{"success":true,"database":"eegdash","data":{"_id":"6953f4249276ef1ee07a3410","dataset_id":"ds005691","associated_paper_doi":null,"authors":["Max-Philipp Stenner","Cindy Marquez Nossa","Tino Zaehle","Elena Azanon","Hans-Jochen Heinze","Matthias Deliano","Lars Buentjen"],"bids_version":"1.6","contact_info":["Max-Philipp Stenner"],"contributing_labs":null,"data_processed":false,"dataset_doi":"doi:10.18112/openneuro.ds005691.v1.0.0","datatypes":["ieeg"],"demographics":{"subjects_count":8,"ages":[51,33,34,58,49,40,64,45],"age_min":33,"age_max":64,"age_mean":46.75,"species":null,"sex_distribution":{"f":7,"m":1},"handedness_distribution":null},"experimental_modalities":null,"external_links":{"source_url":"https://openneuro.org/datasets/ds005691","osf_url":null,"github_url":null,"paper_url":null},"funding":["M.-P.S. was supported by a VolkswagenStiftung Freigeist Fellowship project-ID 92977.","M.-P.S. and E.A. received funding from a Deutsche Forschungsgemeinschaft Sonderforschungsbereich SFB-1436 TPC03 project-ID 425899996."],"ingestion_fingerprint":"11395401ea308fe0b875603447c41c51ed75def3eddd9d1b5597ea2eaed5030f","license":"CC0","n_contributing_labs":null,"name":"SpinalExpect_Invasive","readme":"Contact person:\nMax-Philipp Stenner, email: max-philipp.stenner@med.ovgu.de or max-philipp.stenner@lin-magdeburg.de, ORCID: 0000-0002-3694-1887\nBrief overview of the tasks in the experiment:\nThe goal was to reveal whether temporal expectation influences initial sensory processing in the human spinal cord. In each trial, subjects (included n=8, patients with neuropathic pain following epidural electrode implantation into the cervical spinal canal, dorsal to the spinal cord) received at least one electric median nerve stimulation on the left wrist. Their task was to silently count in how many (rare) trials in each block (~5 min) there were two median nerve stimuli in rapid succession (80 ms ISI), and to report that number at the end of each block. In each trial, the median nerve stimulatino was preceded by an auditory cue. In alternating blocks, the time interval between the auditory cue and the (first) median nerve stimulation was either fixed at 1100 ms, or varied randomly (uniform distribution) between 100 and 2100 ms.\nMontage:\nLead placement alongside the cervical spinal cord varied across patients. In each patient, we recorded from eight epidural contacts (3 mm length, 1 mm spacing) placed alongside the dorsal cervical spinal cord. The fourth contact (counted from the most caudal contact) served as a reference. The ground was an extra wire twisted around the wire for the sixth contact (counted from the most caudal contact).\nEvents:\nThere are three events of interest. \"S1\" is a keypress of the experimenter, to advance the task upon breaks. \"S1\" can therefore be used to identify the start of each new block. \"S70\" corresponds to the auditory cue. \"S130\" corresponds to median nerve stimulation. \"S99\" is a \"placeholder\" that corresponds to no stimulus at all. The placeholder was used to enable \"double stimuli\", i.e., a rapid succession of two median nerve stimulations with an ISI of 80 ms. Most trials follow a sequence of \"S70\" - \"S130\" - \"S99\". Deviant trials have \"S70\" - \"S130\" - \"S130\".","recording_modality":["ieeg"],"senior_author":"Lars Buentjen","sessions":[],"size_bytes":758159062,"source":"openneuro","study_design":null,"study_domain":null,"tasks":["countingDeviants"],"timestamps":{"digested_at":"2026-04-22T12:28:41.503026+00:00","dataset_created_at":"2024-12-03T08:55:55.749Z","dataset_modified_at":"2024-12-03T09:21:25.000Z"},"total_files":8,"storage":{"backend":"s3","base":"s3://openneuro.org/ds005691","raw_key":"dataset_description.json","dep_keys":["CHANGES","README","participants.tsv"]},"tagger_meta":{"config_hash":"4a051be509a0e3d0","metadata_hash":"24041ba8488f6c94","model":"openai/gpt-5.2","tagged_at":"2026-01-20T18:35:44.986152+00:00"},"tags":{"pathology":["Other"],"modality":["Multisensory"],"type":["Attention"],"confidence":{"pathology":0.7,"modality":0.8,"type":0.7},"reasoning":{"few_shot_analysis":"Most similar conventions from the few-shot set:\n- The example titled \"Intraoperative EEG dataset during medianus-tibialis stimulation...