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Updated: Oct 15, 2025
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Modeling the Functional Network for Spatial Navigation in the Human Brain
Published on: October 13, 2023
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A distributed network supports spatiotemporal cerebral dynamics of visual naming
Brian Ervin1, Jason Buroker2, Anna W Byars3
1Comprehensive Epilepsy Center, Division of Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA; Department of Electrical Engineering and Computer Science, University of Cincinnati, Cincinnati, Ohio, USA.
Summary
This study maps the brain
Area of Science:
- Neuroscience
- Cognitive Neuroscience
- Epilepsy Research
Background:
- Visual naming is a complex cognitive process involving distributed brain networks.
- Understanding the spatiotemporal dynamics of these networks is crucial for both basic science and clinical applications, especially in epilepsy patients.
Purpose of the Study:
- To investigate the cerebral spatiotemporal dynamics of visual naming using stereo-electroencephalography (SEEG) in epilepsy patients.
- To delineate the brain networks involved in visual naming and their functional roles.
Main Methods:
- Utilized the Parcel-Activation-Resection-Symptom (PARS) matching approach.
- Analyzed high-gamma modulations (HGM) in neuroanatomic parcels during visual naming in 41 epilepsy patients.
- Correlated HGM patterns with post-surgical neuropsychological outcomes after parcel resection/ablation.
Main Results:
- Identified sequential, temporally overlapping HGM in neuroanatomic parcels during visual naming.
- Observed a progression from bilateral occipital lobes to left lateralization, through the limbic system, with specific temporal HGM patterns in superior temporal and frontal regions.
- Found correlations between resected parcels and post-surgical outcomes, indicating regional functional specificity.
Conclusions:
- Supported a model of visual naming comprising six overlapping cognitive subcomponents.
- Demonstrated that visual naming substrates are bilaterally distributed, with hemispheric contributions varying with cognitive demands.
- Highlighted the utility of the PARS approach for studying cognitive and functional brain networks.
Keywords:
Brain networksCortical localizationEpilepsy surgeryFunctional brain mappingIntracranial electrodesMore Related Videos
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