{"schema_version":"0.3.0","doc_type":"dataset","dataset_id":"nm000321","name":"Mainsah et al. 2025 — bigP3BCI: An Open, Diverse and Machine Learning Ready P300-based Brain-Computer Interface Dataset (Study Q)","description":"BigP3BCI Study Q is a P300-based brain-computer interface dataset comprising EEG recordings from 36 ALS subjects across 3 sessions each, using a 6x6 color intensification speller paradigm. The dataset contains 32-channel EEG data sampled at 256 Hz with standardized 10-20 electrode montage, annotated with target and non-target event labels using HED 8.4.0 schema. This derivative dataset is part of the larger BigP3BCI collection, the largest public P300 BCI dataset, and is optimized for machine learning applications in brain-computer interface research.","source":"nemar","recording_modality":["EEG"],"bids_version":null,"license":"CC-BY-4.0","authors":[{"name":"Boyla Mainsah","name_type":"Personal"},{"name":"Chance Fleeting","name_type":"Personal","orcid":"0000-0002-6271-4952","affiliations":[{"name":"Duke University","identifier":null,"scheme":null}]},{"name":"Thomas Balmat","name_type":"Personal"},{"name":"Eric Sellers","name_type":"Personal"},{"name":"Leslie Collins","name_type":"Personal"}],"keywords":[{"term":"EEG"},{"term":"Brain-Computer Interfaces","subject_scheme":"MeSH","scheme_uri":"https://id.nlm.nih.gov/mesh/","value_uri":"http://id.nlm.nih.gov/mesh/D062207"},{"term":"Event-Related Potentials, P300","subject_scheme":"MeSH","scheme_uri":"https://id.nlm.nih.gov/mesh/","value_uri":"http://id.nlm.nih.gov/mesh/D018913"},{"term":"visual perception"},{"term":"speller paradigm"},{"term":"amyotrophic lateral sclerosis"}],"related_identifiers":[{"identifier":"10.13026/0byy-ry86","identifier_type":"DOI","relation_type":"IsDerivedFrom"},{"identifier":"https://github.com/nemarDatasets/nm000321","identifier_type":"URL","relation_type":"IsDescribedBy"},{"identifier":"10.21105/joss.01896","identifier_type":"DOI","relation_type":"References"},{"identifier":"10.1038/s41597-019-0104-8","identifier_type":"DOI","relation_type":"References"},{"identifier":"https://nemar.org/dataset/nm000321","identifier_type":"URL","relation_type":"IsDescribedBy"}],"contributors":[],"dates":[],"rights":[{"rights":"CC-BY-4.0","rights_uri":null,"rights_identifier":"CC-BY-4.0","rights_identifier_scheme":"SPDX"}],"language":null,"funding":[],"tasks":["p300"],"datatypes":["eeg"],"sessions":["0"],"sessions_count":1,"demographics":{"subjects_count":36,"age_min":0,"age_max":0},"data_summary":{"total_files":2711,"size_bytes":3968094727,"size_human":"3.70 GB"},"provenance":{"latest_snapshot":"v1.0.3","publish_date":"2026-08-18 18:19:55"},"external_links":{"dataset_doi":"10.82901/nemar.nm000321","github_url":"https://github.com/nemarDatasets/nm000321"},"extensions":{"nemar":{"versions":[{"version":"v1.0.3","doi":"10.82901/nemar.nm000321.v1.0.3","created_at":"2026-08-18 18:19:55","manifest_url":"/nm000321/v1.0.3/manifest.json"},{"version":"v1.0.2","doi":"10.82901/nemar.nm000321.v1.0.2","created_at":"2026-08-11 21:00:28","manifest_url":"/nm000321/v1.0.2/manifest.json"},{"version":"v1.0.1","doi":"10.82901/nemar.nm000321.v1.0.1","created_at":"2026-06-03 10:25:20","manifest_url":"/nm000321/v1.0.1/manifest.json"}],"bids_index":{"version":"v1.0.3","subjects":{"sub-1":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-10":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-11":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-12":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-13":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-14":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-15":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-16":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-17":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-18":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-19":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-2":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-20":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-21":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-22":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-23":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-24":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-25":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-26":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-27":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-28":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-29":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-3":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-30":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-31":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-32":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-33":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-34":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-35":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-36":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-4":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-5":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-6":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-7":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-8":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}},"sub-9":{"sessions":["0"],"modalities":{"eeg":{"tasks":{"p300":{"runs":["0","1","2","3","4","5","6","7","8","9"]}}}}}}},"pipeline_stage":"validated","data_complete":1,"bytes_present":3955146768}}}