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Related Experiment Video

Updated: May 31, 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

Perceiving spatial relations via attentional tracking and shifting.

Alex O Holcombe¹, Daniel Linares, Maryam Vaziri-Pashkam

¹School of Psychology, University of Sydney, Sydney, NSW 2006, Australia. alex.holcombe@sydney.edu.au

Current Biology : CB

|June 28, 2011

Summary

This summary is machine-generated.

Perceiving object adjacency requires attentional selection. This process operates serially, not simultaneously, and is only possible at low object speeds for accurate spatial relationship judgments.

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Area of Science:

Cognitive Psychology
Visual Perception

Background:

Perceiving object adjacency may depend on limited-capacity attentional processes.
Previous research suggests attentional selection is involved but whether it's simultaneous or serial remains unclear.

Purpose of the Study:

To investigate whether attentional selection for adjacency perception operates simultaneously or serially.
To determine the effect of object speed on the ability to perceive spatial relationships.

Main Methods:

Participants viewed arrays of colored discs moving at varying speeds.
Tasks included identifying colors, array alignment, and adjacency perception.
Attention was cued to specific discs to analyze selection errors.

Main Results:

High speeds impaired adjacency perception, though color identification and alignment judgments were possible.
Error patterns indicated attention shifts serially between adjacent objects.
Adjacency perception failed when object speed exceeded attentional tracking limits.

Conclusions:

Perceiving object adjacency requires serial attentional selection, processing objects one by one.
This process is constrained by object speed, necessitating low speeds for accurate spatial relationship judgments.