{"dataset":{"id":"52084","dataset_id":"on003039","name":"free walking study","description":"A mobile EEG study examining gait-related artifacts during naturalistic walking behavior. Nineteen participants completed outdoor walking tasks along two different routes, with repeated trials including a self-paced button-pressing condition. This dataset provides empirical characterization of movement-related noise in mobile neuroimaging recordings during unconstrained locomotion. This dataset is sourced from OpenNeuro (ds003039.v1.0.2) and has been republished on NEMAR.","owner_user_id":15,"status":"active","github_repo":"nemarDatasets/on003039","concept_doi":"10.82901/nemar.on003039","latest_version_doi":"10.82901/nemar.on003039.v1.0.0","created_at":"2026-06-21 15:31:02","updated_at":"2026-07-10 22:13:19","zenodo_concept_id":null,"is_sandbox":0,"visibility":"public","ezid_status":"public","enrichment_json":"{\n  \"version\": \"2.0\",\n  \"pipeline_stage\": \"enriched\",\n  \"title\": \"free walking study\",\n  \"description\": \"A mobile EEG study examining gait-related artifacts during naturalistic walking behavior. Nineteen participants completed outdoor walking tasks along two different routes, with repeated trials including a self-paced button-pressing condition. This dataset provides empirical characterization of movement-related noise in mobile neuroimaging recordings during unconstrained locomotion. This dataset is sourced from OpenNeuro (ds003039.v1.0.2) and has been republished on NEMAR.\",\n  \"methods_description\": \"Mobile EEG recordings were collected from 19 participants during free walking outdoors. Subjects walked two different routes, each traversed twice—once with self-paced button pressing and once without. Detailed methodological information is provided in the associated publication (Jacobsen et al., 2020). This dataset originates from OpenNeuro dataset ds003039.v1.0.2.\",\n  \"license\": \"CC0\",\n  \"dataset_type\": \"raw\",\n  \"authors\": {\n    \"Nadine Jacobsen\": {},\n    \"Sarah Blum\": {},\n    \"Karsten Witt\": {},\n    \"Stefan Debener\": {},\n    \"Joanna Scanlon\": {}\n  },\n  \"keywords\": [\n    {\n      \"term\": \"EEG\"\n    },\n    {\n      \"term\": \"gait\"\n    },\n    {\n      \"term\": \"motion artifacts\"\n    },\n    {\n      \"term\": \"mobile neuroimaging\"\n    },\n    {\n      \"term\": \"outdoor walking\"\n    },\n    {\n      \"term\": \"ambulatory recording\"\n    },\n    {\n      \"term\": \"locomotion\"\n    },\n    {\n      \"term\": \"artifact characterization\"\n    },\n    {\n      \"term\": \"naturalistic behavior\"\n    },\n    {\n      \"term\": \"motor task\"\n    }\n  ],\n  \"related_identifiers\": [\n    {\n      \"identifier\": \"10.1111/ejn.14965\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"References\"\n    },\n    {\n      \"identifier\": \"https://github.com/nemarDatasets/on003039\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"https://nemar.org/dataexplorer/detail?dataset_id=on003039\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.18112/openneuro.ds003039\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsIdenticalTo\"\n    },\n    {\n      \"identifier\": \"10.18112/openneuro.ds003039.v1.0.2\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDerivedFrom\"\n    }\n  ],\n  \"resource_type_specific\": \"EEG Dataset\",\n  \"modalities\": [\n    \"eeg\"\n  ],\n  \"sizes\": [\n    \"7.0 GB (36 files)\"\n  ],\n  \"formats\": [\n    \".fdt\",\n    \".gitattributes\",\n    \".json\",\n    \".md\",\n    \".set\",\n    \".tsv\",\n    \".yml\"\n  ],\n  \"source_hash\": \"728f610714a9a223385b56effe38c533483f0a9e02d3151af26e06993db5cb51\"\n}","last_activity_at":"2026-06-21 15:31:02","source":"openneuro","source_id":"ds003039","subject_count":19,"modalities":"eeg","age_min":19,"age_max":32,"file_size":8401131414,"total_files":162,"tasks":"neurCorrYoung","metadata_columns_error":null,"staleness_warn_stage":null,"staleness_admin_notified_at":null,"authors":"Nadine Jacobsen, Sarah Blum, Karsten Witt, Stefan Debener, Joanna Scanlon","license":"CC0","readme":"[![DOI](https://img.shields.io/badge/DOI-10.82901%2Fnemar.on003039-blue)](https://doi.org/10.82901/nemar.on003039)\n\nThis free walking experiment consists of 19 participants.\nSubjects walked two different routes outdoors\nEach route was walked twice. Once while pressing buttons in a self-paced manner.\nThe article (see Reference) contains all methodological details\n\n- Nadine Jacobsen (March, 2020)","bids_version":"v2.0","sessions_count":null,"publish_date":null,"embedding_dirty":0,"license_tier":"public","zarr_status":"ready","zarr_converted_at":"2026-09-07 02:38:53","zarr_store_count":18,"zarr_index_etag":"e39c4d5c198c357f9b5d2695300530a7","zarr_source_commit":"58628e81434731785eca895e8703044aecc5a402","archive_status":"ready","archive_size":6810203966,"archive_retry_count":0,"records_status":"ready","archive_skip_reason":null,"zarr_errors":1,"zarr_failure_count":1,"zarr_deterministic":1,"zarr_failed_at":"2026-09-07 02:38:53","num_dataset_citations":0,"num_datapaper_citations":22,"n_channels":64,"electrode_system":"10-05","has_hed":0,"hed_version":null,"is_exemplar":0,"bytes_present":7036305744,"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":59471.00800000001,"recording_duration_min":2730.084,"recording_duration_max":3586.216,"recording_count":19,"recordings_unavailable":1,"recordings_measured":18,"channel_count_min":67,"channel_count_max":73,"sampling_frequency":500,"power_line_frequency":50,"eeg_reference":"common","placement_scheme":null,"sweep_stamps":"{\"enrichment_updated_at\":\"2026-06-21 15:38:49\",\"metadata_updated_at\":\"2026-06-21 15:38:59\",\"archive_checked_at\":\"2026-06-21 15:44:16\",\"zarr_checked_at\":null,\"records_checked_at\":\"2026-06-21 15:40:06\",\"citations_updated_at\":\"2026-09-09 03:00:09\",\"channel_montage_checked_at\":\"2026-06-28 23:09:35\",\"hed_checked_at\":\"2026-06-30 04:40:51\",\"data_checked_at\":\"2026-07-30 03:01:04\",\"availability_report_at\":\"2026-07-23 01:13:06\",\"signal_defaults_at\":\"2026-09-02 11:57:46\",\"recording_stats_at\":\"2026-09-07 03:00:59\"}","participants":19,"num_citations":22,"latest_version":"v1.0.0","zarr_verify_status":null,"zarr_verified_at":null,"owner_username":"nemarAdmin","owner_github":"nemarAdmin","file_size_formatted":"7.82 GB","zarr_data_failures":{"count":1,"detail_ref":"zarr/index.json","pending":0,"discovered":19},"zarr_index_url":"https://zarr.nemar.org/on003039/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}}