{"dataset":{"id":"61283","dataset_id":"on008446","name":"Random and Sequential Order Finger Motor Imagery ","description":"This dataset comprises 64-channel EEG recordings from 20 participants performing a finger motor imagery task, in which finger cues were presented in either random or sequential block orders, counterbalanced across subjects. The paradigm aims to investigate the effects of cue order predictability on motor imagery execution and associated neural dynamics. Data were collected using a g.tec EEG system and organized in BIDS format.","owner_user_id":15,"status":"active","github_repo":"nemarDatasets/on008446","concept_doi":"10.82901/nemar.on008446","latest_version_doi":"10.82901/nemar.on008446.v1.0.0","created_at":"2026-09-08 18:01:00","updated_at":"2026-09-08 18:10:07","zenodo_concept_id":null,"is_sandbox":0,"visibility":"public","ezid_status":"public","enrichment_json":"{\n  \"version\": \"2.0\",\n  \"pipeline_stage\": \"validated\",\n  \"title\": \"Random and Sequential Order Finger Motor Imagery \",\n  \"description\": \"This dataset comprises 64-channel EEG recordings from 20 participants performing a finger motor imagery task, in which finger cues were presented in either random or sequential block orders, counterbalanced across subjects. The paradigm aims to investigate the effects of cue order predictability on motor imagery execution and associated neural dynamics. Data were collected using a g.tec EEG system and organized in BIDS format.\",\n  \"methods_description\": \"EEG data were recorded using a g.tec GmbH system at a sampling frequency of 512 Hz with 65 channels (62 EEG, 2 reference, 1 marker). Participants performed finger motor imagery tasks cued in random or sequential block order, with block order counterbalanced across subjects. Marker channels encoded stimulus events including screen states and specific finger cues (thumb, index, middle, ring, pinky).\",\n  \"license\": \"CC0\",\n  \"dataset_type\": \"raw\",\n  \"authors\": {\n    \"Damm, Laura Marie\": {},\n    \"Jiang, Dai\": {},\n    \"Demosthenous, Andreas\": {}\n  },\n  \"keywords\": [\n    {\n      \"term\": \"EEG\"\n    },\n    {\n      \"term\": \"motor imagery\"\n    },\n    {\n      \"term\": \"finger movement\"\n    },\n    {\n      \"term\": \"brain-computer interface\"\n    },\n    {\n      \"term\": \"cue order\"\n    },\n    {\n      \"term\": \"BIDS\"\n    }\n  ],\n  \"related_identifiers\": [\n    {\n      \"identifier\": \"https://github.com/nemarDatasets/on008446\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"https://nemar.org/dataset/on008446\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.18112/openneuro.ds008446.v1.0.1\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDerivedFrom\"\n    }\n  ],\n  \"funding_references\": [\n    {\n      \"funder_name\": \"Engineering and Physical Sciences Research Council (EPSRC)\",\n      \"award_number\": \"EP/S022139/1\"\n    }\n  ],\n  \"resource_type_general\": \"Dataset\",\n  \"resource_type_specific\": \"EEG Dataset\",\n  \"modalities\": [\n    \"eeg\"\n  ],\n  \"sizes\": [\n    \"30.24 GB (208 files)\"\n  ],\n  \"formats\": [\n    \".csv\",\n    \".edf\",\n    \".jpg\",\n    \".json\",\n    \".md\",\n    \".tsv\",\n    \".yml\"\n  ],\n  \"source_hash\": \"51e635e344b9f390972f897555094b899bd3af88d279335755fdb52fedc9f294\"\n}","last_activity_at":"2026-09-08 18:01:00","source":"openneuro","source_id":"ds008446","subject_count":20,"modalities":"eeg","age_min":19,"age_max":57,"file_size":32902819045,"total_files":436,"tasks":"random,sequential","metadata_columns_error":null,"staleness_warn_stage":null,"staleness_admin_notified_at":null,"authors":"Damm, Laura Marie, Jiang, Dai, Demosthenous, Andreas","license":"CC0","readme":"[![DOI](https://img.shields.io/badge/DOI-10.82901%2Fnemar.on008446-blue)](https://doi.org/10.82901/nemar.on008446)\n\n# Random and Sequential Order Finger Motor Imagery\n\n## Description\nThis dataset contains EEG recordings from 20 participants performing a novel paradigm with finger cues for motor imagery execution cued in random and sequential blocks. Starting order was counterbalanced.\n\n## Acquisition\n- **EEG system:** g.tec GmbH\n- **Sampling frequency:** 512 Hz\n- **65 Channels:** \n    - 62 EEG Channels\n    - 2 Reference Channels\n    - 1 Marker Channel\n\n## Format\nData is stored in BIDS-compliant format with:\n- EEG recordings in EDF format\n- Channel information in `_channels.tsv` files\n- Metadata in `_eeg.json` sidecars\n\n## Participants\n- 20 participants\n- Counterbalanced block order conditions\n- Age range: 19-57 years\n\n## Marker Identification\n- 1 = White Screen\n- 2 = Focus Cross\n- 3 = Thumb\n- 4 = Index Finger\n- 5 = Middle Finger\n- 6 = Ring Finger\n- 7 = Pinky Finger \n\n\n## Tasks\n| Condition | Code | \n|-----------|------|\n| Random Cue Order | OR | \n| Sequential Cue Order | OS |\n\n## Block Assignment\nEach participant completed both conditions in either first or second block position, counterbalanced across subjects.\n\n## References\n- BIDS Version: 1.6.0\n- Dataset processed from original ERDS Study CSV exports\n\n## License\nSee LICENSE file for usage terms.\n\n","bids_version":"1.6.0","sessions_count":null,"publish_date":null,"embedding_dirty":0,"license_tier":"public","zarr_status":null,"zarr_converted_at":null,"zarr_store_count":null,"zarr_index_etag":null,"zarr_source_commit":null,"archive_status":"ready","archive_size":16477759360,"archive_retry_count":0,"records_status":"ready","archive_skip_reason":null,"zarr_errors":null,"zarr_failure_count":null,"zarr_deterministic":null,"zarr_failed_at":null,"num_dataset_citations":0,"num_datapaper_citations":0,"n_channels":64,"electrode_system":"10-10","has_hed":0,"hed_version":null,"is_exemplar":0,"bytes_present":32466239695,"data_complete":1,"withdrawn_at":null,"withdrawn_reason":null,"archive_complete":1,"archive_absent_files":0,"archive_declared_files":436,"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":512,"power_line_frequency":50,"eeg_reference":"Linked Mastoids","placement_scheme":null,"sweep_stamps":"{\"enrichment_updated_at\":\"2026-09-08 18:10:06\",\"metadata_updated_at\":\"2026-09-08 18:10:06\",\"records_checked_at\":\"2026-09-08 18:10:55\",\"archive_checked_at\":\"2026-09-08 18:22:42\"}","participants":20,"num_citations":0,"latest_version":"v1.0.0","zarr_verify_status":null,"zarr_verified_at":null,"owner_username":"nemarAdmin","owner_github":"nemarAdmin","file_size_formatted":"30.64 GB","zarr_data_failures":null,"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}}