{"success":true,"database":"eegdash","data":{"_id":"6953f4239276ef1ee07a32bb","dataset_id":"ds003061","associated_paper_doi":null,"authors":["Arnaud Delorme"],"bids_version":"v1.2.1","contact_info":["Arnaud Delorme","Dung Truong"],"contributing_labs":null,"data_processed":false,"dataset_doi":"doi:10.18112/openneuro.ds003061.v1.1.0","datatypes":["eeg"],"demographics":{"subjects_count":13,"ages":[44,32,28,35,49,27,33,35,31,24,58,27,28],"age_min":24,"age_max":58,"age_mean":34.69230769230769,"species":null,"sex_distribution":{"f":7,"m":6},"handedness_distribution":null},"experimental_modalities":null,"external_links":{"source_url":"https://openneuro.org/datasets/ds003061","osf_url":null,"github_url":null,"paper_url":null},"funding":[],"ingestion_fingerprint":"fac6a72fcfda45fe59dc099b33fa100e2234d985e77e4ad3d16b4c724917411e","license":"CC0","n_contributing_labs":null,"name":"EEG data from an auditory oddball task","readme":"Data collection took place at the Meditation Research Institute (MRI) in Rishikesh, India under the supervision of Arnaud Delorme, PhD. The project was approved by the local MRI Indian ethical committee and the ethical committee of the University of California San Diego (IRB project # 090731).\nParticipants sat either on a blanket on the floor or on a chair for both experimental periods depending on their personal preference. They were asked to keep their eyes closed and all lighting in the room was turned off during data collection. An intercom allowed communication between the experimental and the recording room.\nParticipants performed three identical sessions of 13 minutes each. 750 stimuli were presented with 70% of them being standard (500 Hz pure tone lasting 60 milliseconds), 15% being oddball (1000 Hz pure tone lasting 60 ms) and 15% being distractors (1000 Hz white noise lasting 60 ms). All sounds took 5 milliseconds to ramp up and 5 milliseconds to ramp down. Sounds were presented at a rate of 1 per second with a random gaussian jitter of standard deviation 25 ms. Participants were instructed to respond to oddball by pressing a key on a keypad that was resting on their lap.","recording_modality":["eeg"],"senior_author":"Arnaud Delorme","sessions":[],"size_bytes":2421802195,"source":"openneuro","study_design":null,"study_domain":null,"tasks":["P300"],"timestamps":{"digested_at":"2026-04-21T23:06:06.208886+00:00","dataset_created_at":"2020-08-08T07:05:52.572Z","dataset_modified_at":"2022-08-26T00:28:24.000Z"},"total_files":39,"storage":{"backend":"s3","base":"s3://openneuro.org/ds003061","raw_key":"dataset_description.json","dep_keys":["CHANGES","README","participants.json","participants.tsv","task-P300_events.json"]},"nemar_citation_count":4,"computed_title":"EEG data from an auditory oddball task","nchans_counts":[{"val":79,"count":39}],"sfreq_counts":[{"val":256.0,"count":39}],"stats_computed_at":"2026-04-21T23:17:03.699722+00:00","tags":{"pathology":["Healthy"],"modality":["Auditory"],"type":["Attention"],"confidence":{"pathology":0.7,"modality":0.9,"type":0.7},"reasoning":{"few_shot_analysis":"Most similar few-shot paradigms are the oddball datasets: (1) “EEG: Three-Stim Auditory Oddball and Rest in Acute and Chronic TBI” (auditory oddball; labeled Modality=Auditory, Type=Decision-making due to that study’s framing) and (2) “Cross-modal Oddball Task” (oddball with simultaneous auditory+visual pre-cues; labeled Modality=Multisensory). These examples guide the convention that (a) oddball tasks are labeled by the stimulus channel (auditory here), and (b) the cognitive Type for oddball is commonly attention/target-detection unless the study is explicitly framed around another construct (e.g., decision policy, clinical biomarkers).","metadata_analysis":"Key task/stimulus facts from metadata: (1) Oddball auditory tones: “750 stimuli were presented with 70% ... standard (500 Hz pure tone ...), 15% ... oddball (1000 Hz pure tone ... ) and 15% ... distractors (1000 Hz white noise ...)”. (2) Explicit response to oddball targets: “Participants were instructed to respond to oddball by pressing a key”. (3) Task label suggests classic P300 oddball: tasks=[\"P300\"]. Population facts: “Subjects: 13; ... Age range: 24-58” with no mention of any diagnosis or patient recruitment.","paper_abstract_analysis":"No useful paper information.","evidence_alignment_check":"Pathology: Metadata says no disorder is mentioned (e.g., only “Subjects: 13” and demographics). Few-shot pattern suggests Healthy when no clinical recruitment is stated. ALIGN.\nModality: Metadata says auditory stimuli (“500 Hz pure tone”, “1000 Hz pure tone”, “white noise”, “Sounds were presented...”). Few-shot oddball examples map modality to the stimulus channel (auditory vs multisensory). ALIGN.\nType: Metadata says classic target-detection oddball/P300 (“tasks: P300”; respond to oddball keypress). Few-shot oddball examples indicate oddball is typically categorized under attentional/target-detection processes unless explicitly framed otherwise. ALIGN (no explicit decision-making or learning framing in metadata).","decision_summary":"Top-2 candidates per category:\n\nPathology:\n1) Healthy — Evidence: no clinical descriptors; only demographics: “Subjects: 13; ... Age range: 24-58”.\n2) Unknown — Would apply if participant health status were unclear, but metadata does not suggest a clinical cohort.\nSelected: Healthy (ALIGN).\n\nModality:\n1) Auditory — Evidence: “standard (500 Hz pure tone)”, “oddball (1000 Hz pure tone)”, “white noise”, “Sounds were presented...”.\n2) Multisensory — Runner-up only if another stimulus channel were present; none stated.\nSelected: Auditory (ALIGN).\n\nType:\n1) Attention — Evidence: oddball/P300 target detection: “tasks: [\"P300\"]” and “respond to oddball by pressing a key”, plus distractor/target structure typical of attentional orienting.\n2) Perception — Also plausible because it involves discriminating tones (500 vs 1000 Hz), but the paradigm’s primary construct is target detection/oddball attention (P300).\nSelected: Attention (ALIGN). Confidence moderated because metadata does not explicitly say “attention”, it implies it via P300/oddball structure."}},"total_duration_s":29544.0,"tagger_meta":{"config_hash":"3557b68bca409f28","metadata_hash":"de62c571cffcb5bc","model":"openai/gpt-5.2","tagged_at":"2026-04-07T09:32:40.872789+00:00"},"canonical_name":null,"name_confidence":0.61,"name_meta":{"suggested_at":"2026-04-14T10:18:35.342Z","model":"openai/gpt-5.2 + openai/gpt-5.4-mini + deterministic_fallback"},"name_source":"canonical","author_year":"Delorme2020_auditory_oddball"}}