current dataset similarly involves clinical electrical stimulation in patients and an operating-room condition, so that convention guides selecting a surgical/clinical framing rather than a cognitive-task label. A secondary (weaker) analog is the pediatric epilepsy HFO dataset (Pathology=\"Epilepsy\"), but that example explicitly states epilepsy, whereas the current metadata does not.","metadata_analysis":"Key facts stated in the README include:\n1) Population/context: \"This dataset consists of 6 patients age 13-53 years old\" and recordings were done \"in the awake patient for clinical routine\".\n2) Intervention/anesthesia manipulation: CCEPs were recorded \"during single pulse electrical stimulation (SPES)\" both for \"SPES-clinical\" and \"under general propofol-anesthesia (SPES-propofol)\".\n3) Recording type consistent with invasive clinical setting: \"Cortico-Cortical Evoked Potentials (CCEPs) were recorded with Electro-CorticoGraphy (ECoG)\" and references to implantation/monitoring period: \"day 2 after implantation\".","paper_abstract_analysis":"No useful paper information.","evidence_alignment_check":"Pathology:\n- Metadata says: \"6 patients\" and describes \"clinical routine\" SPES and an operating-room anesthesia condition, but does NOT name a diagnosis (e.g., epilepsy).\n- Few-shot pattern suggests: the intraoperative stimulation example maps this kind of dataset to Pathology=\"Surgery\".\n- Alignment: PARTIAL (context aligns with surgery/clinical care, but diagnosis is unspecified). No conflict with an explicit diagnosis.\n\nModality:\n- Metadata says: \"single pulse electrical stimulation (SPES)\" and comparison \"under general propofol-anesthesia\".\n- Few-shot pattern suggests: intraoperative stimulation datasets often use Modality=\"Other\" (since stimulation is not a standard sensory channel), while anesthesia-focused datasets can justify Modality=\"Anesthesia\" when anesthesia state is the dominant manipulation.\n- Alignment: MIXED; both are plausible given metadata emphasis on propofol.\n\nType:\n- Metadata says: \"recorded ... for clinical routine\" and the dataset compares awake vs \"general propofol-anesthesia\" (an intervention/manipulation), not a cognitive task.\n- Few-shot pattern suggests: clinical cohorts/interventions and clinical physiology datasets map to Type=\"Clinical/Intervention\".\n- Alignment: ALIGNS (clinical/physiological intervention focus).","decision_summary":"Top-2 candidates per category:\n\nPathology:\n1) Surgery — Evidence: \"awake patient for clinical routine\"; \"under general propofol-anesthesia\"; implanted/invasive ECoG context (\"after implantation\"). Few-shot support: intraoperative stimulation example labeled Surgery.\n2) Epilepsy — Evidence: indirect only (ECoG implantation and SPES are common in epilepsy monitoring), but no explicit epilepsy mention.\nDecision: Surgery (metadata supports a surgical/clinical recruitment context more directly than a specific named disorder). Confidence limited because diagnosis is not explicitly stated.\n\nModality:\n1) Anesthesia — Evidence: explicit manipulation \"under general propofol-anesthesia\" and dataset contrasts SPES awake vs SPES under propofol.\n2) Other — Evidence: stimulus/input is direct cortical electrical stimulation (SPES), not a standard sensory modality; few-shot intraoperative stimulation example used Other.\nDecision: Anesthesia (propofol state is a primary experimental condition and explicitly emphasized). Confidence moderate because \"electrical stimulation\" also strongly supports \"Other\".\n\nType:\n1) Clinical/Intervention — Evidence: \"clinical routine\"; invasive ECoG CCEPs; comparison across propofol anesthesia (clinical intervention/manipulation).\n2) Other — Could be framed as systems neuroscience/network mapping without a patient-outcome focus, but still fundamentally intervention/clinical physiology.\nDecision: Clinical/Intervention (clear clinical/intervention nature)."}},"nemar_citation_count":1,"computed_title":"PRIOS","nchans_counts":[{"val":133,"count":7},{"val":68,"count":6},{"val":64,"count":2}],"sfreq_counts":[{"val":2048.0,"count":15}],"stats_computed_at":"2026-04-22T23:16:00.307521+00:00","total_duration_s":36726.21875,"canonical_name":null,"name_confidence":0.72,"name_meta":{"suggested_at":"2026-04-14T10:18:35.343Z","model":"openai/gpt-5.2 + openai/gpt-5.4-mini + deterministic_fallback"},"name_source":"canonical","author_year":"Blooijs2022_PRIOS"}}