Ignite Creation Date:
2025-12-24 @ 2:02 PM
Ignite Modification Date:
2026-02-23 @ 5:37 AM
Study NCT ID:
NCT03741595
Status:
UNKNOWN
Last Update Posted:
2018-11-15
First Post:
2018-11-12
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
Visual Stimulus Competition
Sponsor:
Organization:
Raw JSON
{'hasResults': False, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}}, 'protocolSection': {'designModule': {'phases': ['NA'], 'studyType': 'INTERVENTIONAL', 'designInfo': {'allocation': 'NA', 'maskingInfo': {'masking': 'NONE'}, 'primaryPurpose': 'BASIC_SCIENCE', 'interventionModel': 'SINGLE_GROUP'}, 'enrollmentInfo': {'type': 'ESTIMATED', 'count': 10}}, 'statusModule': {'overallStatus': 'UNKNOWN', 'lastKnownStatus': 'ENROLLING_BY_INVITATION', 'startDateStruct': {'date': '2018-11-01', 'type': 'ACTUAL'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2018-11', 'completionDateStruct': {'date': '2019-11-01', 'type': 'ESTIMATED'}, 'lastUpdateSubmitDate': '2018-11-12', 'studyFirstSubmitDate': '2018-11-12', 'studyFirstSubmitQcDate': '2018-11-12', 'lastUpdatePostDateStruct': {'date': '2018-11-15', 'type': 'ACTUAL'}, 'studyFirstPostDateStruct': {'date': '2018-11-15', 'type': 'ACTUAL'}, 'primaryCompletionDateStruct': {'date': '2019-11-01', 'type': 'ESTIMATED'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'Detection probability', 'timeFrame': '2 hours', 'description': 'Ability to detect a target stimulus as a function of flanker proximity'}]}, 'oversightModule': {'oversightHasDmc': False, 'isFdaRegulatedDrug': False, 'isFdaRegulatedDevice': False}, 'conditionsModule': {'conditions': ['Visual Pathway Disorder']}, 'descriptionModule': {'briefSummary': 'In this study, we will use behavioral methods to investigate several types of interactions that occur when visual stimuli conflict, such as when objects are presented nearby to each other, or to separate eyes. We will target purely sensory aspects by using simple geometric shapes: letters and lines. Our outcome measure will be performance thresholds.', 'detailedDescription': 'Participants will be shown visual stimuli on displays and be asked to identify some aspect of the stimuli: their orientation and/or color, the existence of binocular suppression, etc.\n\nIn different blocks, stimuli will be manipulated in different ways to characterize basic aspects of visual processing. For example, the contrast, color, and/or spatial layout of stimuli will be varied.'}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['CHILD', 'ADULT', 'OLDER_ADULT'], 'healthyVolunteers': True, 'eligibilityCriteria': 'Inclusion Criteria:\n\n* Normal Vision\n* English language\n\nExclusion Criteria:\n\n* Less than 20/20 in either eye\n* Vision-affecting abnormalities (amblyopia, keratoconus, etc.)\n* Ortho-K lenses'}, 'identificationModule': {'nctId': 'NCT03741595', 'briefTitle': 'Visual Stimulus Competition', 'organization': {'class': 'OTHER', 'fullName': 'University of Houston'}, 'officialTitle': 'Visual Stimulus Competition', 'orgStudyIdInfo': {'id': 'STUDY00001197'}}, 'armsInterventionsModule': {'armGroups': [{'type': 'EXPERIMENTAL', 'label': 'Single Arm', 'interventionNames': ['Behavioral: Item spacing']}], 'interventions': [{'name': 'Item spacing', 'type': 'BEHAVIORAL', 'description': 'Spatial proximity of items to one another', 'armGroupLabels': ['Single Arm']}]}, 'contactsLocationsModule': {'locations': [{'zip': '77204', 'city': 'Houston', 'state': 'Texas', 'country': 'United States', 'facility': 'University of Houston, College of Optometry', 'geoPoint': {'lat': 29.76328, 'lon': -95.36327}}]}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'University of Houston', 'class': 'OTHER'}, 'responsibleParty': {'type': 'PRINCIPAL_INVESTIGATOR', 'investigatorTitle': 'Assistant Professor', 'investigatorFullName': 'Daniel R. Coates', 'investigatorAffiliation': 'University of Houston'}}}}