{"dataset":{"id":"60161","dataset_id":"on005131","name":"Evoked responses to elevated sounds","description":"This dataset comprises EEG recordings from two experiments investigating evoked responses to sounds presented at varying elevations from loudspeakers in a hemi-anechoic chamber. In Experiment I, a deviant detection paradigm was used to examine responses to changes in sound source elevation between an adapter and probe stimulus. In Experiment II, a one-back task assessed elevation discrimination via white noise adaptation and localization judgments, including a subset of subjects tested with sound localization disrupted by ear molds. The dataset also includes behavioral localization test data for most subjects.","owner_user_id":15,"status":"active","github_repo":"nemarDatasets/on005131","concept_doi":"10.82901/nemar.on005131","latest_version_doi":"10.82901/nemar.on005131.v1.0.0","created_at":"2026-06-26 11:31:44","updated_at":"2026-08-19 02:01:10","zenodo_concept_id":null,"is_sandbox":0,"visibility":"public","ezid_status":"public","enrichment_json":"{\n  \"version\": \"2.0\",\n  \"pipeline_stage\": \"validated\",\n  \"title\": \"Evoked responses to elevated sounds\",\n  \"description\": \"This dataset comprises EEG recordings from two experiments investigating evoked responses to sounds presented at varying elevations from loudspeakers in a hemi-anechoic chamber. In Experiment I, a deviant detection paradigm was used to examine responses to changes in sound source elevation between an adapter and probe stimulus. In Experiment II, a one-back task assessed elevation discrimination via white noise adaptation and localization judgments, including a subset of subjects tested with sound localization disrupted by ear molds. The dataset also includes behavioral localization test data for most subjects.\",\n  \"methods_description\": \"Subjects were presented with bursts of pink or white noise from loudspeakers positioned at various elevations within a hemi-anechoic chamber. In Experiment I (deviant detection), subjects heard an adapter sound followed by a probe sound, with EEG and behavioral responses (button presses to deviants) recorded. In Experiment II (one-back task), subjects heard white noise through open headphones followed by a burst from a loudspeaker at a specific elevation, with target trials requiring localization judgments. A subset of subjects in Experiment II completed a second session with ear molds disrupting elevation perception.\",\n  \"license\": \"CC0\",\n  \"dataset_type\": \"raw\",\n  \"authors\": {\n    \"Ole Bialas\": {},\n    \"Marc Schoewiesner\": {}\n  },\n  \"keywords\": [\n    {\n      \"term\": \"EEG\"\n    },\n    {\n      \"term\": \"sound localization\"\n    },\n    {\n      \"term\": \"Auditory Perception\",\n      \"subject_scheme\": \"MeSH\",\n      \"value_uri\": \"http://id.nlm.nih.gov/mesh/D001307\"\n    },\n    {\n      \"term\": \"Evoked Potentials\",\n      \"subject_scheme\": \"MeSH\",\n      \"value_uri\": \"http://id.nlm.nih.gov/mesh/D005071\"\n    },\n    {\n      \"term\": \"elevation perception\"\n    },\n    {\n      \"term\": \"deviant detection\"\n    }\n  ],\n  \"related_identifiers\": [\n    {\n      \"identifier\": \"https://github.com/nemarDatasets/on005131\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"10.18112/openneuro.ds005131.v1.0.1\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDerivedFrom\"\n    },\n    {\n      \"identifier\": \"https://nemar.org/dataset/on005131\",\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    \"24.0 GB (193 files)\"\n  ],\n  \"formats\": [\n    \".eeg\",\n    \".json\",\n    \".md\",\n    \".sofa\",\n    \".tsv\",\n    \".vhdr\",\n    \".vmrk\",\n    \".yml\"\n  ],\n  \"source_hash\": \"649bfa5359ce1f01643fffde52b240308ea1c495dec0ba4fe4b03d284ac2dfa5\"\n}","last_activity_at":"2026-06-26 11:31:44","source":"openneuro","source_id":"ds005131","subject_count":58,"modalities":"beh,eeg","age_min":null,"age_max":null,"file_size":23996527310,"total_files":722,"tasks":"deviantdetection,loctest,oneback","metadata_columns_error":null,"staleness_warn_stage":null,"staleness_admin_notified_at":null,"authors":"Ole Bialas, Marc Schoewiesner","license":"CC0","readme":"[![DOI](https://img.shields.io/badge/DOI-10.82901%2Fnemar.on005131-blue)](https://doi.org/10.82901/nemar.on005131)\n\n# Overview\n\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.\nLocalization Tests\n\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)\n\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: 2: adapter at 37.5°, probe at 12.5° 3: adapter at 37.5°, probe at -12.5° 4: adapter at 37.5°, probe at -37.5° 5: adapter at -37.5°, probe at 37.5° 6: adapter at -37.5°, probe at 12.5° 7: adapter at -37.5°, probe at -12.5° 8: no adapter, any non-target location (deviant) The 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)\n\nSubjects 100-134 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: 1: 37.5°, 2: 12.5°, 3:-23.5°, 4:-37.5° Roughly 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.\nA subset (sub-130-134) participated in a second session of the experiment. This session was identical to the first task with the difference that the subjects had molds inserted that disrupted their ability to perceive sound elevation.\n","bids_version":"1.7.0","sessions_count":2,"publish_date":null,"embedding_dirty":0,"license_tier":"public","zarr_status":"ready","zarr_converted_at":"2026-08-19 11:08:31","zarr_store_count":63,"zarr_index_etag":"d72e5a211111d0b2ffbfffe2f5475906","zarr_source_commit":"981888725a2cb51b7ca95496713d24c47b998904","archive_status":"ready","archive_size":12582840466,"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":23988889902,"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":187327.18000000008,"recording_duration_min":1968,"recording_duration_max":3930.36,"recording_count":63,"recordings_unavailable":0,"recordings_measured":63,"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 02:00:49\",\"metadata_updated_at\":\"2026-08-19 02:01:09\",\"archive_checked_at\":\"2026-06-26 11:50:44\",\"zarr_checked_at\":null,\"records_checked_at\":\"2026-06-26 11:41:27\",\"citations_updated_at\":null,\"channel_montage_checked_at\":\"2026-06-28 23:38:34\",\"hed_checked_at\":\"2026-06-30 05:12:18\",\"data_checked_at\":\"2026-08-18 03:00:21\",\"availability_report_at\":\"2026-07-23 01:22:52\",\"recording_stats_at\":\"2026-09-02 11:33:10\",\"signal_defaults_at\":\"2026-09-02 12:25:26\"}","participants":58,"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":"22.35 GB","zarr_data_failures":null,"zarr_index_url":"https://zarr.nemar.org/on005131/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}}