{"dataset":{"id":"52926","dataset_id":"on003509","name":"EEG: Simon Conflict in Parkinson's","description":"This dataset comprises EEG recordings from 28 Parkinson's disease patients and 28 matched controls performing a Simon conflict task with cost of conflict reinforcement manipulation. Parkinson's patients were tested twice within one week under both ON and OFF medication conditions, while controls participated in a single session. The study investigates neural correlates of conflict processing and decision-making in Parkinson's disease using event-related potentials.","owner_user_id":15,"status":"active","github_repo":"nemarDatasets/on003509","concept_doi":"10.82901/nemar.on003509","latest_version_doi":"10.82901/nemar.on003509.v1.0.0","created_at":"2026-06-22 00:31:15","updated_at":"2026-07-10 22:16:05","zenodo_concept_id":null,"is_sandbox":0,"visibility":"public","ezid_status":"public","enrichment_json":"{\n  \"version\": \"2.0\",\n  \"pipeline_stage\": \"enriched\",\n  \"title\": \"EEG: Simon Conflict in Parkinson's\",\n  \"description\": \"This dataset comprises EEG recordings from 28 Parkinson's disease patients and 28 matched controls performing a Simon conflict task with cost of conflict reinforcement manipulation. Parkinson's patients were tested twice within one week under both ON and OFF medication conditions, while controls participated in a single session. The study investigates neural correlates of conflict processing and decision-making in Parkinson's disease using event-related potentials.\",\n  \"methods_description\": \"EEG data were collected during a Simon conflict task adapted from established protocols. Parkinson's disease patients completed two sessions separated by one week, tested under both ON and OFF medication states. Control subjects completed a single session. Accelerometer data (X, Y, Z dimensions) were simultaneously recorded from the most tremor-affected hand in Parkinson's patients. Task stimuli were presented using MATLAB programming language.\",\n  \"license\": \"CC0\",\n  \"dataset_type\": \"raw\",\n  \"authors\": {\n    \"James F Cavanagh\": {\n      \"orcid\": \"0000-0003-2428-3562\"\n    },\n    \"Arun Singh\": {},\n    \"Kumar Narayanan\": {}\n  },\n  \"keywords\": [\n    {\n      \"term\": \"EEG\"\n    },\n    {\n      \"term\": \"Parkinson's disease\"\n    },\n    {\n      \"term\": \"conflict processing\"\n    },\n    {\n      \"term\": \"Simon task\"\n    },\n    {\n      \"term\": \"event-related potentials\"\n    },\n    {\n      \"term\": \"motor control\"\n    },\n    {\n      \"term\": \"decision-making\"\n    },\n    {\n      \"term\": \"medication\"\n    },\n    {\n      \"term\": \"accelerometer\"\n    },\n    {\n      \"term\": \"cost of conflict\"\n    },\n    {\n      \"term\": \"reinforcement\"\n    }\n  ],\n  \"related_identifiers\": [\n    {\n      \"identifier\": \"https://github.com/nemarDatasets/on003509\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"https://nemar.org/dataexplorer/detail?dataset_id=on003509\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.1038/ncomms6394\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"References\"\n    },\n    {\n      \"identifier\": \"10.1016/j.cortex.2017.02.021\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsSupplementedBy\"\n    },\n    {\n      \"identifier\": \"10.1016/j.neuropsychologia.2018.05.020\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsSupplementedBy\"\n    },\n    {\n      \"identifier\": \"10.18112/openneuro.ds003509.v1.1.0\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDerivedFrom\"\n    }\n  ],\n  \"resource_type_specific\": \"EEG