{"dataset":{"id":"45269","dataset_id":"on007738","name":"Whole-Head Cocktail Party fNIRS","description":"This dataset comprises whole-head functional near-infrared spectroscopy (fNIRS) recordings from 38 subjects performing spatial-attention tasks in a cocktail-party paradigm with simultaneous eye-tracking. The study includes both overt attention tasks with eye movements and covert auditory attention tasks with central fixation, along with baseline and resting-state conditions. The fNIRS system captured 1134 measurement channels (56 sources, 144 detectors) at approximately 8.99 Hz sampling rate, providing comprehensive hemodynamic measurements during naturalistic audiovisual stimulus processing.","owner_user_id":15,"status":"active","github_repo":"nemarDatasets/on007738","concept_doi":"10.82901/nemar.on007738","latest_version_doi":"10.82901/nemar.on007738.v1.0.0","created_at":"2026-06-19 05:05:57","updated_at":"2026-07-10 23:18:10","zenodo_concept_id":null,"is_sandbox":0,"visibility":"public","ezid_status":"public","enrichment_json":"{\n  \"version\": \"2.0\",\n  \"pipeline_stage\": \"validated\",\n  \"title\": \"Whole-Head Cocktail Party fNIRS\",\n  \"license\": \"CC0\",\n  \"dataset_type\": \"raw\",\n  \"authors\": {\n    \"Sudan Duwadi\": {},\n    \"De'Ja Rogers\": {},\n    \"Alex D. Boyd\": {},\n    \"Laura B. Carlton\": {},\n    \"Yiwen Zhang\": {},\n    \"Anna Kawai Gaona\": {},\n    \"Aneesa Diya Pathiyaparambath\": {},\n    \"Ravin Chaudhury\": {},\n    \"Bernhard B Zimmermann\": {},\n    \"Walker J O'Brien\": {},\n    \"Alexander von Lühmann\": {},\n    \"David A. Boas\": {},\n    \"Meryem A. Yücel\": {},\n    \"Kamal Sen\": {}\n  },\n  \"related_identifiers\": [\n    {\n      \"identifier\": \"10.18112/openneuro.ds007738.v1.0.0\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDerivedFrom\"\n    },\n    {\n      \"identifier\": \"https://github.com/nemarDatasets/on007738\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"https://nemar.org/dataexplorer/detail?dataset_id=on007738\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    }\n  ],\n  \"modalities\": [\n    \"nirs\"\n  ],\n  \"resource_type_specific\": \"fNIRS Dataset\",\n  \"sizes\": [\n    \"34.7 GB (351 files)\"\n  ],\n  \"formats\": [\n    \".json\",\n    \".md\",\n    \".snirf\",\n    \".tsv\",\n    \".yml\"\n  ],\n  \"description\": \"This dataset comprises whole-head functional near-infrared spectroscopy (fNIRS) recordings from 38 subjects performing spatial-attention tasks in a cocktail-party paradigm with simultaneous eye-tracking. The study includes both overt attention tasks with eye movements and covert auditory attention tasks with central fixation, along with baseline and resting-state conditions. The fNIRS system captured 1134 measurement channels (56 sources, 144 detectors) at approximately 8.99 Hz sampling rate, providing comprehensive hemodynamic measurements during naturalistic audiovisual stimulus processing.\",\n  \"methods_description\": \"Whole-head fNIRS recordings were acquired using 56 sources and 144 detectors yielding 1134 measurement channels at ~8.99 Hz sampling rate. Simultaneous eye-tracking was performed during multiple task conditions: overt spatial attention with eye movements to audiovisual stimuli, covert auditory attention with central fixation, eye-movement-only baseline, resting-state with central fixation, and video-attention tasks. No anatomical imaging data were collected.\",\n  \"keywords\": [\n    {\n      \"term\": \"fNIRS\"\n    },\n    {\n      \"term\": \"functional near-infrared spectroscopy\"\n    },\n    {\n      \"term\": \"spatial attention\"\n    },\n    {\n      \"term\": \"cocktail party effect\"\n    },\n    {\n      \"term\": \"eye tracking\"\n    },\n    {\n      \"term\": \"hemodynamics\"\n    },\n    {\n      \"term\": \"audiovisual integration\"\n    }\n  ],\n  \"source_hash\": \"b60c22ec3259df79f8ccbf91821c173b9d1ef571e64402044178d42dffdff0e1\"\n}","last_activity_at":"2026-06-19 05:05:57","source":"openneuro","source_id":"ds007738","subject_count":38,"modalities":"nirs","age_min":null,"age_max":null,"file_size":40281973065,"total_files":1024,"tasks":"covert,longvisualorient,overt,resting,videoattend,visualorient","metadata_columns_error":null,"staleness_warn_stage":null,"staleness_admin_notified_at":null,"authors":"Sudan Duwadi, De'Ja Rogers, Alex D. Boyd, Laura B. Carlton, Yiwen Zhang, Anna Kawai Gaona, Aneesa Diya Pathiyaparambath, Ravin Chaudhury, Bernhard B Zimmermann, Walker J O'Brien, Alexander von Lühmann, David A. Boas, Meryem A. Yücel, Kamal Sen","license":"CC0","readme":"[![DOI](https://img.shields.io/badge/DOI-10.82901%2Fnemar.on007738-blue)](https://doi.org/10.82901/nemar.on007738)\n\nWhole-Head Cocktail Party fNIRS\n\nWhole-head functional near-infrared spectroscopy (fNIRS) recordings from\n38 subjects performing covert and overt spatial-attention tasks in a\ncocktail-party paradigm, with simultaneous eye-tracking.