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Related Experiment Video

Updated: Jan 18, 2026

Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity

Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity

Published on: March 18, 2019

Visual performance fields in saccadic suppression of image displacement.

Rosanne H Timmerman^1,2, Antimo Buonocore³, Alessio Fracasso^4,5

¹Psychology, School of Humanities, Social Sciences and Law, University of Dundee, Dundee, Scotland.

Experimental Brain Research

|September 11, 2025

Summary

This summary is machine-generated.

Visual perception varies across the visual field. This study found performance better horizontally than vertically, but no significant difference between upper and lower visual fields during fixation or saccades.

Keywords:

Anisotropies Eye movements Performance field SSID Saccade Saccadic suppression of image displacement

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Last Updated: Jan 18, 2026

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Published on: March 18, 2019

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Published on: April 11, 2025

Area of Science:

Neuroscience
Visual Perception
Oculomotor System

Background:

Visual perception exhibits known asymmetries, favoring the horizontal meridian and lower visual field.
These perceptual differences correlate with structural asymmetries in the early visual cortex.
The interplay between visual perception and eye movements (saccades) is crucial for scene exploration.

Purpose of the Study:

To investigate visual performance across different visual field locations during both fixation and saccades.
To compare performance in the upper versus lower visual field during saccadic eye movements.
To explore the influence of saccades on visual field asymmetries.

Main Methods:

Participants performed a target displacement detection task.
The task was conducted under both fixation and saccade conditions.
Performance was analyzed across horizontal and vertical meridians, and upper and lower visual fields.

Main Results:

Task performance was superior along the horizontal meridian compared to the vertical meridian under both fixation and saccade conditions.
No significant performance difference was observed between the lower and upper visual fields.
This held true for both fixation and saccade viewing conditions.

Conclusions:

While horizontal-vertical visual field asymmetries persist during saccades, the typical lower-upper visual field asymmetry is not robustly observed in this task.
Results suggest saccades may modulate or interact with established visual field anisotropies.
Findings contribute to understanding the perception-action cycle and visual field processing during eye movements.