How healthy adults look at faces and other images with their eyes

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study will examine how visual information about socially relevant stimuli affects the timing and direction of eye movements in healthy adults. Participants will undergo 5 to 10 visits over 2 to 4 months (potentially up to 25 visits) with up to 1 hour per visit, including an eye exam with pupil dilation as needed. They will complete simple tasks on a computer, responding to visual stimuli by pressing a button or guiding their gaze, while researchers measure saccadic trajectories and attention allocation. The primary goal is to determine how basic features of socially relevant images influence eye movement timing and trajectories, and how they shape selective visual attention. This study is focused on healthy volunteers to better understand normal visual processing.

Why it matters

Who can join: the full rules

* INCLUSION CRITERIA:

In order to be eligible to participate in this study, an individual must meet all of the following criteria:

* Stated willingness to comply with all study procedures and actively pay attention to visual stimuli and respond as appropriate.
* Participant has visual acuity of 20/25 or better in both eyes (or corrected to 20/25 or better).
* Participant must be 18 years old or older.
* Participant must understand and be willing to sign a written informed consent document.

EXCLUSION CRITERIA:

An individual who meets any of the following criteria will be excluded from participation in this study:

* Participant has an ocular, visual, or oculomotor problem that in the opinion of the Principal Investigator (PI) and/or clinical associate investigator would interfere with the participant s normal eye movements, visual perception, or required tasks.
* Participant has a history of eye patching (amblyopia or lazy eye).
* Participant has a non-ocular condition (e.g., neuropsychological conditions) that in the opinion of the PI and/or clinical associate investigator would interfere with the participant s normal eye movements or visual perception.

Where it's running

• National Institutes of Health Clinical Center
  Bethesda, Maryland, United States Recruiting

Study contacts

• Principal investigator: Rich J Krauzlis, Ph.D. — National Eye Institute (NEI)
• Study coordinator: Ines E Espinal-Supp
• Email: ines.espinal-supp@nih.gov
• Phone: (301) 496-9715

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.