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Related Experiment Video

Updated: Sep 22, 2025

Methods to Test Visual Attention Online

Methods to Test Visual Attention Online

Published on: February 19, 2015

Behavior in a visual search task with moving dot stimuli.

Yelda Alkan¹, Koorosh Mirpour¹, James W Bisley^1,2,3

¹Department of Neurobiology, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States.

Journal of Neurophysiology

|May 18, 2022

Summary

This summary is machine-generated.

This study introduces a new visual search task to measure attention. Attentional cues improved performance by reducing reaction times and increasing sensitivity (d-prime), aiding future neural mechanism research.

Keywords:

attention behavior visual search

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

Published on: March 18, 2019

Area of Science:

Neuroscience
Cognitive Science
Behavioral Science

Background:

Understanding visual attention's neural basis requires precise behavioral tasks.
Existing paradigms may not fully isolate attentional effects.

Purpose of the Study:

Introduce and validate a novel visual search paradigm.
Investigate the behavioral impact of covert visual attention and set-size variations.
Provide a foundation for future neurophysiological studies on attention.

Main Methods:

Developed a visual search task with 1, 2, or 4 moving dot stimuli.
Incorporated covert visual attention using spatial and fixation point cues.
Analyzed behavior using reaction times and signal detection theory (d-prime, criteria).

Main Results:

Reaction times increased with larger set-sizes.
Attentional cues significantly reduced reaction times.
Increased set-size elevated criteria but not sensitivity (d-prime).
Attentional cues enhanced sensitivity (d-prime) with minor criteria changes.

Conclusions:

The developed task effectively measures behavioral effects of visual attention.
Animals employed consistent strategies, allowing for future neural investigations.
The task can differentiate neural mechanisms underlying changes in sensitivity versus criteria.