\" (labeled Pathology=\"Surgery\") shows that median nerve stimulation/SEP-style paradigms are treated as stimulus-driven somatosensory experiments, often in surgical contexts.\n- The \"Cross-modal Oddball Task\" (labeled Modality=\"Multisensory\") demonstrates the convention that when two different sensory channels are systematically used as stimuli within trials (e.g., auditory + another modality), the Modality label is \"Multisensory\".\nThese guide (i) considering this dataset as primarily somatosensory stimulation with an additional auditory cue (→ Multisensory), and (ii) not forcing \"Surgery\" unless surgery/intraoperative status is the recruiting diagnosis (metadata here instead emphasizes neuropathic pain).","metadata_analysis":"Key quoted metadata facts:\n1) Clinical population: \"patients with neuropathic pain following epidural electrode implantation into the cervical spinal canal\"\n2) Stimuli: \"received at least one electric median nerve stimulation on the left wrist\" and \"the median nerve stimulatino was preceded by an auditory cue\"\n3) Cognitive aim/task demand: \"reveal whether temporal expectation influences initial sensory processing\" and \"Their task was to silently count in how many (rare) trials... there were two median nerve stimuli... and to report that number\"","paper_abstract_analysis":"No useful paper information.","evidence_alignment_check":"Pathology:\n- Metadata says: \"patients with neuropathic pain\".\n- Few-shot pattern suggests: median-nerve/SEP datasets can be in \"Surgery\" contexts (intraoperative SEP example).\n- Alignment: PARTIAL CONFLICT (population is pain patients rather than explicitly intraoperative/surgical cohort).\n- Resolution: Metadata FACT wins (recruitment condition is neuropathic pain) → Pathology=\"Other\".\n\nModality:\n- Metadata says: \"electric median nerve stimulation\" plus \"preceded by an auditory cue\".\n- Few-shot pattern suggests: two stimulus channels used together → \"Multisensory\" (cross-modal oddball example).\n- Alignment: ALIGN → Modality=\"Multisensory\".\n\nType:\n- Metadata says: \"temporal expectation influences initial sensory processing\" and participants perform a rare-target counting task.\n- Few-shot pattern suggests: paradigms manipulating expectation/rare targets/counting commonly map to attention-related constructs (oddball/expectancy-style conventions).\n- Alignment: ALIGN → Type=\"Attention\".","decision_summary":"Top-2 candidates and decision per category:\n\nPathology:\n- Candidate 1: Other\n  Evidence: \"patients with neuropathic pain following epidural electrode implantation\"\n- Candidate 2: Surgery\n  Evidence: epidural electrode implantation; similarity to SEP intraoperative example in few-shot.\nDecision: Other (metadata explicitly recruits neuropathic pain patients; implantation is a procedure context, not the diagnosis label).\nConfidence rationale: 1 strong explicit quote naming the clinical population; runner-up plausible but weaker.\n\nModality:\n- Candidate 1: Multisensory\n  Evidence: \"preceded by an auditory cue\" + \"electric median nerve stimulation\"\n- Candidate 2: Tactile\n  Evidence: primary probe is somatosensory/median nerve stimulation.\nDecision: Multisensory (both auditory and somatosensory stimuli are integral to each trial).\nConfidence rationale: 2 explicit stimulus-channel quotes; clear few-shot convention match to multisensory labeling.\n\nType:\n- Candidate 1: Attention\n  Evidence: \"temporal expectation\" manipulation; rare-event counting task.\n- Candidate 2: Perception\n  Evidence: focus on \"initial sensory processing\" in response to nerve stimulation.\nDecision: Attention (core manipulation is temporal expectation/attentional set, with counting of rare double-stim trials).\nConfidence rationale: 1–2 quotes supporting attention/expectation, but perception is a reasonable runner-up."}},"nemar_citation_count":0,"computed_title":"SpinalExpect_Invasive","nchans_counts":[{"val":7,"count":7},{"val":8,"count":1}],"sfreq_counts":[{"val":2500.0,"count":8}],"stats_computed_at":"2026-04-22T23:16:00.310805+00:00","total_duration_s":21308.82,"author_year":"Stenner2024_SpinalExpect","canonical_name":null}}