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Related Experiment Video

Updated: Jun 3, 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

Stimulus-driven orienting of visuo-spatial attention in complex dynamic environments.

Davide Nardo¹, Valerio Santangelo, Emiliano Macaluso

¹Neuroimaging Laboratory, Santa Lucia Foundation, Rome, Italy. davidenardo@gmail.com

|March 9, 2011

Summary

This study explored how stimulus-driven spatial attention works in realistic virtual environments. It found that the effectiveness of attention-grabbing signals impacts brain activity in both dorsal and ventral attention systems.

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Last Updated: Jun 3, 2026

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Measurement of Neurophysiological Signals of Ignoring and Attending Processes in Attention Control

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Published on: July 5, 2015

Area of Science:

Cognitive Neuroscience
Neuroimaging

Background:

Everyday attention operates in complex environments, unlike simplified lab settings.
Understanding stimulus-driven spatial attention is key to real-world cognition.

Purpose of the Study:

Investigate spatial attention using fMRI in a dynamic virtual environment.
Examine the influence of bottom-up signals on attention.
Parameterize the efficacy of attention-grabbing signals.

Main Methods:

Used fMRI to study brain activity during a virtual reality task.
Computed saliency maps to quantify environmental bottom-up signals.
Measured eye movements to parameterize attention orienting efficacy.
Analyzed imaging data using behavioral parameters.

Main Results:

Bottom-up signal efficacy modulated activity in dorsal fronto-parietal regions.
Distinctive events and background salience differentially affected dorsal and ventral attention systems.
Transient activation of the ventral attention system was observed.

Conclusions:

Combining computational, behavioral, and imaging methods allows studying cognition in ecologically valid contexts.
The efficacy of stimulus-driven signals plays a crucial role in both dorsal and ventral attention networks.
Dissociation observed in how background salience and distinctive events engage attention systems.