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Updated: Sep 9, 2025
13:12
Translational Brain Mapping at the University of Rochester Medical Center: Preserving the Mind Through Personalized Brain Mapping
Published on: August 12, 2019
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Individual differences shape conceptual representation in the brain
Matteo Visconti di Oleggio Castello1,2, Tom Dupré la Tour1, Jack L Gallant1,2
1Helen Wills Neuroscience Institute, University of California, Berkeley; Berkeley, CA 94720, USA.
Biorxiv : the Preprint Server for Biology
|September 2, 2025
Summary
Scientists developed a new statistical framework to measure individual brain differences in conceptual representation. This approach reveals person-specific brain biases, paving the way for precision neuroscience and personalized medicine for cognitive disorders.
Area of Science:
- Cognitive Neuroscience
- Neuroimaging
- Individual Differences
Background:
- Individual experiences shape unique conceptual understanding, yet these differences are hard to measure in cognitive neuroscience.
- This limits precision medicine for cognitive disorders.
- Existing methods struggle to capture person-specific functional brain representations.
Purpose of the Study:
- To develop a novel statistical framework for measuring and interpreting individual differences in functional brain representations.
- To characterize how distinct individuals represent the same concepts in their brains.
- To establish a new paradigm for precision neuroscience.
Main Methods:
- Functional magnetic resonance imaging (fMRI) was used to measure brain activity in 24 participants listening to narrative stories.
- Encoding models were employed to decode conceptual representations from fMRI data.
- Statistical analysis was performed to identify systematic individual differences in these representations.
Main Results:
- Systematic, person-specific biases in conceptual brain representations were observed, despite identical stimuli.
- Individual variability was most pronounced in brain regions associated with social information processing.
- These differences correlate with the integration of sensory input and personal beliefs/experiences.
Conclusions:
- Individual differences in conceptual brain representations are systematic and measurable.
- The developed framework enables the study of person-specific functional brain maps.
- This research provides a foundation for precision neuroscience and fMRI applications in precision medicine for cognitive disorders.
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