{"success":true,"database":"eegdash","data":{"_id":"6953f4249276ef1ee07a330e","dataset_id":"ds004033","associated_paper_doi":null,"authors":["Joanna Scanlon","Nadine Jacobsen","Marike Maack","Stefan Debener"],"bids_version":"v2.0","contact_info":["Joanna Scanlon"],"contributing_labs":null,"data_processed":false,"dataset_doi":"doi:10.18112/openneuro.ds004033.v1.0.0","datatypes":["eeg"],"demographics":{"subjects_count":18,"ages":[28,25,27,22,23,25,25,24,25,24,23,20,26,27,23,22,21,22],"age_min":20,"age_max":28,"age_mean":24.0,"species":null,"sex_distribution":{"m":10,"f":8},"handedness_distribution":{"r":18}},"experimental_modalities":null,"external_links":{"source_url":"https://openneuro.org/datasets/ds004033","osf_url":null,"github_url":null,"paper_url":null},"funding":[],"ingestion_fingerprint":"40b38271fbfac92774cec5e39001ea5e4b80b906283cad1242b52162c44989cf","license":"CC0","n_contributing_labs":null,"name":"Electrode walking study","readme":"The electrode and synchronized walking study: Participants performed 3 tasks outside:\neyes open/eyes close, standing, walking alone & walking with experimenter oddball task, and 3 walking with experimenter tasks\nOnly part of the second task (standing and walking oddball) was used for the first paper.\nEach of 18 participants performed the task using both active (session 1) and passive (session 2) electrodes, in counterbalanced order\nTask 1: Eyes open / Eyes closed; 1. Participant stands facing a wall with eyes open (or closed) for 1 min.\nThen 1 min of eyes closed (or open). This is counterbalanced and repeated. 2X each type. Task 2: Oddball task: Standing / Walking alone /\nWalking together. Participants performed an oddball task in which they listened to the tones through headphones and silently counted the deviant tones.\nThe tones were 800 and 1000 Hz, with the standard/target status counterbalanced across participants. During the walking conditions,\nparticipants walked clockwise around an outdoor (roofed) basketball arena, following pylons. Each block was about 5-6 minutes.\nBlocks were counterbalanced and repeated 2X each. Task 3: Walking together: Natural / Control / Synchronize 3. Participants walked with\nthe experimenter for 6 minutes in 3 conditions. The experimenter listened to a metronome while walking, and synchronized their steps with it\n(also true during walking together oddball task). During Natural walking, participant is just asked to walk with the experimenter, with no other\ninstruction. In Control, participant is `blinded` using `side-blinders` which block their view of the experimenter. In Synchronize, participants\ntry to synchronize their steps with the experimenter. All walking & oddball conditions started with a countdown (this has a specific trigger for oddball conds,\nnot for task 3 conds. It plays during the first ~ 12 seconds of the 6 min trial\n- Joanna Scanlon (Feb 2022)","recording_modality":["eeg"],"senior_author":"Stefan Debener","sessions":["01","02"],"size_bytes":21270391132,"source":"openneuro","study_design":null,"study_domain":null,"tasks":["act","pas"],"timestamps":{"digested_at":"2026-04-22T12:25:58.075430+00:00","dataset_created_at":"2022-02-18T11:39:43.725Z","dataset_modified_at":"2022-02-09T22:23:32.000Z"},"total_files":36,"storage":{"backend":"s3","base":"s3://openneuro.org/ds004033","raw_key":"dataset_description.json","dep_keys":["CHANGES","README","participants.json","participants.tsv"]},"nemar_citation_count":2,"computed_title":"Electrode walking study","nchans_counts":[{"val":67,"count":36}],"sfreq_counts":[{"val":500.0,"count":36}],"stats_computed_at":"2026-04-21T23:17:03.729207+00:00","tags":{"pathology":["Healthy"],"modality":["Auditory"],"type":["Attention"],"confidence":{"pathology":0.7,"modality":0.85,"type":0.75},"reasoning":{"few_shot_analysis":"Closest few-shot match by paradigm is the oddball examples: (1) \"Cross-modal Oddball Task\" (Parkinson's) shows that an oddball paradigm is labeled