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Updated: Jul 8, 2026

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Correlating Behavioral Responses to fMRI Signals from Human Prefrontal Cortex: Examining Cognitive Processes Using Task Analysis
Published on: June 20, 2012
Brain activation patterns elicited by the 'Faces Symbol Test' -- a pilot fMRI study
Rh Grabner1, F Popotnig, S Ropele
1Institute of Psychology, University of Graz, Austria, Section of Neuroradiology, Department of Radiology, Medical University of Graz, Austria.
Summary
The Faces Symbol Test (FST) shows promise for screening cognitive issues in multiple sclerosis (MS). This study used fMRI to reveal the FST activates brain networks crucial for attention and executive functions, often affected in MS.
Area of Science:
- Neuroscience
- Cognitive Science
- Medical Imaging
Background:
- Cognitive dysfunction is common in multiple sclerosis (MS).
- The Faces Symbol Test (FST) is a new, patient-friendly screening tool for MS-related cognitive impairment.
- Neural correlates of the FST have not been previously studied.
Purpose of the Study:
- To develop a functional MRI (fMRI) version of the FST.
- To identify brain regions and networks engaged during FST performance.
- To provide initial neuroimaging data for the FST.
Main Methods:
- Developed an fMRI-compatible version of the FST.
- Recruited 19 healthy participants.
- Administered the FST in three conditions: full test, face matching, and symbol matching.
Main Results:
- Identified differential activation within a fronto-parieto-occipital network across the three FST conditions.
- The most challenging FST condition activated brain areas associated with sustained attention and executive control.
- Observed distinct neural patterns for face and symbol matching subcomponents.
Conclusions:
- The FST engages brain networks essential for higher-order cognitive functions.
- These findings support the FST's potential utility in assessing cognitive deficits in MS patients.
- The study provides the first neuroimaging evidence for the FST's neural underpinnings.

