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Related Experiment Video

Updated: May 22, 2026

Evaluating Tests of Cognition using a Computerized Touch-Sensitive Tablet, Eye Tracking, and Functional Magnetic Resonance Imaging

Evaluating Tests of Cognition using a Computerized Touch-Sensitive Tablet, Eye Tracking, and Functional Magnetic Resonance Imaging

Published on: January 30, 2026

A rigorous approach for testing the constructionist hypotheses of brain function.

Gopikrishna Deshpande¹, K Sathian, Xiaoping Hu

¹Auburn University MRI Research Center, Department of Electrical and Computer Engineering, and Department of Psychology, Auburn University, Auburn, AL 36849, USA. gopi@auburn.edu

The Behavioral and Brain Sciences

|May 24, 2012

Summary

This study proposes a new method to confirm brain region connectivity. It uses Granger causality and other models to validate connections between co-activated brain areas, moving beyond simple co-activation evidence.

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Area of Science:

Neuroscience
Cognitive Neuroscience
Brain Connectivity Research

Background:

The locationist view of brain function is challenged by existing evidence.
Evidence supporting the constructionist view remains inconclusive.
Co-activation of brain regions does not definitively prove direct connectivity.

Purpose of the Study:

To propose a rigorous methodology for assessing functional connectivity between co-activated brain regions.
To address the limitations of inferring connectivity solely from co-activation patterns.
To provide a robust framework for validating brain network interactions.

Main Methods:

Employing exploratory Granger causality to initially model connectivity between co-activated regions.
Utilizing dynamic causal modeling for confirmation of modeled connectivity.
Applying Bayesian modeling as an alternative or complementary method for confirmation.

Main Results:

The proposed approach offers a more definitive method for establishing brain region connectivity.
This methodology moves beyond correlational evidence to establish causal relationships.
The study provides a pathway to resolve ambiguities in interpreting co-activation data.

Conclusions:

The proposed rigorous approach enhances the reliability of functional connectivity findings.
This method provides a stronger basis for supporting or refuting models of brain function, such as the constructionist view.
Future research can utilize this framework to better understand brain network dynamics.