Eye Movement Studies of Visual Search
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Healthy
- Sponsor
- Vanderbilt University
- Enrollment
- 50
- Locations
- 1
- Primary Endpoint
- Eye Tracking Data
- Status
- Withdrawn
- Last Updated
- last year
Overview
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.
Investigators
Thomas J. Palmeri
Distinguished Professor of Psychology
Vanderbilt University
Eligibility Criteria
Inclusion Criteria
- •Sona System users (open to the public)
Exclusion Criteria
- •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
Outcomes
Primary Outcomes
Eye Tracking Data
Time Frame: During 1-2 hour experimental session
Saccade Events, Fixation Events, Pupil Size
Response Data
Time Frame: During 1-2 hour experimental session
Response Time, Error Rate