{"dataset":{"id":"54515","dataset_id":"on003944","name":"EEG: First Episode Psychosis vs. Control Resting Task 1","description":"This dataset comprises resting-state EEG recordings from individuals with first-episode psychosis (FEP) and healthy controls, collected using a 60-channel 10-10 system montage. This is the first of two independently collected samples, containing 5-minute resting EEG recordings acquired with an Elekta Neuromag Vectorview system, accompanied by comprehensive clinical assessments including psychiatric rating scales, cognitive batteries, and socioeconomic measures. This resource enables investigation of cortical network abnormalities and neurophysiological markers associated with early psychotic illness.","owner_user_id":15,"status":"active","github_repo":"nemarDatasets/on003944","concept_doi":"10.82901/nemar.on003944","latest_version_doi":"10.82901/nemar.on003944.v1.0.0","created_at":"2026-06-22 22:01:53","updated_at":"2026-07-10 22:22:27","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: First Episode Psychosis vs. Control Resting Task 1\",\n  \"description\": \"This dataset comprises resting-state EEG recordings from individuals with first-episode psychosis (FEP) and healthy controls, collected using a 60-channel 10-10 system montage. This is the first of two independently collected samples, containing 5-minute resting EEG recordings acquired with an Elekta Neuromag Vectorview system, accompanied by comprehensive clinical assessments including psychiatric rating scales, cognitive batteries, and socioeconomic measures. This resource enables investigation of cortical network abnormalities and neurophysiological markers associated with early psychotic illness.\",\n  \"methods_description\": \"Resting-state EEG was recorded for 5 minutes using an Elekta Neuromag Vectorview system with a low-impedance 60-channel 10-10 system electrode cap. Clinical assessments included the Brief Psychiatric Rating Scale (BPRS), Scale for Assessment of Negative Symptoms (SANS), Scale for Assessment of Positive Symptoms (SAPS), Global Assessment of Functioning (GAF), Social Functioning Scale (SFS), MATRICS Consensus Cognitive Battery, Wechsler Abbreviated Scale of Intelligence (WASI), Hollingshead Four-Factor Index of Socioeconomic Status, and medication chlorpromazine equivalency.\",\n  \"license\": \"CC0\",\n  \"dataset_type\": \"raw\",\n  \"authors\": {\n    \"Dean Salisbury\": {},\n    \"Dylan Seebold\": {},\n    \"Brian Coffman\": {}\n  },\n  \"keywords\": [\n    {\n      \"term\": \"EEG\"\n    },\n    {\n      \"term\": \"first-episode psychosis\"\n    },\n    {\n      \"term\": \"resting-state\"\n    },\n    {\n      \"term\": \"cortical networks\"\n    },\n    {\n      \"term\": \"schizophrenia spectrum\"\n    },\n    {\n      \"term\": \"alpha oscillations\"\n    },\n    {\n      \"term\": \"Brief Psychiatric Rating Scale\"\n    },\n    {\n      \"term\": \"cognitive assessment\"\n    },\n    {\n      \"term\": \"clinical phenotyping\"\n    },\n    {\n      \"term\": \"healthy controls\"\n    },\n    {\n      \"term\": \"neurophysiological biomarkers\"\n    }\n  ],\n  \"related_identifiers\": [\n    {\n      \"identifier\": \"https://github.com/nemarDatasets/on003944\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"https://nemar.org/dataexplorer/detail?dataset_id=on003944\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.1016/j.bpsc.2020.07.013\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.18112/openneuro.ds003944.v1.0.1\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDerivedFrom\"\n    }\n  ],\n  \"resource_type_specific\": \"EEG Dataset\",\n  \"modalities\": [\n    \"eeg\"\n  ],\n  \"sizes\": [\n    \"6.6 GB (165 files)\"\n  ],\n  \"formats\": [\n    \".eeg\",\n    \".json\",\n    \".md\",\n    \".tsv\",\n    \".vhdr\",\n    \".yml\"\n  ],\n  \"source_hash\": \"640ec33103d47cb7534ced038e9d627be628140d913bfa10188c9c8640ba9c4f\"\n}","last_activity_at":"2026-06-22 22:01:53","source":"openneuro","source_id":"ds003944","subject_count":82,"modalities":"eeg","age_min":12.7994524298426,"age_max":35.9151266255989,"file_size":6606400561,"total_files":355,"tasks":"Rest","metadata_columns_error":null,"staleness_warn_stage":null,"staleness_admin_notified_at":null,"authors":"Dean Salisbury, Dylan Seebold, Brian Coffman","license":"CC0","readme":"[![DOI](https://img.shields.io/badge/DOI-10.82901%2Fnemar.on003944-blue)](https://doi.org/10.82901/nemar.on003944)\n\nResting EEG and MEG data was gathered for two independently collected samples of healthy and First Episode Psychosis (FEP) individuals.