{"dataset":{"id":"57986","dataset_id":"on004579","name":"Interval Timing Task","description":"This dataset comprises EEG recordings from 139 subjects (94 individuals with Parkinson's disease and 45 controls) performing an Interval Timing task. EEG data were collected with a 64-channel BrainVision system while participants judged short (3-second) and long (7-second) time intervals following visual cues. The dataset is intended to support research into timing perception and its neural correlates in Parkinson's disease.","owner_user_id":15,"status":"active","github_repo":"nemarDatasets/on004579","concept_doi":"10.82901/nemar.on004579","latest_version_doi":"10.82901/nemar.on004579.v1.0.0","created_at":"2026-06-24 21:31:44","updated_at":"2026-08-19 09:01:58","zenodo_concept_id":null,"is_sandbox":0,"visibility":"public","ezid_status":"public","enrichment_json":"{\n  \"version\": \"2.0\",\n  \"pipeline_stage\": \"validated\",\n  \"title\": \"Interval Timing Task\",\n  \"description\": \"This dataset comprises EEG recordings from 139 subjects (94 individuals with Parkinson's disease and 45 controls) performing an Interval Timing task. EEG data were collected with a 64-channel BrainVision system while participants judged short (3-second) and long (7-second) time intervals following visual cues. The dataset is intended to support research into timing perception and its neural correlates in Parkinson's disease.\",\n  \"methods_description\": \"EEG was recorded using a 64-channel BrainVision cap while participants performed an interval timing task. Instructional text ('Short interval' or 'Long interval') was displayed for 1 second, followed by a visual cue (a solid box) indicating the start of the interval, lasting 6 s for 3-s trials and 14 s for 7-s trials. Participants pressed a spacebar when they judged the interval had elapsed, without counting, and a distractor vowel appeared at random intervals.\",\n  \"license\": \"CC0\",\n  \"dataset_type\": \"raw\",\n  \"authors\": {\n    \"Arun Singh arun.singh@usd.edu\": {},\n    \"Rachel Cole rachel-cole@uiowa.edu\": {},\n    \"Arturo Espinoza arturo-espinoza@uiowa.edu\": {},\n    \"Jan R Wessel jan-wessel@uiowa.edu\": {},\n    \"Jim Cavanagh jcavanagh@unm.edu\": {},\n    \"Nandakumar Narayanan nandakumar-narayanan@uiowa.edu\": {}\n  },\n  \"keywords\": [\n    {\n      \"term\": \"EEG\"\n    },\n    {\n      \"term\": \"Parkinson Disease\",\n      \"subject_scheme\": \"MeSH\",\n      \"value_uri\": \"http://id.nlm.nih.gov/mesh/D010300\"\n    },\n    {\n      \"term\": \"Time Perception\",\n      \"subject_scheme\": \"MeSH\",\n      \"value_uri\": \"http://id.nlm.nih.gov/mesh/D013998\"\n    },\n    {\n      \"term\": \"interval timing\"\n    },\n    {\n      \"term\": \"cognitive task\"\n    },\n    {\n      \"term\": \"BrainVision\"\n    }\n  ],\n  \"related_identifiers\": [\n    {\n      \"identifier\": \"10.1101/2022.07.26.22278079\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"References\"\n    },\n    {\n      \"identifier\": \"https://github.com/nemarDatasets/on004579\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.18112/openneuro.ds004579.v1.0.0\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDerivedFrom\"\n    },\n    {\n      \"identifier\": \"https://nemar.org/dataset/on004579\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    }\n  ],\n  \"resource_type_specific\": \"EEG Dataset\",\n  \"modalities\": [\n    \"eeg\"\n  ],\n  \"sizes\": [\n    \"25.9 GB (279 files)\"\n  ],\n  \"formats\": [\n    \".fdt\",\n    \".json\",\n    \".md\",\n    \".set\",\n    \".tsv\",\n    \".yml\"\n  ],\n  \"source_hash\": \"e6b16b2d898c9b308c4cee50ab2c844ffaad61e5e685c846aa3957906f3824dd\"\n}","last_activity_at":"2026-06-24 