[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100651821":3},{"organization":4,"armGroups":7,"interventions":18,"overallOfficials":29,"centralContacts":33,"locations":38,"responsibleParty":55,"collaborators":58,"id":64,"slug":65,"hasResults":66,"nctId":67,"briefTitle":68,"officialTitle":69,"acronym":24,"eligibilityCriteria":70,"healthyVolunteers":71,"sex":72,"minAge":73,"maxAge":74,"enrollmentInfo":75,"targetDuration":24,"studyType":78,"phases":79,"briefSummary":81,"conditions":82,"keywords":86,"overallStatus":41,"whyStopped":24,"lastUpdateSubmitDate":97,"lastUpdatePostDateStruct":98,"startDateStruct":101,"completionDateStruct":103,"leadSponsor":105,"locationsCount":106},{"fullName":5,"class":6},"University of South Florida","OTHER",[8,13],{"label":9,"type":6,"description":10,"interventionNames":11},"Bilateral Cochlear Implant Users","Adults with existing bilateral cochlear implants (implanted and using their devices for at least one year). Participants complete the discrimination and selective-attention auditory paradigms with manipulated spatial cues while combined EEG, fNIRS, and pupillometry are recorded. No fMRI is collected in this arm due to device safety concerns.",[12],"Device: Existing bilateral cochlear implants",{"label":14,"type":6,"description":15,"interventionNames":16},"Normal Hearing Controls","Adults with audiometrically confirmed normal hearing (thresholds within 20 dB HL of normal through 8 kHz). Participants complete three auditory attention paradigms (working memory, discrimination, selective attention) with manipulated spatial cues, under combined EEG, fNIRS, and pupillometry sessions and fMRI sessions.",[17],"Other: Normal Hearing Control",[19,25],{"type":20,"name":21,"description":22,"armGroupLabels":23,"otherNames":24},"DEVICE","Existing bilateral cochlear implants","Participants in this arm are recruited from a population who have existing bilateral cochlear implants. The implants are the participants' own clinical devices, used as clinically programmed; no investigational device or modification is provided by the study. Auditory attention tasks are presented with manipulated spatial cues (interaural time differences, interaural level differences, or HRTFs).",[9],null,{"type":6,"name":26,"description":27,"armGroupLabels":28,"otherNames":24},"Normal Hearing Control","Control group recruited from the normal hearing population. Participants perform the same auditory attention tasks with manipulated spatial cues (interaural time differences, interaural level differences, or HRTFs) under EEG\u002FfNIRS\u002Fpupillometry and fMRI.",[14],[30],{"name":31,"affiliation":5,"role":32},"Christopher A Brown, PhD","PRINCIPAL_INVESTIGATOR",[34],{"name":31,"role":35,"phone":36,"phoneExt":24,"email":37},"CONTACT","412-670-2772","cb43@usf.edu",[39],{"facility":40,"status":41,"city":42,"state":43,"zip":44,"country":45,"countryCode":46,"cosmosGeoPoint":47,"geoPoint":52,"contacts":53},"University of South Florida, PCD Building, Room 3008A","RECRUITING","Tampa","Florida","33620","United States","US",{"type":48,"coordinates":49},"Point",[50,51],-82.45843,27.94752,{"lat":51,"lon":50},[54],{"name":31,"role":35,"phone":36,"phoneExt":24,"email":37},{"type":32,"investigatorFullName":56,"investigatorTitle":57,"investigatorAffiliation":5,"oldNameTitle":24,"oldOrganization":24},"Christopher Brown","Associate Professor",[59,62],{"name":60,"class":61},"National Institute on Deafness and Other Communication Disorders (NIDCD)","NIH",{"name":63,"class":6},"Carnegie Mellon University","100651821","spatial-cues-task-demands-and-auditory-selective-attention-100651821",false,"NCT07765186","Spatial Cues, Task Demands, and Auditory Selective Attention","How Spatial Cues Support Communication: Interactions Between Auditory Spatial Features and Task Demands Across Cortical Networks","Inclusion Criteria:\n\n* Adults with normal hearing, confirmed by audiometric assessment (thresholds within 20 dB HL of normal through 8 kHz), OR adults with bilateral cochlear implants who have used their implants for at least one year\n* Native speakers of American English\n* Normal or corrected-to-normal vision\n\nExclusion Criteria:\n\n* Known neurological disorders\n* For fMRI sessions (normal-hearing participants only): contraindications to MRI scanning; cochlear implant users do not complete MRI sessions",true,"ALL","18 Years","90 Years",{"count":76,"type":77},80,"ESTIMATED","INTERVENTIONAL",[80],"NA","Understanding speech in restaurants and other noisy environments is the most common complaint from the more than 60 million Americans with hearing impairment. Succeeding in such environments requires a listener to first segregate sound sources and then selectively attend to the source of interest. This study examines how individual auditory spatial cues (interaural time differences and interaural level differences) support spatial selective attention, the cortical processes that underlie this ability, and how these processes are modulated by task demands. Participants with normal hearing and participants who use bilateral cochlear implants will perform listening tasks while brain and physiological responses are recorded (electroencephalography, functional near-infrared spectroscopy, pupillometry, and, for normal-hearing participants only, functional magnetic resonance imaging). The findings will provide new insights into the mechanisms of spatial selective attention and help guide clinical solutions for cochlear implant users, individuals with hearing impairment more generally, and older normal-hearing adults who have difficulty understanding speech in noisy environments.",[83,84,85],"Bilateral Cochlear Implants","Hearing Loss, Bilateral","Healthy",[87,88,89,90,91,92,93,94,95,96],"spatial hearing","auditory selective attention","interaural level difference","interaural time difference","cochlear implant","EEG","fNIRS","fMRI","pupillometry","speech in noise","2026-08-10",{"date":99,"type":100},"2026-08-14","ACTUAL",{"date":102,"type":100},"2025-10-22",{"date":104,"type":77},"2030-07",{"name":5,"class":6},1]