\n\nfNIRS: 56 sources, 144 detectors, 1134 measurement channels at ~8.99 Hz.\n\nTasks\n-----\novert:            Spatial attention with overt eye movements: subjects move\n                  their eyes to attend to audiovisual stimuli (videos) on the\n                  cued side.\n\ncovert:           Covert auditory attention: audio-only stimuli; subjects\n                  fixate the central plus sign and attend to left or right\n                  without moving their eyes.\n\nvisualorient:     Eye-movement-only baseline. Subjects make ~5 s eye orienting\n                  and fixation movements with no audiovisual stimuli and no\n                  fixation cross. Matches the overt task structure.\n\nresting:          Resting-state recording: 5 minutes of central-fixation on a\n                  plus sign with no task.\n\nlongvisualorient: Orienting + visual attention recording with events.tsv\n                  aligned to the audiovisual orienting cue. Subjects orient\n                  their eyes to the cue; ~15-17 s later a video clip appears\n                  on the attended side. Same SNIRF recording as videoattend;\n                  only the events.tsv differs.\n\nvideoattend:      Same SNIRF recording as longvisualorient, with events.tsv\n                  aligned to the onset of the video clip (~15-17 s after the\n                  orienting cue) for video-locked GLM analysis.\n\nPrivacy\n-------\nThis dataset contains only fNIRS optical measurements and eye-tracking time\nseries; no anatomical scans (MRI, CT, photographs, or otherwise) are\nincluded. Facial defacing is therefore not applicable to this dataset.\nData were acquired and shared under approved IRB consent.\n\nCompanion analysis code: https://github.com/duwadisudan/wholehead-cocktail-party-fnirs\n","bids_version":"1.7.1","sessions_count":null,"publish_date":null,"embedding_dirty":0,"license_tier":"public","zarr_status":"ready","zarr_converted_at":"2026-09-06 02:40:09","zarr_store_count":0,"zarr_index_etag":"66d47d5d08699904f0c9acac75ba9436","zarr_source_commit":"734362d1604c4bc614ab56ad028ea938ee2f2e3d","archive_status":"ready","archive_size":17266207034,"archive_retry_count":0,"records_status":"ready","archive_skip_reason":null,"zarr_errors":0,"zarr_failure_count":0,"zarr_deterministic":0,"zarr_failed_at":null,"num_dataset_citations":0,"num_datapaper_citations":0,"n_channels":null,"electrode_system":null,"has_hed":0,"hed_version":null,"is_exemplar":0,"bytes_present":34655328942,"data_complete":1,"withdrawn_at":null,"withdrawn_reason":null,"archive_complete":null,"archive_absent_files":null,"archive_declared_files":null,"zarr_pool_breaks":0,"total_recording_duration":null,"recording_duration_min":null,"recording_duration_max":null,"recording_count":0,"recordings_unavailable":0,"recordings_measured":0,"channel_count_min":null,"channel_count_max":null,"sampling_frequency":null,"power_line_frequency":null,"eeg_reference":null,"placement_scheme":null,"sweep_stamps":"{\"enrichment_updated_at\":\"2026-06-19 05:14:25\",\"metadata_updated_at\":\"2026-06-19 05:14:29\",\"archive_checked_at\":\"2026-06-19 05:31:32\",\"zarr_checked_at\":null,\"records_checked_at\":\"2026-06-19 05:15:23\",\"citations_updated_at\":null,\"channel_montage_checked_at\":null,\"hed_checked_at\":\"2026-06-30 05:45:39\",\"data_checked_at\":\"2026-07-26 03:00:32\",\"availability_report_at\":\"2026-07-23 01:33:40\",\"signal_defaults_at\":\"2026-09-02 12:58:05\",\"recording_stats_at\":\"2026-09-06 03:01:15\"}","participants":38,"num_citations":0,"latest_version":"v1.0.0","zarr_verify_status":null,"zarr_verified_at":null,"owner_username":"nemarAdmin","owner_github":"nemarAdmin","file_size_formatted":"37.52 GB","zarr_data_failures":null,"zarr_index_url":"https://zarr.nemar.org/on007738/zarr/index.json","attestation_deposit_type":null,"attestation_key_status":null,"attestation_deidentified":null,"attestation_no_duplicate":null,"attestation_upstream_source":null,"attestation_accepted_at":null}}