21:31:44","source":"openneuro","source_id":"ds004579","subject_count":139,"modalities":"eeg","age_min":48,"age_max":86,"file_size":25896740593,"total_files":983,"tasks":"IntervalTiming","metadata_columns_error":null,"staleness_warn_stage":null,"staleness_admin_notified_at":null,"authors":"Arun Singh arun.singh@usd.edu, Rachel Cole rachel-cole@uiowa.edu, Arturo Espinoza arturo-espinoza@uiowa.edu, Jan R Wessel jan-wessel@uiowa.edu, Jim Cavanagh jcavanagh@unm.edu, Nandakumar Narayanan nandakumar-narayanan@uiowa.edu","license":"CC0","readme":"[![DOI](https://img.shields.io/badge/DOI-10.82901%2Fnemar.on004579-blue)](https://doi.org/10.82901/nemar.on004579)\n\nThis experiment includes 139 subjects: 94 individuals with Parkinsons disease, \nand 45 controls. Subjects completed  this IntervalTiming task (along with multiple other cognitive tasks) \nwhile EEG was recorded with a 64-channel BrainVision cap. This task presented black instructional \ntext on the center of a white screen that read \"Short interval\" on 3-second interval trials \nand \"Long interval\" on 7-second interval trials. The researchers never communicated the actual \ninterval durations to the patient. The instructions were displayed for 1 second,  and the appearance \nof an image of a solid box in the center of the computer screen indicated the start of the interval. \nThe cue was displayed on the screen for the entire trial, which lasted 6 s for 3-s intervals and \n14 s for 7-s intervals. The researchers instructed participants to press the keyboard spacebar \nwhen they judged the target interval to have elapsed. Participants were directed not to count, and \na distractor vowel appeared at random intervals in the screen center.","bids_version":"v1.2.1","sessions_count":null,"publish_date":null,"embedding_dirty":0,"license_tier":"public","zarr_status":"ready","zarr_converted_at":"2026-08-06 01:07:06","zarr_store_count":139,"zarr_index_etag":"662538c1ed59a92976a34c8f446d27bf","zarr_source_commit":"51c9fbbdd2d3413890a0c85f82253fe5e5c70851","archive_status":"ready","archive_size":23722603917,"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":9,"n_channels":63,"electrode_system":"10-10","has_hed":0,"hed_version":null,"is_exemplar":0,"bytes_present":25891056788,"data_complete":1,"withdrawn_at":null,"withdrawn_reason":null,"archive_complete":null,"archive_absent_files":null,"archive_declared_files":null,"zarr_pool_breaks":null,"total_recording_duration":200531.08000000007,"recording_duration_min":1110.82,"recording_duration_max":2256.06,"recording_count":139,"recordings_unavailable":0,"recordings_measured":139,"channel_count_min":63,"channel_count_max":66,"sampling_frequency":500,"power_line_frequency":60,"eeg_reference":"Pz","placement_scheme":null,"sweep_stamps":"{\"enrichment_updated_at\":\"2026-08-19 09:01:43\",\"metadata_updated_at\":\"2026-08-19 09:01:57\",\"archive_checked_at\":\"2026-06-24 21:55:52\",\"zarr_checked_at\":null,\"records_checked_at\":\"2026-06-24 21:41:23\",\"citations_updated_at\":\"2026-09-08 03:00:50\",\"channel_montage_checked_at\":\"2026-06-28 23:29:53\",\"hed_checked_at\":\"2026-06-30 05:02:37\",\"data_checked_at\":\"2026-08-12 03:00:36\",\"availability_report_at\":\"2026-07-23 01:19:49\",\"recording_stats_at\":\"2026-09-02 11:32:51\",\"signal_defaults_at\":\"2026-09-02 12:17:19\"}","participants":139,"num_citations":9,"latest_version":"v1.0.0","zarr_verify_status":null,"zarr_verified_at":null,"owner_username":"nemarAdmin","owner_github":"nemarAdmin","file_size_formatted":"24.12 GB","zarr_data_failures":null,"zarr_index_url":"https://zarr.nemar.org/on004579/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}}