Eligibility
Participants must have normal, or corrected-to-normal (e.g., glasses, or contacts), visual acuity.
Purpose
The purpose of this study is to understand processes of visual perception in humans that allow us to see objects and their properties, spatial arrangements, and events occurring through information in light reflected to the eyes.
Involvement
The experiment will take place in person at the UCLA Human Perception Laboratory. The experiment is one session lasting 35 – 60 minutes, including occasional rest breaks.
If you agree to participate, your task will consist of responding to items presented on a computer from the comfort of a chin rest. Items involve visual classification of simple shapes, patterns, or pictures. You will be asked to respond to the displays by using the keyboard. The types of responses may include matching (does this item look like the one you just saw), detection (did you see a specific item in this display), or identification/classification (what type of item did you see). Some of these tasks are difficult, and you are not expected to always know the correct answer.
The study may begin with a short assessment the occurs before the main task. When the task is complete, you may be asked to do another short assessment.
Benefits
Participants will be compensated at the rate of $15 per session in the form of a prepaid Visa gift card. The data you provide will help vision scientists learn about how humans develop representations of objects in their environments.
Contact
If you are interested in participating in the contour detection study, please reach out to the primary researcher by email at asphillips@g.ucla.edu
- PI: Phil Kellman
- IRB Number: 21-001297
- IRB Expire Date: January 1, 2026