[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100587881":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":29,"centralContacts":33,"locations":42,"responsibleParty":62,"collaborators":64,"id":68,"slug":69,"hasResults":70,"nctId":71,"briefTitle":72,"officialTitle":73,"acronym":24,"eligibilityCriteria":74,"healthyVolunteers":75,"sex":76,"minAge":77,"maxAge":24,"enrollmentInfo":78,"targetDuration":24,"studyType":81,"phases":82,"briefSummary":84,"conditions":85,"keywords":89,"overallStatus":45,"whyStopped":24,"lastUpdateSubmitDate":92,"lastUpdatePostDateStruct":93,"startDateStruct":96,"completionDateStruct":98,"leadSponsor":100,"locationsCount":101},{"fullName":5,"class":6},"Brigham and Women's Hospital","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Blocked Trials","EXPERIMENTAL","There are four search tasks in this experiment. Each task will be presented in a separate block of 100 trials",[13],"Behavioral: Blocked Trials",{"label":15,"type":10,"description":16,"interventionNames":17},"Mixed Trials","There are four search tasks in this experiment. All tasks will be randomly mixed in a single block of 400 trials.",[18],"Behavioral: Mixed trials",[20,25],{"type":21,"name":9,"description":22,"armGroupLabels":23,"otherNames":24},"BEHAVIORAL","Each search task will be presented in a block of trials.",[9],null,{"type":21,"name":26,"description":27,"armGroupLabels":28,"otherNames":24},"Mixed trials","All tasks will be randomly mixed in a single block of 400 trials",[15],[30],{"name":31,"affiliation":5,"role":32},"Jeremy M Wolfe, PhD","PRINCIPAL_INVESTIGATOR",[34,38],{"name":31,"role":35,"phone":36,"phoneExt":24,"email":37},"CONTACT","6178511166","jwolfe@bwh.harvard.edu",{"name":39,"role":35,"phone":40,"phoneExt":24,"email":41},"Cailey Tennyson, BA","617-525-3681","ctennyson1@bwh.harvard.edu",[43],{"facility":44,"status":45,"city":46,"state":47,"zip":48,"country":49,"countryCode":50,"cosmosGeoPoint":51,"geoPoint":56,"contacts":57},"Brigham & Women's Hospital","RECRUITING","Newton","Massachusetts","02458-2423","United States","US",{"type":52,"coordinates":53},"Point",[54,55],-71.20922,42.33704,{"lat":55,"lon":54},[58,59,61],{"name":31,"role":35,"phone":36,"phoneExt":24,"email":37},{"name":60,"role":35,"phone":40,"phoneExt":24,"email":41},"Cailey Tennyson, AB",{"name":31,"role":32,"phone":24,"phoneExt":24,"email":24},{"type":32,"investigatorFullName":31,"investigatorTitle":63,"investigatorAffiliation":5,"oldNameTitle":24,"oldOrganization":24},"Professor",[65],{"name":66,"class":67},"National Eye Institute (NEI)","NIH","100587881","experiment-2-one-target-in-many-situations-100587881",false,"NCT06934148","Experiment 2: One Target in Many Situations","Prevalence Effects in Visual Search: Theoretical and Practical Implications (H)","Inclusion Criteria:\n\n• Pass Ishihara color vision test\n\nExclusion Criteria:\n\n* vision less than 20\u002F25 with correction\n* history of neuromuscular or visual disorders",true,"ALL","18 Years",{"count":79,"type":80},40,"ESTIMATED","INTERVENTIONAL",[83],"NA","The goal is to look for qualitative differences in visual search behavior when one search is performed many times in a row compared to when multiple search tasks are intermixed. Four search tasks are tested. The target is the same in every task but the types of distractors change from task to task. In the Mixed condition, the four tasks are randomly changed from trial to trial. In the Blocked condition, each task is run as a block of 100 trials.",[86,87,88],"Vision","Healthy","Attention",[90,91],"visual search","visual attention","2025-04-17",{"date":94,"type":95},"2025-04-21","ACTUAL",{"date":97,"type":95},"2024-06-01",{"date":99,"type":80},"2029-06-30",{"name":5,"class":6},1]