with the stimulus modality (visual+auditory there → Multisensory). (2) \"EEG: Three-Stim Auditory Oddball and Rest in Acute and Chronic TBI\" shows an oddball paradigm with tones mapped to Auditory modality. Unlike those examples, the present dataset is not a clinical cohort (so Pathology should not be Parkinson's/TBI) and the main cognitive construct in a counting-deviants oddball maps best to Attention (rather than Clinical/Intervention used when the clinical condition is the primary focus).","metadata_analysis":"Key facts from provided metadata: (1) Participants appear non-clinical: \"Each of 18 participants\" and demographics only: \"Age range: 20-28\" with no diagnosis/condition stated. (2) Auditory oddball stimulus is explicit: \"Participants performed an oddball task in which they listened to the tones through headphones and silently counted the deviant tones.\" (3) Auditory stimulus parameters: \"The tones were 800 and 1000 Hz\". (4) There is also an additional auditory pacing stimulus in walking-together: \"The experimenter listened to a metronome while walking\". (5) Rest/EOEC is present but is one of several tasks: \"Task 1: Eyes open / Eyes closed\" plus standing/walking oddball and walking synchronization tasks.","paper_abstract_analysis":"No useful paper information.","evidence_alignment_check":"Pathology — Metadata says: only demographics (e.g., \"Each of 18 participants\"; \"Age range: 20-28\"), no diagnosis mentioned → suggests Healthy. Few-shot pattern suggests: when no clinical recruitment is stated, label Healthy. ALIGN.\nModality — Metadata says: \"listened to the tones through headphones\" and \"The tones were 800 and 1000 Hz\" (plus \"metronome\") → Auditory input dominates the active tasks. Few-shot pattern suggests: oddball with tones is Auditory (cf. auditory oddball few-shot). ALIGN.\nType — Metadata says: oddball with \"silently counted the deviant tones\" which is a classic attention/target-detection manipulation; also includes walking/synchronization but that is the motor context rather than the stimulus modality. Few-shot pattern suggests: oddball paradigms are typically treated as attention/target detection constructs unless the dataset is primarily a clinical/intervention cohort. ALIGN (with some ambiguity vs Motor due to walking focus).","decision_summary":"Top-2 candidates per category:\nPathology: (1) Healthy — supported by lack of any diagnosis plus generic demographics: \"Each of 18 participants\"; \"Age range: 20-28\". (2) Unknown — possible because the metadata never explicitly says \"healthy\". Winner: Healthy.\nModality: (1) Auditory — explicit auditory stimuli: \"tones through headphones\"; \"800 and 1000 Hz\"; plus \"metronome\". (2) Resting State — because there is \"Eyes open / Eyes closed\" standing. Winner: Auditory (oddball + metronome tasks provide the dominant stimulus channel).\nType: (1) Attention — oddball target detection with counting: \"silently counted the deviant tones\". (2) Motor — substantial walking/synchronization manipulation. Winner: Attention because the explicit cognitive task component is deviant detection/counting; walking is the behavioral context.\nConfidence justification: Pathology at 0.7 because Healthy is inferred from absence of clinical terms (no explicit \"healthy\" statement). Modality at 0.85 because multiple direct quotes specify auditory stimuli. Type at 0.75 because the oddball counting clearly indicates attentional target detection, but walking/synchronization introduces a plausible Motor alternative."}},"total_duration_s":153520.566,"tagger_meta":{"config_hash":"3557b68bca409f28","metadata_hash":"7f71eaa908f21f7c","model":"openai/gpt-5.2","tagged_at":"2026-04-07T09:32:40.872789+00:00"},"canonical_name":null,"name_confidence":0.56,"name_meta":{"suggested_at":"2026-04-14T10:18:35.343Z","model":"openai/gpt-5.2 + openai/gpt-5.4-mini + deterministic_fallback"},"name_source":"author_year","author_year":"Scanlon2022"}}