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Updated: Mar 18, 2026

A Method for Investigating Age-related Differences in the Functional Connectivity of Cognitive Control Networks Associated with Dimensional Change Card Sort Performance

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Dynamic Changes in Cortical Effective Connectivity Underlie Transsaccadic Integration in Humans.

Henry Railo^1,2,3, Jarno Tuominen^1,2,3, Valtteri Kaasinen^3,4,5

¹Department of Psychology, University of Turku, FI-20014 Turku, Finland.

Cerebral Cortex (New York, N.Y. : 1991)

|July 2, 2016

Summary

Saccadic eye movements cause visual disruptions, yet our vision remains stable. This study reveals that brain communication changes *before* eye movements, limiting visual information access to maintain continuous vision.

Keywords:

effective connectivity saccadic eye movements saccadic suppression transsaccadic integration

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Dynamic Inter-subject Functional Connectivity Reveals Moment-to-Moment Brain Network Configurations Driven by Continuous or Communication Paradigms

Dynamic Inter-subject Functional Connectivity Reveals Moment-to-Moment Brain Network Configurations Driven by Continuous or Communication Paradigms

Published on: March 21, 2019

Area of Science:

Neuroscience
Cognitive Science
Vision Science

Background:

Saccadic eye movements cause rapid retinal image displacement.
Neural processing is modulated by saccades in local brain areas.
Inter-area communication during saccades in the thalamo-cortical system is poorly understood.

Purpose of the Study:

To investigate how saccades influence neural communication between brain areas.
To understand the mechanisms behind stable visual perception despite saccadic disruptions.

Main Methods:

Combined transcranial magnetic stimulation (TMS) with electroencephalography (EEG).
Measured dynamic changes in causal communication between human brain areas during saccades.

Main Results:

Saccades are accompanied by dynamic, anticipatory changes in brain communication.
Communication between posterior cortical areas is briefly enhanced during saccades.
Peri-saccadic information does not sustain activity in fronto-parietal cortices.

Conclusions:

The brain actively manages neural communication during saccades.
Restricting peri-saccadic visual information access to fronto-parietal areas contributes to stable vision.
Conscious vision is constructed from discrete fixations by modulating inter-area communication.