{"success":true,"database":"eegdash","data":{"_id":"6953f4249276ef1ee07a3412","dataset_id":"ds005697","associated_paper_doi":null,"authors":["Weilong Li","Hua Fan"],"bids_version":"1.8.0","contact_info":null,"contributing_labs":null,"data_processed":false,"dataset_doi":"doi:10.18112/openneuro.ds005697.v1.0.2","datatypes":["eeg"],"demographics":{"subjects_count":51,"ages":[25,23,23,25,30,26,25,24,24,24,24,28,28,26,28,24,25,25,25,24,27,26,24,24,24,26,26,28,25,22,24,24,25,27,25,25,23,23,24,27,24,24,24,24,24,23,27,26,26,24],"age_min":22,"age_max":30,"age_mean":25.02,"species":null,"sex_distribution":{"m":25,"f":25},"handedness_distribution":null},"experimental_modalities":null,"external_links":{"source_url":"https://openneuro.org/datasets/ds005697","osf_url":null,"github_url":null,"paper_url":null},"funding":[],"ingestion_fingerprint":"7d506b61b77d11d2a6e216f032d80675e55024f35b930e5c6ca7ff72ab7d3db0","license":"CC0","n_contributing_labs":null,"name":"PerceiveImagine","readme":"This dataset consists of electroencephalogram (EEG) signals collected by the 64 channel EEG device SynAmps2.\n###Participants and Conversations\nThis experiment included 54 participants. 2 participants gave up the experiment midway due to physical reasons, and 6 participants had poor signal collection results during the first collection and underwent a second collection. All participants met the experimental requirements\n###Task\nThis experiment requires participants to watch the image for 6 seconds according to the requirements, and then imagine the image they see for 6 seconds. The total dataset contains 340 images\n###Dataset version\nThe provided dataset consists of the original dataset\n###contact\nIf you have any questions, please contact:yingxmbio@foxmail.com","recording_modality":["eeg"],"senior_author":null,"sessions":[],"size_bytes":71486893305,"source":"openneuro","study_design":null,"study_domain":null,"tasks":["PerceiveImagine"],"timestamps":{"digested_at":"2026-05-31T16:21:33.428270+00:00","dataset_created_at":null,"dataset_modified_at":null},"total_files":51,"storage":{"backend":"s3","base":"s3://openneuro.org/ds005697","raw_key":"dataset_description.json","dep_keys":["CHANGES","README","participants.json","participants.tsv","task-PerceiveImagine_events.json"]},"tagger_meta":{"model":"gpt-6-sol","taxonomy":"v2","config_hash":"39931253008fe2df","tagged_at":"2026-10-06T13:13:11Z","source":"eegdash-llm-tagger"},"tags":{"pathology":["Healthy"],"modality":["Visual"],"type":["Perception"],"confidence":{"pathology":0.6,"modality":0.8,"type":0.8},"reasoning":{"few_shot_analysis":"The Meta-rdk example maps viewing visual stimuli to Visual and a study of visual processing to Perception. The auditory music-and-speech example also uses Perception for neural responses to presented stimuli. Neither is an exact imagery-task match, but both guide the stimulus and research-focus labels. Examples with participants and no recruited condition guide Healthy as the population convention.","metadata_analysis":"The task requires participants to \"watch the image for 6 seconds\" and then \"imagine the image they see for 6 seconds\"; it includes \"340 images.\" The readme reports \"54 participants\" and says \"All participants met the experimental requirements,\" without naming a recruited clinical condition. The participants overview gives an \"Age range: 22-30\" but no diagnosis.","paper_abstract_analysis":"No useful paper information.","evidence_alignment_check":"Pathology: Metadata says \"54 participants\" and \"All participants met the experimental requirements,\" with no diagnosis stated; few-shot normative-cohort examples suggest Healthy. They align, though health is inferred rather than explicitly confirmed. Modality: Metadata says \"watch the image for 6 seconds\" and \"340 images\"; visual-stimulus examples suggest Visual. They align. Type: Metadata says \"watch the image\" and \"imagine the image they see\"; visual-processing examples suggest Perception. They align for the viewing phase, while the imagery phase makes Memory a plausible alternative. No metadata fact is overridden by a few-shot pattern.","decision_summary":"Pathology—Healthy versus Unknown: Healthy is stronger because the described participants have no stated clinical recruitment; Unknown remains possible because health is not explicit. Confidence 0.6 rests on contextual inference from \"54 participants,\" \"All participants met the experimental requirements,\" and the absence of a diagnosis, not a direct health statement. Modality—Visual versus No stimulus: Visual wins because participants \"watch the image for 6 seconds\" and the dataset contains \"340 images\"; later imagery does not erase the presented visual stimuli. Confidence 0.8 reflects those two explicit features. Type—Perception versus Memory: Perception wins because viewing images is an explicit part of the perceive–imagine paradigm, whereas a memory construct or recall outcome is not stated. The supporting phrases are \"watch the image for 6 seconds\" and \"imagine the image they see for 6 seconds\"; confidence 0.8 reflects those two task descriptions, with some uncertainty about the imagery aim. All selections align with the relevant few-shot conventions."}},"nemar_citation_count":3,"computed_title":"PerceiveImagine","nchans_counts":[{"val":65,"count":45},{"val":69,"count":6}],"sfreq_counts":[{"val":1000.0,"count":50}],"stats_computed_at":"2026-05-31T19:34:32.601776+00:00","source_url":"https://openneuro.org/datasets/ds005697","total_duration_s":279681.3,"canonical_name":null,"name_confidence":0.95,"name_meta":{"suggested_at":"2026-04-14T10:18:35.343Z","model":"openai/gpt-5.2 + openai/gpt-5.4-mini + deterministic_fallback"},"name_source":"canonical","author_year":"Li2024_PerceiveImagine","bad_channels_info":null,"acknowledgements":"This study has received support from the National Key Special Project for the Integration of Biology and Information Technology (BT and IT Integration)","generated_by":[{"Name":"bids-matlab-tools","Version":"9.1"}]}}