[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100587846":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":25,"eligibilityCriteria":74,"healthyVolunteers":75,"sex":76,"minAge":77,"maxAge":25,"enrollmentInfo":78,"targetDuration":25,"studyType":81,"phases":82,"briefSummary":84,"conditions":85,"keywords":89,"overallStatus":45,"whyStopped":25,"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",[20,26],{"type":21,"name":22,"description":23,"armGroupLabels":24,"otherNames":25},"BEHAVIORAL","Mixed trials","All tasks will be randomly mixed in a single block of 400 trials.",[15],null,{"type":21,"name":9,"description":27,"armGroupLabels":28,"otherNames":25},"Each search task will be presented in a block of trials.",[9],[30],{"name":31,"affiliation":5,"role":32},"Jeremy M Wolfe, PhD","PRINCIPAL_INVESTIGATOR",[34,38],{"name":31,"role":35,"phone":36,"phoneExt":25,"email":37},"CONTACT","6178511166","jwolfe@bwh.harvard.edu",{"name":39,"role":35,"phone":40,"phoneExt":25,"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","Boston","Massachusetts","02116","United States","US",{"type":52,"coordinates":53},"Point",[54,55],-71.05977,42.35843,{"lat":55,"lon":54},[58,59,61],{"name":39,"role":35,"phone":40,"phoneExt":25,"email":41},{"name":31,"role":35,"phone":60,"phoneExt":25,"email":37},"617-851-1166",{"name":31,"role":32,"phone":25,"phoneExt":25,"email":25},{"type":32,"investigatorFullName":31,"investigatorTitle":63,"investigatorAffiliation":5,"oldNameTitle":25,"oldOrganization":25},"Professor",[65],{"name":66,"class":67},"National Eye Institute (NEI)","NIH","100587846","mixed-vs-blocked-search-four-unique-tasks-100587846",false,"NCT06933693","Mixed Vs Blocked Search: Four Unique Tasks","Prevalence Effects in Visual Search: Theoretical and Practical Implications","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. 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]