Eye Movements in Visual Search
- Conditions
- Healthy
- Interventions
- Behavioral: Target and Stimulus
- Registration Number
- NCT05472961
- Lead Sponsor
- Vanderbilt University
- Brief Summary
Using a noninvasive eye tracker, the investigators will measure how participants move their eyes to objects arrayed on a computer screen. Participants will be asked to find one element among many.
- Detailed Description
The investigators measure how quickly and how accurately participants can move their eyes from a central fixation point to a target object arrayed with one or more distractor objects. A noninvasive eye tracker will be used to measure their eye movements. Participants may also be asked to make a decision about a feature of the target they have selected with a key press. Difficulty of the search for the target object and difficulty of the decision about a feature of the target object will be manipulated.
Recruitment & Eligibility
- Status
- WITHDRAWN
- Sex
- All
- Target Recruitment
- 50
- Sona System users (open to the public)
- participants that fail the Ishihara color vision screening test
- participants with acuity worse than 20/20 with or without correction
- children under 18
- adults over 50
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- SINGLE_GROUP
- Arm && Interventions
Group Intervention Description Within Subjects Experimental Design Target and Stimulus All participants are tested in all conditions.
- Primary Outcome Measures
Name Time Method Eye Tracking Data During 1-2 hour experimental session Saccade Events, Fixation Events, Pupil Size
Response Data During 1-2 hour experimental session Response Time, Error Rate
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Vanderbilt University
🇺🇸Nashville, Tennessee, United States