Dataset\",\n  \"modalities\": [\n    \"eeg\"\n  ],\n  \"sizes\": [\n    \"24.0 GB (1170 files)\"\n  ],\n  \"formats\": [\n    \".bmp\",\n    \".docx\",\n    \".fdt\",\n    \".gitattributes\",\n    \".json\",\n    \".m\",\n    \".mat\",\n    \".md\",\n    \".set\",\n    \".tsv\",\n    \".xlsx\",\n    \".yml\",\n    \".zip\"\n  ],\n  \"source_hash\": \"21dea76cac71cb6859a87b5ea4bc644d606563ec8e82e2896cbdbf5935366259\"\n}","last_activity_at":"2026-06-22 00:31:15","source":"openneuro","source_id":"ds003509","subject_count":56,"modalities":"eeg","age_min":48,"age_max":84,"file_size":23988725045,"total_files":1809,"tasks":"SimonConflict","metadata_columns_error":null,"staleness_warn_stage":null,"staleness_admin_notified_at":null,"authors":"James F Cavanagh, Arun Singh, Kumar Narayanan","license":"CC0","readme":"[![DOI](https://img.shields.io/badge/DOI-10.82901%2Fnemar.on003509-blue)](https://doi.org/10.82901/nemar.on003509)\n\nSimon conflict task with cost of conflict reinforcement manipulation.   28 Parkinson patients and 28 matched controls.  Task adapted from here: 10.1038/ncomms6394.    Beh data first published here: 10.1016/j.cortex.2017.02.021.  EEG published here: 10.1016/j.neuropsychologia.2018.05.020.   PD came in twice separated by a week, either ON or OFF medication.  CTL only came in once.  Task included in Matlab programming language.   Data collected circa 2015 in Cognitive Rhythms and Computation Lab at University of New Mexico.  Subjs also had an acceleromter taped to their most tremor affected hand.  X, Y, Z dimensions recorded throughout.  Check the .xls sheet under code folder for more meta data.   Triggers are complicated.  See CC_Triggers.mat under code folder.  Many analysis scripts are included; no idea how these hold up.   Many are old.  - James F Cavanagh 02/08/2021","bids_version":"1.1.1","sessions_count":2,"publish_date":null,"embedding_dirty":0,"license_tier":"public","zarr_status":"ready","zarr_converted_at":"2026-09-06 20:32:36","zarr_store_count":84,"zarr_index_etag":"e82a9382cf9a3137799c461d76119a6c","zarr_source_commit":"de3bb307eb3c39658a14ceddc68802f0555110a7","archive_status":"ready","archive_size":19182863280,"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":1,"num_datapaper_citations":0,"n_channels":67,"electrode_system":"10-10","has_hed":0,"hed_version":null,"is_exemplar":0,"bytes_present":23954324879,"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":174725.50400000002,"recording_duration_min":1095.152,"recording_duration_max":3168.6,"recording_count":84,"recordings_unavailable":0,"recordings_measured":84,"channel_count_min":67,"channel_count_max":67,"sampling_frequency":500,"power_line_frequency":60,"eeg_reference":"CPz","placement_scheme":null,"sweep_stamps":"{\"enrichment_updated_at\":\"2026-06-22 00:41:41\",\"metadata_updated_at\":\"2026-06-22 00:41:53\",\"archive_checked_at\":\"2026-06-22 00:55:46\",\"zarr_checked_at\":null,\"records_checked_at\":\"2026-06-22 00:42:28\",\"citations_updated_at\":\"2026-09-10 03:00:20\",\"channel_montage_checked_at\":\"2026-06-28 23:11:39\",\"hed_checked_at\":\"2026-06-30 04:43:21\",\"data_checked_at\":\"2026-07-31 03:01:10\",\"availability_report_at\":\"2026-07-23 01:14:04\",\"signal_defaults_at\":\"2026-09-02 11:59:43\",\"recording_stats_at\":\"2026-09-07 03:01:04\"}","participants":56,"num_citations":1,"latest_version":"v1.0.0","zarr_verify_status":null,"zarr_verified_at":null,"owner_username":"nemarAdmin","owner_github":"nemarAdmin","file_size_formatted":"22.34 GB","zarr_data_failures":null,"zarr_index_url":"https://zarr.nemar.org/on003509/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}}