{"dataset":{"id":"55887","dataset_id":"on004256","name":" Encoding of Sound Source Elevation in Human Cortex","description":"This dataset contains EEG recordings from two experiments investigating the cortical encoding of sound source elevation in humans. Subjects were presented with noise bursts from loudspeakers positioned at various elevations in a hemi-anechoic chamber, and were also tested on their ability to localize elevated sound sources. Experiment I used a deviant detection paradigm, while Experiment II used a one-back task involving sound elevation discrimination.","owner_user_id":15,"status":"active","github_repo":"nemarDatasets/on004256","concept_doi":"10.82901/nemar.on004256","latest_version_doi":"10.82901/nemar.on004256.v1.0.0","created_at":"2026-06-23 19:31:50","updated_at":"2026-08-19 16:12:15","zenodo_concept_id":null,"is_sandbox":0,"visibility":"public","ezid_status":"public","enrichment_json":"{\n  \"version\": \"2.0\",\n  \"pipeline_stage\": \"validated\",\n  \"title\": \" Encoding of Sound Source Elevation in Human Cortex\",\n  \"description\": \"This dataset contains EEG recordings from two experiments investigating the cortical encoding of sound source elevation in humans. Subjects were presented with noise bursts from loudspeakers positioned at various elevations in a hemi-anechoic chamber, and were also tested on their ability to localize elevated sound sources. Experiment I used a deviant detection paradigm, while Experiment II used a one-back task involving sound elevation discrimination.\",\n  \"methods_description\": \"Subjects underwent localization tests using pink noise bursts from loudspeakers at various elevations and a fixed azimuth. In Experiment I (deviant detection), subjects heard a long adapter noise from one loudspeaker followed by a short probe noise from another loudspeaker at different elevations, and behavioral responses to deviants were recorded. In Experiment II (one-back task), subjects heard white noise through open headphones followed by a noise burst from a loudspeaker at varying elevations, with occasional target trials requiring localization responses.\",\n  \"license\": \"CC0\",\n  \"dataset_type\": \"raw\",\n  \"authors\": {\n    \"Ole Bialas\": {},\n    \"Marc Schoenwiesner\": {},\n    \"Burkhard Maess\": {}\n  },\n  \"keywords\": [\n    {\n      \"term\": \"EEG\"\n    },\n    {\n      \"term\": \"sound localization\"\n    },\n    {\n      \"term\": \"Auditory Cortex\",\n      \"subject_scheme\": \"MeSH\",\n      \"value_uri\": \"http://id.nlm.nih.gov/mesh/D001303\"\n    },\n    {\n      \"term\": \"elevation perception\"\n    },\n    {\n      \"term\": \"deviant detection\"\n    },\n    {\n      \"term\": \"one-back task\"\n    },\n    {\n      \"term\": \"psychoacoustics\"\n    }\n  ],\n  \"related_identifiers\": [\n    {\n      \"identifier\": \"https://github.com/nemarDatasets/on004256\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.18112/openneuro.ds004256.v1.0.5\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDerivedFrom\"\n    },\n    {\n      \"identifier\": \"https://nemar.org/dataset/on004256\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    }\n  ],\n  \"resource_type_general\": \"Dataset\",\n  \"resource_type_specific\": \"Neuroimaging Dataset\",\n  \"modalities\": [\n    \"beh\",\n    \"eeg\"\n  ],\n  \"sizes\": [\n    \"19.5 GB (160 files)\"\n  ],\n  \"formats\": [\n    \".eeg\",\n    \".json\",\n    \".md\",\n    \".tsv\",\n    \".vhdr\",\n    \".vmrk\",\n    \".yml\"\n  ],\n  \"source_hash\": \"293140943224f016f93f25697bdb5b23344672bc40ce47e63eaad07e6b1e45cf\"\n}","last_activity_at":"2026-06-23 19:31:50","source":"openneuro","source_id":"ds004256","subject_count":53,"modalities":"beh,eeg","age_min":20,"age_max":31,"file_size":19516274613,"total_files":588,"tasks":"deviantdetection,loctest,oneback","metadata_columns_error":null,"staleness_warn_stage":null,"staleness_admin_notified_at":null,"authors":"Ole Bialas, Marc Schoenwiesner, Burkhard Maess","license":"CC0","readme":"[![DOI](https://img.shields.io/badge/DOI-10.82901%2Fnemar.on004256-blue)](https://doi.org/10.82901/nemar.on004256)\n\n# Overview\nThe dataset consists of data from two experiments in which subjects were presented bursts of noise from loudspeakers at different elevations. Subjects who participated in either experiment were initially tested in their ability to localize elevated sound sources. Both experiments were conducted in a hemi-anechoic chamber.