Understanding Intermediate Visual Space Perception
This study, called "Intermediate Visual Space Perception," is looking for adults aged 18 to 40 with normal or corrected-to-normal vision (at least 20/20) and good stereo acuity (depth perception). The goal is to understand how our brains judge distances of objects between about 6 and 82 feet away, especially when we are moving. Researchers will use "Visual Stimuli for Space Perception" by changing visual environments, like target locations and backgrounds, and measuring how people judge distances. This will help us learn more about how our eyes and brains work together to understand space, which is important for everyday activities like walking and driving. The study aims to uncover the visual mechanisms involved in judging distance before and after movement.
- Study design
- This is an interventional study planning to enroll 180 participants. It is not specified if it is randomized or blinded.
- What's involved
- During the procedure, your visual mechanisms of space perception will be measured before and after self-motion, with each measurement lasting an average of 10 seconds.
- Compensation
- Not stated in the trial record.
- Follow-up
- Not specified.
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Intermediate Visual Space Perception
At a glance
Conditions
NCT05419713
Where you'd take part
This study runs at 1 site. They're the same protocol — you choose where, and that choice sets who your contact draft is addressed to.
University of Louisville
Louisville, Kentuckystudy coordinator listed
Recruiting
Sites open and close at different times, so the status above is per site — it can differ from the study's overall status.
Study leadership
- Zijiang He · PRINCIPAL_INVESTIGATOR · University of Louisville
Who to contact
Opens a ready-to-send draft in your own email app — review before sending.
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Inclusion
Exclusion
What this trial measures
- Visual mechanisms of intermediate distance space perception (distance) before and after self-motionDuring procedure, an average of 10 sec.
Subjects will judge perceived distances (cm) of test targets from themselves before self-motion to establish a baseline measure. Subjects will then undergo self-motion for an average of 10 sec, and stop at a predetermined location. Then subjects will again judge the perceived distance (cm) of test targets after the self-motion. The change in perceived distance (cm) from baseline will reveal if their perception is affected by environmental factors, internal perceptual process and/or cognitive process.
- Visual mechanisms of intermediate distance space perception (height) before and after self-motion.Druing procedure, an average of 10 sec.
Subjects will judge perceived heights (cm) of test targets relative to the floor or ceiling before self-motion to establish a baseline measure. Subjects will then undergo self-motion for an average of 10 sec, and stop at a predetermined location. Then subjects will again judge the perceived height (cm) of test targets after the self-motion. The change in perceived height (cm) from baseline will reveal if their perception is affected by environmental factors, internal perceptual process and/or cognitive process.