{"success":true,"database":"eegdash","data":{"_id":"6953f4249276ef1ee07a343d","dataset_id":"ds006233","associated_paper_doi":null,"authors":["Ryuzaburo Kochi","Aya Kanno","Hiroshi Uda","Keisuke Hatano","Hidenori Endo","Michael Cools","Robert Rothermel","Aimee F. Luat","Eishi Asano"],"bids_version":"1.7.0","contact_info":["Ryuzaburo Kochi"],"contributing_labs":null,"data_processed":false,"dataset_doi":"doi:10.18112/openneuro.ds006233.v1.0.0","datatypes":["ieeg"],"demographics":{"subjects_count":108,"ages":[16,17,8,11,17,17,14,10,10,6,14,11,13,23,10,5,16,16,37,14,5,11,21,17,15,44,37,14,28,20,14,13,41,12,8,10,10,12,9,28,27,17,15,6,12,5,9,30,21,13,12,11,17,16,17,8,13,12,13,11,15,14,11,12,17,11,17,10,11,16,15,6,15,10,10,16,12,8,14,19,16,8,5,16,19,15,14,5,16,13,16,9,13,11,13,20,49,12,15,8,16,17,13,7,6,17,19,15],"age_min":5,"age_max":49,"age_mean":14.824074074074074,"species":null,"sex_distribution":{"f":52,"m":56},"handedness_distribution":{"a":1}},"experimental_modalities":null,"external_links":{"source_url":"https://openneuro.org/datasets/ds006233","osf_url":null,"github_url":null,"paper_url":null},"funding":["N/A"],"ingestion_fingerprint":"bc9146a36919ba570f060591c5d0cb3d9d838d65456a5d9558a4406558a82b68","license":"CC0","n_contributing_labs":null,"name":"Picture naming","readme":"This dataset, used in the analysis reported by Kochi et al., (2025), contains intracranial EEG recordings from 108 individuals who performed an picture‑naming task. Electrode coordinates are provided in MNI‑305 space.\nEach EDF file is tagged for the auditory naming task with the following event codes:\n401 – stimulus onset\n501 – response onset\nReference:\nRyuzaburo Kochi, Aya Kanno, Hiroshi Uda, Keisuke Hatano, Hidenori Endo, Michael Cools, Robert Rothermel, Aimee F. Luat, Eishi Asano. Naming is Shaped by Early Facilitative and Late Compensatory Neural Interactions: An Intracranial Study of 125 Patients","recording_modality":["ieeg"],"senior_author":"Eishi Asano","sessions":["1","2","3","4","5"],"size_bytes":18579703387,"source":"openneuro","study_design":null,"study_domain":null,"tasks":["picture"],"timestamps":{"digested_at":"2026-04-22T12:29:13.020292+00:00","dataset_created_at":"2025-05-13T04:33:20.242Z","dataset_modified_at":"2025-05-19T12:00:57.000Z"},"total_files":347,"storage":{"backend":"s3","base":"s3://openneuro.org/ds006233","raw_key":"dataset_description.json","dep_keys":["CHANGES","README","participants.json","participants.tsv"]},"tagger_meta":{"config_hash":"4a051be509a0e3d0","metadata_hash":"a38e9da441e1c1e1","model":"openai/gpt-5.2","tagged_at":"2026-01-20T18:52:21.752027+00:00"},"tags":{"pathology":["Surgery"],"modality":["Visual"],"type":["Other"],"confidence":{"pathology":0.6,"modality":0.6,"type":0.6},"reasoning":{"few_shot_analysis":"Most similar few-shot example by recording context is the intraoperative SEP dataset (\"Intraoperative EEG dataset during medianus-tibialis stimulation...\") which is labeled with Pathology=\"Surgery\" because participants are recruited in a surgical/clinical invasive context. This guides treating invasive intracranial EEG as a surgery/clinical-implant cohort rather than a normative \"Healthy\" cohort.\nFor Modality/Type, the schizophrenia example (\"visual discrimination task\" → Modality=\"Visual\", Type=\"Perception\") guides mapping explicit picture/dot stimuli to a stimulus-driven modality label (Visual) and treating task purpose separately from response mechanics. However, picture naming is primarily a language production/lexical access paradigm, which is not an allowed Type label, so conventions suggest falling back to Type=\"Other\" when the cognitive construct is outside the ontology.","metadata_analysis":"Key metadata facts from the dataset README:\n1) Population/setting: \"contains intracranial EEG recordings from 108 individuals\".\n2) Task: \"performed an picture‑naming task\".