\n\n# Localization Tests\nBursts of pink noise were presented from loudspeakers at different elevations and 10° azimuth (to the listeners right). In the localization test preceding experiment I, these loudspeakers were positioned at elevations of +50°, +25°, 0° and -25° while the localization test preceding experiment II also included a loudspeaker at -50° elevation. Localization test data is missing for sub-001, sub-002 and sub-003\n\n# Deviant Detection (Experiment 1)\nSubjects 001-023 participated in this experiment. Subjects heard a long trail of noise from one loudspeaker (adapter), followed by a short burst of noise from another loudspeaker (probe). The elevation of the adapter and probe are encoded in the event values:\n2: adapter at 37.5°, probe at 12.5°\n3: adapter at 37.5°, probe at -12.5°\n4: adapter at 37.5°, probe at -37.5°\n5: adapter at -37.5°, probe at 37.5°\n6: adapter at -37.5°, probe at 12.5°\n7: adapter at -37.5°, probe at -12.5°\n8: no adapter, any non-target location (deviant)\nThe behavioral data contains the trial numbers where a deviant was presented and weather the subject responded within one second by pressing a button.\n\n# One-Back (Experiment II)\nSubjects 100-129 participated in this experiment. Subjects heard a long trail of white noise through open headphones followed by a short burst of noise from one of the loudspeakers. The loudspeaker's elevation is encoded in the event values:\n1: 37.5°, 2: 12.5°, 3:-23.5°, 4:-37.5°\nRoughly five percent of trials were targets where subjects heard a beep after the trial, prompting them to localize the previously heard sound. The number of those target trials, as well as the target's elevation and the subject's response can be found in thee behavioral data.\n","bids_version":"1.6.0","sessions_count":null,"publish_date":null,"embedding_dirty":0,"license_tier":"public","zarr_status":"ready","zarr_converted_at":"2026-08-05 15:15:30","zarr_store_count":53,"zarr_index_etag":"42a64b03e5355fbec512036f5e3861ac","zarr_source_commit":"75ed36a9526a75207f5b9bef12fd37b98020efea","archive_status":"ready","archive_size":10261725033,"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":0,"n_channels":64,"electrode_system":"other","has_hed":0,"hed_version":null,"is_exemplar":0,"bytes_present":19511815108,"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":152413.4400000001,"recording_duration_min":1968,"recording_duration_max":3930.36,"recording_count":53,"recordings_unavailable":0,"recordings_measured":53,"channel_count_min":64,"channel_count_max":64,"sampling_frequency":500,"power_line_frequency":null,"eeg_reference":null,"placement_scheme":null,"sweep_stamps":"{\"enrichment_updated_at\":\"2026-08-19 16:11:58\",\"metadata_updated_at\":\"2026-08-19 16:12:14\",\"archive_checked_at\":\"2026-06-23 19:54:42\",\"zarr_checked_at\":null,\"records_checked_at\":\"2026-06-23 19:43:22\",\"citations_updated_at\":null,\"channel_montage_checked_at\":\"2026-06-28 23:21:50\",\"hed_checked_at\":\"2026-06-30 04:54:51\",\"data_checked_at\":\"2026-08-08 03:00:47\",\"availability_report_at\":\"2026-07-23 01:17:39\",\"recording_stats_at\":\"2026-09-02 11:32:40\",\"signal_defaults_at\":\"2026-09-02 12:09:18\"}","participants":53,"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":"18.18 GB","zarr_data_failures":null,"zarr_index_url":"https://zarr.nemar.org/on004256/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}}