{"success":true,"database":"eegdash","data":{"_id":"69d16e04897a7725c66f4c53","dataset_id":"ds007558","associated_paper_doi":null,"authors":["Mengsha Qi"],"bids_version":"1.8.0","contact_info":null,"contributing_labs":null,"data_processed":false,"dataset_doi":"doi:10.18112/openneuro.ds007558.v1.0.0","datatypes":["eeg"],"demographics":{"subjects_count":67,"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/ds007558","osf_url":null,"github_url":null,"paper_url":null},"funding":[],"ingestion_fingerprint":"de8078d37cc1fbad3133d2809fe2fccd9e80f106642a5f6f9ff117fde2f5e0f1","license":"CC0","n_contributing_labs":null,"name":"EEG Pre/Post Intervention Dataset","readme":"# Dataset Description\n## Overview\nThis dataset contains EEG recordings from a study investigating neural activity changes before and after an intervention. The data are organized following the Brain Imaging Data Structure (BIDS) specification.\nThe dataset includes multiple participant groups and timepoints:\n- Group 1, Group 2, Group 3\n- Pre-intervention (pre) and Post-intervention (post)\n## Participants\nParticipants are labeled using anonymized IDs (e.g., sub-001, sub-002, etc.). Demographic and session-related information are provided in the corresponding TSV files where applicable.\n## Data Structure\nThe dataset follows the BIDS format:\n- `sub-XXX/`\n  - `ses-pre/` or `ses-post/`\n    - `eeg/`\n      - EEG recordings (.edf)\n      - Metadata files (.json)\n      - Events files (.tsv)\nEach subject contains EEG recordings organized by session (pre/post).\n## Experimental Design\nThe study compares neural activity before and after an intervention. Participants are divided into different groups to evaluate potential differences in outcomes.\n## Data Acquisition\nEEG data were recorded using standard acquisition systems. Detailed acquisition parameters are stored in the accompanying JSON sidecar files.\n## Data Processing\nThe dataset has been reorganized into BIDS format. File naming, metadata, and structure have been standardized to ensure compatibility with BIDS-compliant tools.\n## Known Issues\n- Some warnings may appear during BIDS validation but do not affect data usability.\n- All critical validation errors have been resolved.\n## Usage Notes\nThis dataset can be used for:\n- EEG signal analysis\n- Functional connectivity studies\n- Pre/post intervention comparisons\n## License\nPlease refer to the dataset repository for licensing information.\n## Acknowledgements\nWe thank all participants and researchers involved in data collection and processing.","recording_modality":["eeg"],"senior_author":null,"sessions":["post","pre"],"size_bytes":720338290,"source":"openneuro","storage":{"backend":"s3","base":"s3://openneuro.org/ds007558","raw_key":"dataset_description.json","dep_keys":["CHANGES","README.md","participants.tsv"]},"study_design":null,"study_domain":null,"tasks":["rest"],"timestamps":{"digested_at":"2026-05-31T16:31:21.415989+00:00","dataset_created_at":null,"dataset_modified_at":null},"total_files":121,"computed_title":"EEG Pre/Post Intervention Dataset","nchans_counts":[{"val":19,"count":106},{"val":21,"count":13},{"val":20,"count":2}],"sfreq_counts":[{"val":200.0,"count":121}],"stats_computed_at":"2026-05-31T19:34:32.603708+00:00","total_duration_s":93063.0,"tagger_meta":{"model":"openai/gpt-4o","tagged_at":"2026-06-10T08:19:41Z","source":"eegdash-llm-tagger"},"tags":{"pathology":["Healthy"],"modality":["Resting State"],"type":["Clinical/Intervention"],"confidence":{"pathology":0.7,"modality":0.9,"type":0.8},"reasoning":{"few_shot_analysis":"The few-shot examples indicate classification based on participant groups and study design. For example, datasets involving pre/post assessments and intervention studies often highlight 'Clinical/Intervention' as the Type if an intervention is explicitly present.","metadata_analysis":"The metadata explicitly states: 'This dataset contains EEG recordings from a study investigating neural activity changes before and after an intervention.' and 'The study compares neural activity before and after an intervention.' These indicate a focus on intervention effects.","paper_abstract_analysis":"No useful paper information.","evidence_alignment_check":{"Pathology":"Metadata suggests multiple participant groups without specifying any clinical condition ('Participants are divided into different groups'), which points to a likely focus on 'Healthy' or 'Other' since there's no specific clinical diagnosis.","Modality":"The events like 'photic_stimulation' and states 'eyes closed', 'eyes open' suggest potential Resting State involvement. Yet, without clear dominant sensory stimulus information, 'Resting State' takes precedence due to task elements.","Type":"Both metadata and few-shot patterns suggest this is an intervention study. The metadata includes 'neural activity changes before and after an intervention', suggesting 'Clinical/Intervention' even though few-shots emphasize the intervention aspect itself."},"decision_summary":"For Pathology, without evidence of any specific clinical condition, 'Healthy' becomes less clear but remains probable (0.7). For Modality, 'Resting State' is strongly indicated by open/close eye tasks (0.9). For Type, 'Clinical/Intervention' is supported by metadata focusing on pre/post interventions (0.8)."}},"author_year":"Qi2026","canonical_name":null,"bad_channels_info":null}}