\n3) Event structure: \"Each EDF file is tagged for the auditory naming task with the following event codes: 401 – stimulus onset; 501 – response onset\".\n4) Clinical hint (non-diagnostic): cited paper title includes \"An Intracranial Study of 125 Patients\" (patients, but diagnosis not specified).","paper_abstract_analysis":"No useful paper information (only a citation string/title is provided; no abstract content to clarify diagnosis or whether stimuli are visual vs auditory).","evidence_alignment_check":"Pathology:\n- Metadata says: \"intracranial EEG recordings\" and references \"125 Patients\" (no explicit diagnosis).\n- Few-shot pattern suggests: invasive/intraoperative clinical recordings are labeled as \"Surgery\" (SEP intraoperative example).\n- Alignment: PARTIAL. Both indicate a clinical invasive context, but metadata does not explicitly say surgery/presurgical evaluation.\n- Resolution: choose Surgery as the best-supported allowed pathology given the invasive intracranial recording context; avoid Epilepsy because it is not explicitly stated.\n\nModality:\n- Metadata says: \"picture‑naming task\" (implies visual pictures) but also \"auditory naming task\" (implies auditory stimuli).\n- Few-shot pattern suggests: modality should follow stimulus channel (e.g., visual discrimination → Visual).\n- Alignment: CONFLICT/AMBIGUOUS due to mixed wording (picture vs auditory naming).\n- Resolution: choose Visual because \"picture-naming\" is the most concrete stimulus description; keep confidence moderate.\n\nType:\n- Metadata says: \"picture‑naming task\" with \"stimulus onset\" and \"response onset\"; no explicit construct label (memory/attention/etc.).\n- Few-shot pattern suggests: when the construct is outside the provided ontology (e.g., language), use \"Other\".\n- Alignment: ALIGN (naming/language is not a provided Type label).\n- Resolution: Type=\"Other\" (language production/lexical retrieval not directly represented among allowed Types).","decision_summary":"Top-2 candidates and final choices:\n\nPathology:\n1) Surgery (FINAL) — Evidence: \"intracranial EEG recordings\" (invasive clinical implantation context) + citation refers to \"Patients\"; matches few-shot convention where invasive surgical/clinical recordings map to Surgery.\n2) Epilepsy — Plausible because many intracranial EEG cohorts are epilepsy patients, but NOT stated anywhere in the provided metadata.\nConfidence basis: inference from invasive intracranial setting only (no explicit diagnosis) → moderate.\n\nModality:\n1) Visual (FINAL) — Evidence: \"picture‑naming task\" strongly implies visual picture stimuli.\n2) Auditory — Evidence: \"tagged for the auditory naming task\" suggests an auditory stimulus condition or labeling inconsistency.\nConfidence basis: explicit mention of pictures but conflicting mention of auditory naming → moderate.\n\nType:\n1) Other (FINAL) — Evidence: task is picture naming (language/lexical access), which is not an allowed Type label; few-shot conventions support using Other when construct is outside ontology.\n2) Memory — Plausible because naming involves lexical retrieval, but metadata does not frame it as a memory study.\nConfidence basis: limited construct description; clear that it is not resting/motor/sleep/etc. but exact cognitive label not available → moderate."}},"computed_title":"Picture naming","nchans_counts":[{"val":128,"count":245},{"val":138,"count":19},{"val":136,"count":19},{"val":140,"count":8},{"val":110,"count":6},{"val":112,"count":6},{"val":150,"count":5},{"val":156,"count":5},{"val":130,"count":4},{"val":164,"count":4},{"val":148,"count":4},{"val":134,"count":4},{"val":152,"count":3},{"val":144,"count":3},{"val":84,"count":3},{"val":96,"count":3},{"val":118,"count":3},{"val":64,"count":2},{"val":58,"count":1}],"sfreq_counts":[{"val":1000.0,"count":347}],"stats_computed_at":"2026-04-22T23:16:00.311412+00:00","total_duration_s":null,"author_year":"Kochi2025_Picture_naming","canonical_name":null}}