{"success":true,"database":"eegdash","data":{"_id":"6953f4249276ef1ee07a3399","dataset_id":"ds004855","associated_paper_doi":null,"authors":["Tony Johnson","Stephen Gordon","Jon Touryan","Kevin King"],"bids_version":"1.8.0","contact_info":["Kevin King"],"contributing_labs":null,"data_processed":false,"dataset_doi":"doi:10.18112/openneuro.ds004855.v1.0.0","datatypes":["eeg"],"demographics":{"subjects_count":1,"ages":[],"age_min":null,"age_max":null,"age_mean":null,"species":null,"sex_distribution":null,"handedness_distribution":null},"experimental_modalities":null,"external_links":{"source_url":"https://openneuro.org/datasets/ds004855","osf_url":null,"github_url":null,"paper_url":null},"funding":[],"ingestion_fingerprint":"ab6a0dd524958b170381fafec4a78ce8b461d63cb79bdb28040fb9f1db9a1c3b","license":"CC0","n_contributing_labs":null,"name":"FT","readme":"FT dataset\nThis is a placeholder dataset.","recording_modality":["eeg"],"senior_author":"Kevin King","sessions":[],"size_bytes":83056628,"source":"openneuro","study_design":null,"study_domain":null,"tasks":["nback"],"timestamps":{"digested_at":"2026-04-22T12:27:03.556713+00:00","dataset_created_at":"2023-11-14T15:35:42.516Z","dataset_modified_at":"2023-11-14T15:36:36.000Z"},"total_files":1,"storage":{"backend":"s3","base":"s3://openneuro.org/ds004855","raw_key":"dataset_description.json","dep_keys":["CHANGES","README","participants.tsv","task-nback_events.json"]},"tagger_meta":{"config_hash":"3557b68bca409f28","metadata_hash":"247ae7f62b4039fc","model":"openai/gpt-5.2","tagged_at":"2026-04-07T09:32:40.872789+00:00"},"tags":{"pathology":["Unknown"],"modality":["Unknown"],"type":["Memory"],"confidence":{"pathology":0.4,"modality":0.4,"type":0.7},"reasoning":{"few_shot_analysis":"Most similar few-shot example by cognitive paradigm is the healthy digit-span dataset (working memory) labeled Type=Memory. By convention, n-back is also a canonical working-memory paradigm, so this guides mapping the task label \"nback\" to Type=Memory. However, unlike the few-shot examples, this dataset provides essentially no stimulus details (so Modality cannot be inferred reliably) and no recruitment/diagnosis details (so Pathology cannot be asserted from convention alone).","metadata_analysis":"Key metadata is extremely sparse and explicitly indicates it is not a fully described study: (1) readme: \"This is a placeholder dataset.\" (2) tasks: \"nback\". (3) participants_overview: \"Subjects: 1\". No clinical population, no stimulus description (visual vs auditory), and no task description beyond the task name are provided.","paper_abstract_analysis":"No useful paper information.","evidence_alignment_check":"Pathology: Metadata says nothing about clinical recruitment (only \"Subjects: 1\" and \"placeholder dataset\"). Few-shot patterns cannot override missing facts. ALIGNMENT: insufficient evidence → choose Unknown.\nModality: Metadata does not describe stimuli; only task name \"nback\" is given. Few-shot conventions do not uniquely determine whether n-back was visual or auditory here. ALIGNMENT: insufficient evidence → choose Unknown.\nType: Metadata explicitly lists task \"nback\", which typically operationalizes working memory. Few-shot example (digit span) shows working-memory tasks map to Type=Memory. ALIGNMENT: aligns (task-name evidence + few-shot convention) → choose Memory.","decision_summary":"Top-2 candidates per category:\n- Pathology: (1) Unknown—supported by \"This is a placeholder dataset.\" and no diagnosis/recruitment info; (2) Healthy—possible default if typical non-clinical n-back, but not stated. Decision: Unknown. Confidence basis: only negative evidence (missing info).\n- Modality: (1) Unknown—no stimulus description beyond \"nback\"; (2) Visual—common for n-back, but not stated. Decision: Unknown. Confidence basis: absence of modality facts.\n- Type: (1) Memory—\"tasks: nback\" + few-shot convention that working-memory paradigms (e.g., digit span) map to Memory; (2) Attention—n-back also taxes sustained attention, but primary construct is working memory. Decision: Memory. Confidence basis: one explicit metadata feature (task name) plus strong paradigm-to-label convention from few-shot."}},"nemar_citation_count":0,"computed_title":"FT","nchans_counts":[{"val":64,"count":1}],"sfreq_counts":[{"val":128.0,"count":1}],"stats_computed_at":"2026-04-22T23:16:00.308604+00:00","total_duration_s":1926.1796875,"author_year":"Johnson2023_FT","canonical_name":null}}