{"schema_version":"0.3.0","doc_type":"dataset","dataset_id":"on004837","name":"Magnetoencephalographic (MEG) Pitch and Duration Mismatch Negativity (MMN) in First-Episode Psychosis","description":"This magnetoencephalographic (MEG) dataset comprises auditory oddball paradigm recordings from participants with first-episode psychosis and healthy controls, designed to investigate mismatch negativity (MMN) responses to pitch and duration deviants. The study includes three participant groups: healthy controls, first-episode schizophrenia, and first-episode affective psychosis patients. Data were collected as part of the Pittsburgh Early Psychosis Program between December 2017 and September 2021. The dataset includes clinical, neuropsychological, demographic, and medication data in the derivatives.","source":"nemar","recording_modality":["ANAT","MEG"],"bids_version":null,"license":"CC0","authors":[{"name":"Fran López-Caballero","name_type":"Personal"},{"name":"Mark Curtis","name_type":"Personal"},{"name":"Brian Coffman","name_type":"Personal"},{"name":"Dean Salisbury","name_type":"Personal"}],"keywords":[{"term":"Magnetoencephalography","subject_scheme":"MeSH","value_uri":"http://id.nlm.nih.gov/mesh/D015225"},{"term":"mismatch negativity","subject_scheme":"MeSH"},{"term":"psychosis","subject_scheme":"MeSH"},{"term":"auditory oddball paradigm"},{"term":"first-episode psychosis"},{"term":"Schizophrenia","subject_scheme":"MeSH","value_uri":"http://id.nlm.nih.gov/mesh/D012559"},{"term":"Pittsburgh Early Psychosis Program"}],"related_identifiers":[{"identifier":"https://github.com/nemarDatasets/on004837","identifier_type":"URL","relation_type":"IsDescribedBy"},{"identifier":"https://nemar.org/dataexplorer/detail?dataset_id=on004837","identifier_type":"URL","relation_type":"IsDescribedBy"},{"identifier":"10.1111/ejn.16107","identifier_type":"DOI","relation_type":"IsDescribedBy"},{"identifier":"10.18112/openneuro.ds004837.v1.0.2","identifier_type":"DOI","relation_type":"IsDerivedFrom"}],"contributors":[],"dates":[],"rights":[{"rights":"CC0","rights_uri":null,"rights_identifier":"CC0","rights_identifier_scheme":"SPDX"}],"language":null,"funding":[{"funder_name":"NIH","award_number":"R01 MH108568","award_title":null,"funder_identifier":null,"funder_identifier_type":null,"award_uri":null},{"funder_name":"NIH","award_number":"R01 MH113533","award_title":null,"funder_identifier":null,"funder_identifier_type":null,"award_uri":null}],"tasks":["attnmod"],"datatypes":["anat","meg"],"sessions":["0001"],"sessions_count":1,"demographics":{"subjects_count":60,"age_min":null,"age_max":null},"data_summary":{"total_files":342,"size_bytes":128779424102,"size_human":"120 GB"},"provenance":{"latest_snapshot":"v1.0.0","publish_date":"2026-06-25 16:43:38"},"external_links":{"dataset_doi":"10.82901/nemar.on004837","github_url":"https://github.com/nemarDatasets/on004837"},"extensions":{"nemar":{"versions":[{"version":"v1.0.0","doi":"10.82901/nemar.on004837.v1.0.0","created_at":"2026-06-25 16:43:38","manifest_url":"/on004837/v1.0.0/manifest.json"}],"bids_index":{"version":"v1.0.0","subjects":{"sub-2218A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01"]}}}}},"sub-2221A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01"]}}}}},"sub-2227A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01"]}}}}},"sub-2237A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01"]}}}}},"sub-2242A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01"]}}}}},"sub-2245A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01"]}}}}},"sub-2246A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01"]}}}}},"sub-2247A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01"]}}}}},"sub-2252A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2253A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2259A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2262A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2266A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2268A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01"]}}}}},"sub-2269A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2286A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01"]}}}}},"sub-2289A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2295A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01"]}}}}},"sub-2296A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01"]}}}}},"sub-2318A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2320A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2326A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2328A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01"]}}}}},"sub-2336A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2342A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2343A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2350A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2351A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2355A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2365A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01"]}}}}},"sub-2367A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2372A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2379A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2382A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2384A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2387A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2397A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2406A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2418A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2419A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2426A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2430A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2431A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2448A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2476A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2477A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2479A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2480A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2494A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2496A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2498A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2503A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2505A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2512A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2514A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2526A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2538A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2574A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2578A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}},"sub-2581A":{"sessions":["0001"],"modalities":{"anat":{"tasks":{}},"meg":{"tasks":{"attnmod":{"runs":["01","02"]}}}}}}},"pipeline_stage":"enriched","data_complete":1,"bytes_present":128779385292}}}