Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Depth Perception and Spatial Vision

Depth Perception and Spatial Vision

Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Detecting gaze shifts of moving observers in dynamic environments.

Behavior research methods·2026

Same author

Integrating along-tract profiling with fixel-based analysis for tract-specific characterization of white matter.

NeuroImage·2026

Same author

Transhemispheric optic pathway degeneration following unilateral post-geniculate lesions.

Brain communications·2026

Same author

Peripheral crowding is invariant under different luminance levels.

Vision research·2025

Same author

Towards Automated Classification of Visual Hallucination Presence in Psychosis using Resting-State fMRI.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2025

Same author

Pediatric eye movement-based perimetry: progress, pitfalls, and prospects.

Frontiers in ophthalmology·2025

Search research articles

Related Experiment Video

Updated: May 20, 2026

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition

Published on: July 21, 2020

Rapid assessment of peripheral visual crowding.

Dilce Tanriverdi¹, Frans W Cornelissen¹

¹Laboratory for Experimental Ophthalmology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands.

Frontiers in Neuroscience

|April 17, 2024

Summary

Eye movement-based methods, like serial search and 6-alternative forced-choice (AFC) paradigms, significantly speed up visual crowding assessments compared to manual responses. These efficient techniques may improve routine clinical evaluations for ophthalmic and neurological disorders.

Keywords:

adaptive psychophysics eye movements forced-choice paradigms peripheral vision psychophysical techniques serial search paradigm visual crowding

More Related Videos

Author Spotlight: Assessment of Visual Acuity in Central Vision Loss Through Motion-Based Peripheral Vision Testing

Author Spotlight: Assessment of Visual Acuity in Central Vision Loss Through Motion-Based Peripheral Vision Testing

Published on: February 23, 2024

Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss

Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss

Published on: April 11, 2025

Related Experiment Videos

Last Updated: May 20, 2026

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition

Published on: July 21, 2020

Author Spotlight: Assessment of Visual Acuity in Central Vision Loss Through Motion-Based Peripheral Vision Testing

Author Spotlight: Assessment of Visual Acuity in Central Vision Loss Through Motion-Based Peripheral Vision Testing

Published on: February 23, 2024

Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss

Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss

Published on: April 11, 2025

Area of Science:

Visual neuroscience
Ophthalmology
Psychophysics

Background:

Visual crowding hinders object discrimination in cluttered visual fields, impacting ophthalmic and neurological conditions.
Current psychophysical methods for assessing crowding are time-consuming and demanding, limiting routine clinical application.

Purpose of the Study:

To compare the efficiency of different paradigms for rapidly assessing peripheral visual crowding.
To evaluate trial-based Alternative Forced-Choice (AFC) and continuous serial search paradigms using eye movement versus manual responses.

Main Methods:

Participants performed orientation discrimination tasks with Gabor patches under varying crowding conditions.
Eye movement responses and manual responses (key press, mouse movement) were recorded across different AFC and serial search paradigms.
Adaptive psychophysics measured target orientation discrimination thresholds to quantify crowding magnitude.

Main Results:

Eye movement-based paradigms were faster than manual response paradigms for assessing peripheral visual crowding.
A novel serial search paradigm and an eye movement-based 6AFC paradigm demonstrated the highest efficiency for crowding assessment.
Crowding estimates were higher with serial search and 6AFC compared to 2AFC paradigms.
No significant difference in perceived task demand was reported between paradigms.

Conclusions:

Continuous serial search and 6AFC eye movement response paradigms offer rapid assessment of visual crowding.
These efficient methods hold potential for facilitating routine crowding assessments in clinical settings.
Further research is needed to evaluate the usability of these paradigms in specific patient populations and for particular clinical purposes.