{"dataset":{"id":"54119","dataset_id":"on003690","name":"EEG, ECG and pupil data from young and older adults: rest and auditory cued reaction time tasks","description":"This dataset comprises synchronized electroencephalogram (EEG), electrocardiogram (ECG), and pupillography recordings from 75 participants (36 young and 39 older adults) during auditory cued reaction time tasks and passive listening conditions. Participants performed a simple reaction time task and a go/no-go task, with EEG acquired at 500 Hz using 64 scalp electrodes, ECG recorded bipolarly from chest electrodes, and pupil data sampled at 240 Hz. The dataset is designed to investigate age-related differences in neural, cardiac, and pupillary responses during cognitive and perceptual decision-making tasks.","owner_user_id":15,"status":"active","github_repo":"nemarDatasets/on003690","concept_doi":"10.82901/nemar.on003690","latest_version_doi":"10.82901/nemar.on003690.v1.0.0","created_at":"2026-06-22 11:01:16","updated_at":"2026-07-10 22:19:01","zenodo_concept_id":null,"is_sandbox":0,"visibility":"public","ezid_status":"public","enrichment_json":"{\n  \"version\": \"2.0\",\n  \"pipeline_stage\": \"validated\",\n  \"title\": \"EEG, ECG and pupil data from young and older adults: rest and auditory cued reaction time tasks\",\n  \"description\": \"This dataset comprises synchronized electroencephalogram (EEG), electrocardiogram (ECG), and pupillography recordings from 75 participants (36 young and 39 older adults) during auditory cued reaction time tasks and passive listening conditions. Participants performed a simple reaction time task and a go/no-go task, with EEG acquired at 500 Hz using 64 scalp electrodes, ECG recorded bipolarly from chest electrodes, and pupil data sampled at 240 Hz. The dataset is designed to investigate age-related differences in neural, cardiac, and pupillary responses during cognitive and perceptual decision-making tasks.\",\n  \"methods_description\": \"EEG was recorded using a 64-channel Neuroscan system with electrodes placed according to the International 10-20 standard at 500 Hz sampling rate. ECG was recorded bipolarly from chest electrodes. Pupil data was acquired using an iView X Hi-Speed 1250 system (SMI) at 240 Hz. Participants performed auditory cued simple reaction time and go/no-go tasks (two 8-minute runs each, 120 trials per task) and a passive listening condition (4 minutes). Auditory stimuli were pure tones at 1500 Hz (cue), 1700 Hz (go), 1300 Hz (no-go), and 1000 Hz (error feedback), presented at approximately 67 dB(A). Electrode positions were digitized using a 3D Fastrak system.\",\n  \"license\": \"CC0\",\n  \"dataset_type\": \"raw\",\n  \"authors\": {\n    \"Maria J. Ribeiro\": {\n      \"orcid\": \"0000-0001-6422-3279\"\n    },\n    \"Miguel Castelo-Branco\": {}\n  },\n  \"keywords\": [\n    {\n      \"term\": \"EEG\"\n    },\n    {\n      \"term\": \"Electrocardiography\",\n      \"subject_scheme\": \"MeSH\",\n      \"value_uri\": \"http://id.nlm.nih.gov/mesh/D004562\"\n    },\n    {\n      \"term\": \"pupillography\"\n    },\n    {\n      \"term\": \"reaction time\"\n    },\n    {\n      \"term\": \"aging\"\n    },\n    {\n      \"term\": \"Event-Related Potentials, P300\",\n      \"subject_scheme\": \"MeSH\",\n      \"scheme_uri\": \"https://id.nlm.nih.gov/mesh/\",\n      \"value_uri\": \"http://id.nlm.nih.gov/mesh/D018913\"\n    },\n    {\n      \"term\": \"go/no-go task\"\n    }\n  ],\n  \"related_identifiers\": [\n    {\n      \"identifier\": \"https://github.com/nemarDatasets/on003690\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"https://nemar.org/dataexplorer/detail?dataset_id=on003690\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.1016/j.neurobiolaging.2018.09.028\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.1016/j.neuroimage.2019.06.004\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.18112/openneuro.ds003690.v1.0.0\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDerivedFrom\"\n    }\n  ],\n  \"funding_references\": [\n    {\n      \"funder_name\": \"Fundação para a Ciência e a Tecnologia\",\n      \"award_number\": \"SFRH/BPD/102188/2014\"\n    },\n    {\n      \"funder_name\": \"Fundação para a Ciência e a Tecnologia\",\n      \"award_number\": \"UID/NEU/04539/2013\"\n    },\n    {\n      \"funder_name\": \"Fundação para a Ciência e a Tecnologia\",\n      \"award_number\": \"POCI-01-0145-FEDER-007440\"\n    },\n    {\n      \"funder_name\": \"Fundação para a Ciência e a Tecnologia\",\n      \"award_number\": \"POCI-01-0145-FEDER-30852\"\n    },\n    {\n      \"funder_name\": \"Fundação para a Ciência e a Tecnologia\",\n      \"award_number\": \"POCI-01-0145-FEDER-016428\"\n    },\n    {\n      \"funder_name\": \"Fundação para a Ciência e a Tecnologia\",\n      \"award_number\": \"CENTRO-01-0145-FEDER-000016\"\n    }\n  ],\n  \"resource_type_specific\": \"EEG Dataset\",\n  \"modalities\": [\n    \"eeg\"\n  ],\n  \"sizes\": [\n    \"23.0 GB (382 files)\"\n  ],\n  \"formats\": [\n    \".gitattributes\",\n    \".json\",\n    \".m\",\n    \".md\",\n    \".set\",\n    \".tsv\",\n    \".yml\"\n  ],\n  \"source_hash\": \"b118d3e40e32cc81856b4f88740585abb380ae54b6cbeb23450fc9bf68cdc463\"\n}","last_activity_at":"2026-06-22 11:01:16","source":"openneuro","source_id":"ds003690","subject_count":75,"modalities":"eeg","age_min":19,"age_max":70,"file_size":23043495864,"total_files":2641,"tasks":"gonogo,passive,simpleRT","metadata_columns_error":null,"staleness_warn_stage":null,"staleness_admin_notified_at":null,"authors":"Maria J. Ribeiro, Miguel Castelo-Branco","license":"CC0","readme":"[![DOI](https://img.shields.io/badge/DOI-10.82901%2Fnemar.on003690-blue)](https://doi.org/10.82901/nemar.on003690)\n\nAge-related differences in EEG, ECG and pupilography during auditory cued reaction time tasks\n\nIn this study, we acquired the electroencephalogram (EEG), pupilogram and electrocardiogram (ECG) while a group of young (N = 36) and a group of older (N = 39) adults were engaged in auditory cued reaction time tasks (active tasks) or passively listening to the auditory stimulus used as temporal cue, presented with the same frequency as in the active tasks (passive task - 4 minutes acquired at the beginning of the session).\n\nThe active tasks were a cued simple reaction time task and a cued go/no-go task. In the active tasks, 16% of the trials were cue only trials (the cue was presented but no target followed).\n\nThe order of the active tasks was counterbalanced across participants and were acquired in two runs of 8 minutes per task. In each task, we acquired 120 trials. In the simple reaction time task, 100 trials were cue-target trials and 20 trials were cue-only. In the go/no-go task, 80 trials were cue-go trials, 20 were cue-no-go trials, and 20 trials were cue-only trials.\n\nParticipants were fixating a grey computer screen with a lighter grey fixation cross at the center. The auditory stimuli were single-frequency signals (pure tones) with duration 250 ms, with the following frequencies: cue 1500 Hz; go stimulus 1700 Hz; no-go stimulus 1300 Hz; and error feedback signal 1000 Hz.\n\nThe sounds were played at around 67 dB(A) from a hi-fi speakers system. All stimuli were suprathreshold.\n\nEEG signal was recorded using a 64-channel Neuroscan system with scalp electrodes placed according to the International 10-20 electrode placement standard, with reference between the electrodes CPz and Cz and ground between FPz and Fz. Acquisition rate was 500 Hz. Vertical and horizontal electrooculograms were recorded to monitor eye movements and blinks. Bipolar electrocardiogram (ECG) electrodes were placed on the chest. During data acquisition, the participants head was stabilized with a chin and forehead rest. Consequently, the electrodes on the forehead, FP1, FPz, and FP2, displayed signal fluctuation artifacts due to the pressure on the forehead rest. These were excluded from the recordings.\n\nElectrode positions were measured using a 3D-digitizer Fastrak (Polhemus, VT, USA) and imported into the EEGLAB files.\n\nPupil data was acquired with iView X Hi-Speed 1250 system from SMI with a sampling rate of 240 Hz. Pupil data was imported into the EEG dataset with the EYE-EEG EEGLAB plugin.\n\nSynchronized EEG, ECG and pupil data are included in separate channels in the EEGLAB .set files.\n\n","bids_version":"v1.2.1","sessions_count":null,"publish_date":null,"embedding_dirty":0,"license_tier":"public","zarr_status":"ready","zarr_converted_at":"2026-09-08 03:54:36","zarr_store_count":375,"zarr_index_etag":"fda760fd22fb8fb645c3125b96be078b","zarr_source_commit":"6e94595705306878bea25d51070b607172a8fcf4","archive_status":"ready","archive_size":18686808334,"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":4,"num_datapaper_citations":26,"n_channels":61,"electrode_system":"10-10","has_hed":0,"hed_version":null,"is_exemplar":0,"bytes_present":23039673144,"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":171565.12,"recording_duration_min":249.52,"recording_duration_max":818.48,"recording_count":375,"recordings_unavailable":0,"recordings_measured":375,"channel_count_min":64,"channel_count_max":66,"sampling_frequency":500,"power_line_frequency":50,"eeg_reference":"between_Cz_and_CPz","placement_scheme":null,"sweep_stamps":"{\"enrichment_updated_at\":\"2026-06-22 11:09:11\",\"metadata_updated_at\":\"2026-06-22 11:09:22\",\"archive_checked_at\":\"2026-06-22 11:22:57\",\"zarr_checked_at\":null,\"records_checked_at\":\"2026-06-22 11:10:20\",\"citations_updated_at\":\"2026-09-08 03:00:48\",\"channel_montage_checked_at\":\"2026-06-28 23:14:23\",\"hed_checked_at\":\"2026-06-30 04:46:15\",\"data_checked_at\":\"2026-08-02 03:01:10\",\"availability_report_at\":\"2026-07-23 01:14:51\",\"signal_defaults_at\":\"2026-09-02 12:02:17\"}","participants":75,"num_citations":30,"latest_version":"v1.0.0","zarr_verify_status":null,"zarr_verified_at":null,"owner_username":"nemarAdmin","owner_github":"nemarAdmin","file_size_formatted":"21.46 GB","zarr_data_failures":null,"zarr_index_url":"https://zarr.nemar.org/on003690/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}}