\r\nTo obtain resting data, EEG channels were recorded for 5 minutes using an Elekta Neuromag Vectorview system.\r\nEEG was recorded using a low-impedance 10-10 system 60-channel cap. \r\nThe first collected sample of EEG data is provided here. This sample includes a portion of subjects from the second acquisition (EEG: First Episode Psychosis vs. Control Resting Task 2), since they were collected using the same montage.\r\nThe subjects from Task 2 that have been included here are: sub-2140A, sub-2170A, sub-2174A, sub-2176A, sub-2177A, sub-2184A, sub-2193A, sub-2214A, sub-2217A, sub-2221A.\r\n\r\nThe phenotype directory contains clinical assessment results and data divided by type for all subjects. The assessment results were categorized as follows:\r\nBPRS - Brief Psychiatric Rating Scale,\r\nSANS - Scale for Assessment of Negative Symptoms,\r\nSAPS - Scale for Assessment of Positive Symptoms,\r\nGAFGAS - Global Assessment of Functioning,\r\nSFS - Social Functioning Scale,\r\nMATRICS - MATRICS Consensus Cognitive Battery,\r\nWASI - Wechsler Abbreviated Scale of Intelligence, \r\nHollingshead - Hollingshead Four-Factor Index of Socioeconomic Status,\r\nMedications - Chlorpromazine equivalency of prescribed medication at time of EEG scan.\r\nValues/scores that were not collected and questions without given responses are denoted by n/a.","bids_version":"v1.6.0","sessions_count":null,"publish_date":null,"embedding_dirty":0,"license_tier":"public","zarr_status":"failed","zarr_converted_at":null,"zarr_store_count":null,"zarr_index_etag":null,"zarr_source_commit":null,"archive_status":"ready","archive_size":3398362498,"archive_retry_count":0,"records_status":"ready","archive_skip_reason":null,"zarr_errors":82,"zarr_failure_count":82,"zarr_deterministic":1,"zarr_failed_at":"2026-08-04 12:12:28","num_dataset_citations":13,"num_datapaper_citations":0,"n_channels":61,"electrode_system":"10-10","has_hed":0,"hed_version":null,"is_exemplar":0,"bytes_present":6606101048,"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":null,"recording_duration_min":null,"recording_duration_max":null,"recording_count":null,"recordings_unavailable":null,"recordings_measured":null,"channel_count_min":null,"channel_count_max":null,"sampling_frequency":1000,"power_line_frequency":60,"eeg_reference":"TP9","placement_scheme":null,"sweep_stamps":"{\"enrichment_updated_at\":\"2026-06-22 22:09:55\",\"metadata_updated_at\":\"2026-06-22 22:09:55\",\"archive_checked_at\":\"2026-06-22 22:12:52\",\"zarr_checked_at\":null,\"records_checked_at\":\"2026-06-22 22:10:25\",\"citations_updated_at\":\"2026-09-08 03:00:49\",\"channel_montage_checked_at\":\"2026-06-28 23:17:17\",\"hed_checked_at\":\"2026-06-30 04:49:27\",\"data_checked_at\":\"2026-08-04 03:00:27\",\"availability_report_at\":\"2026-07-23 01:15:58\",\"recording_stats_at\":null,\"signal_defaults_at\":\"2026-09-02 12:05:04\"}","participants":82,"num_citations":13,"latest_version":"v1.0.0","zarr_verify_status":null,"zarr_verified_at":null,"owner_username":"nemarAdmin","owner_github":"nemarAdmin","file_size_formatted":"6.15 GB","zarr_data_failures":{"count":82,"detail_ref":"zarr/index.json","compacted_by":"migration_0074"},"zarr_index_url":null,"attestation_deposit_type":null,"attestation_key_status":null,"attestation_deidentified":null,"attestation_no_duplicate":null,"attestation_upstream_source":null,"attestation_accepted_at":null}}