{"success":true,"database":"eegdash","data":{"_id":"6953f4249276ef1ee07a33cc","dataset_id":"ds005286","associated_paper_doi":null,"authors":["Zhao Xiangyue","Zhou Jingyao","Zhang Libo","Duan Haoqing","Wei Shiyu","Bi Yanzhi","Hu Li"],"bids_version":"1.1.1","contact_info":["Xiangyue Zhao"],"contributing_labs":null,"data_processed":true,"dataset_doi":"doi:10.18112/openneuro.ds005286.v1.0.0","datatypes":["eeg"],"demographics":{"subjects_count":30,"ages":[23,25,25,22,25,19,23,29,21,26,27,27,20,21,24,24,23,22,20,26,23,22,25,22,30,24,23,23,21,20],"age_min":19,"age_max":30,"age_mean":23.5,"species":null,"sex_distribution":{"f":22,"m":8},"handedness_distribution":null},"experimental_modalities":null,"external_links":{"source_url":"https://openneuro.org/datasets/ds005286","osf_url":null,"github_url":null,"paper_url":null},"funding":[],"ingestion_fingerprint":"6c991bf20fa11a915b5378003aeb92a59f99b08c99024f6b96e7c65747227d14","license":"CC0","n_contributing_labs":null,"name":"30 By ANT","readme":"1.Study introduction:\nIn this experiment, participants were initially exposed to a series of laser stimulations of varying intensities. Researchers identified the energy intensity corresponding to an average rating of 7 from the participants. Subsequently, each participant underwent 30 laser stimulis and provided verbal pain ratings one by one. The pain ratings were on a scale where 0 indicated no sensation at all, 4 indicated the onset of pain, 6 represented moderate pain, 8 indicated severe pain, and 10 denoted unbearable pain.\n2.Participant task information(description of the experiment):\nParticipants underwent laser stimulation and subsequently verbally rated the intensity of pain.\n3.Participant instructions(as exact as possible):\nParticipants were instructed to focus on the laser stimulation, keep their eyes open, and fix their gaze on the crosshairs displayed on the screen. After each laser stimulation, there is a five-second pause. Participants then rated the intensity of the pain. Subsequent trials began at random 5 seconds after the score was provided.\n4.References and links:\nNone\n5.Comment:\nAll laser markers are delayed by 100ms","recording_modality":["eeg"],"senior_author":"Hu Li","sessions":[],"size_bytes":10042737622,"source":"openneuro","study_design":null,"study_domain":null,"tasks":["30ByANT"],"timestamps":{"digested_at":"2026-04-22T12:27:35.493390+00:00","dataset_created_at":"2024-06-26T06:59:46.221Z","dataset_modified_at":"2024-06-26T09:16:24.000Z"},"total_files":30,"storage":{"backend":"s3","base":"s3://openneuro.org/ds005286","raw_key":"dataset_description.json","dep_keys":["CHANGES","README","participants.json","participants.tsv","task-30ByANT_events.json"]},"tagger_meta":{"config_hash":"4a051be509a0e3d0","metadata_hash":"9839f4c69ba18119","model":"openai/gpt-5.2","tagged_at":"2026-01-20T17:45:21.381811+00:00"},"tags":{"pathology":["Healthy"],"modality":["Tactile"],"type":["Perception"],"confidence":{"pathology":0.6,"modality":0.85,"type":0.8},"reasoning":{"few_shot_analysis":"Closest few-shot by stimulus modality is the 'Braille letters - EEG' example: it uses somatosensory stimulation delivered to fingers and is labeled Modality='Tactile'. This guides mapping laser-evoked pain (a somatosensory/nociceptive stimulus delivered to the body) to the same Modality label.\nFor Type, the schizophrenia visual discrimination example is labeled Type='Perception' because participants make trial-by-trial judgments about a sensory stimulus. Here, participants make trial-by-trial judgments about perceived pain intensity after each stimulus, which similarly fits Perception (sensory intensity estimation) rather than a learning/decision-policy task.\nNo few-shot directly covers pain, so Type and Pathology rely more on metadata facts/inference.","metadata_analysis":"Key task/stimulus facts:\n- Stimulus and rating: \"participants were initially exposed to a series of laser stimulations of varying intensities\" and \"each participant underwent 30 laser stimulis and provided verbal pain ratings one by one.\" \n- Perceptual report focus: \"Participants underwent laser stimulation and subsequently verbally rated the intensity of pain.\" and \"Participants were instructed to focus on the laser stimulation... After each laser stimulation... Participants then rated the intensity of the pain.\" \nOther procedural detail: \"All laser markers are delayed by 100ms\" (timing note, not affecting labels).\nPopulation/pathology: the README provides no diagnosis/clinical recruitment statement (no mention of patients, disorder groups, or treatment), only generic \"participants\".","paper_abstract_analysis":"No useful paper information.","evidence_alignment_check":"Pathology:\n1) Metadata says: only \"participants\" with no disorder/patient descriptors; no explicit diagnosis/recruitment condition is stated.\n2) Few-shot suggests: many non-clinical psychophysics datasets are labeled 'Healthy', but that is a convention-based inference.\n3) ALIGN/CONFLICT: No conflict; metadata is simply silent.\n4) Decision rule: because there is no explicit clinical population stated, label defaults to a normative cohort; however this is inferred rather than explicitly stated.\n\nModality:\n1) Metadata says: \"laser stimulations\" with \"verbal pain ratings\" and participants \"focus on the laser stimulation\".\n2) Few-shot suggests: somatosensory stimulation tasks map to 'Tactile' (e.g., Braille tactile stimulation).\n3) ALIGN/CONFLICT: Align.\n4) Winner: Tactile.\n\nType:\n1) Metadata says: repeated sensory stimulation with intensity ratings: \"rated the intensity of the pain\" on each trial.\n2) Few-shot suggests: trial-wise sensory judgments/discrimination map to 'Perception'.\n3) ALIGN/CONFLICT: Align.\n4) Winner: Perception (pain intensity perception/estimation).","decision_summary":"Top-2 candidates and final choices:\n\nPathology:\n- Healthy (winner): Metadata is silent on clinical recruitment; typical pain-rating paradigms are commonly run in non-clinical volunteers; no contrary indication.\n  Evidence: absence of pathology terms plus generic framing: \"participants\"; no mention of patients anywhere.\n- Unknown (runner-up): Because there is no explicit statement like \"healthy participants\" or inclusion/exclusion criteria.\nFinal: Healthy. Confidence limited because this is inference from missing information rather than an explicit quote.\n\nModality:\n- Tactile (winner): Laser stimulation is a somatosensory/nociceptive stimulus and the task is to feel it and rate pain: \"laser stimulations\"; \"focus on the laser stimulation\"; \"rated the intensity of the pain\".\n- Other (runner-up): If one treated laser-evoked pain as nonstandard stimulation, but it is still primarily somatosensory.\nFinal: Tactile.\n\nType:\n- Perception (winner): Primary purpose is sensory/pain intensity perception and reporting: \"verbally rated the intensity of pain\"; intensity scale defined; repeated trial-wise ratings.\n- Affect (runner-up): Pain has affective components, but the explicit instruction is intensity scaling rather than emotion induction/regulation.\nFinal: Perception."}},"computed_title":"30 By ANT","nchans_counts":[{"val":32,"count":30}],"sfreq_counts":[{"val":1000.0,"count":30}],"stats_computed_at":"2026-04-22T23:16:00.309237+00:00","total_duration_s":76167.898,"author_year":"Xiangyue2024_30_ANT","canonical_name":null}}