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the claim

Personality traits are physically encoded in brain structure and function

the verdict
SUPPORTED
the evidence backs this
Recorded sources
5 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Multiple neuroimaging studies demonstrate that human and animal personality traits consistently correlate with specific variations in brain structure, gray matter volume, and neural circuitry.

The analysis

The retrieved papers consistently provide empirical support for the claim that personality traits have measurable neuroanatomical correlates in brain structure and function, spanning both human and animal models across multiple methodologies (structural MRI, fMRI, and volumetry).

Evidence for · 5
Neuroanatomical correlates of personality traits in temporal lobe epilepsy: Findings from the Epilepsy Connectome Project.
Recorded source metadata

Rivera Bonet CN, Hermann B, Cook CJ, Hwang G, Dabbs K, Nair V, Forseth C, Mathis J, Allen L, Almane DN, Arkush K, Birn R, Conant LL, DeYoe EA, Felton E, Humphries CJ, Kraegel P, Maganti R, Nencka A, Nwoke O, Raghavan M, Rozman M, Shah U, Sosa VN, Struck AF, Tellapragada N, Ustine C, Ward BD, Prabhakaran V, Binder JR, Meyerand ME. Neuroanatomical correlates of personality traits in temporal lobe epilepsy: Findings from the Epilepsy Connectome Project.. 2019. https://doi.org/10.1016/j.yebeh.2019.07.025

Demonstrates that core Big Five personality traits, particularly neuroticism, correlate with specific structural variations in cortical gray matter and limbic volumes.

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More for · 4
Neuroanatomical Correlates of Hierarchical Personality Traits in Chimpanzees: Associations with Limbic Structures
Recorded source metadata

Robert D. Latzman, Sarah T. Boysen, Steven J. Schapiro. Neuroanatomical Correlates of Hierarchical Personality Traits in Chimpanzees: Associations with Limbic Structures. 2018. https://doi.org/10.1017/pen.2018.1

Shows that hierarchical personality traits in chimpanzees are systematically associated with volumetric variations in the hippocampus.

Personality traits share overlapping neuroanatomical correlates with internalizing and externalizing psychopathology
Recorded source metadata

Courtland Hyatt, Max Michael Owens, Joshua Gray, NATHAN T CARTER, James MacKillop, Lawrence Sweet, Josh Miller. Personality traits share overlapping neuroanatomical correlates with internalizing and externalizing psychopathology. 2018. https://doi.org/10.31234/osf.io/he738

Finds that personality traits share overlapping neuroanatomical profiles and gray matter structures with psychopathology indices.

The Serial Effects of Callous-Unemotional Traits and Gray Matter Density in the Right Dorsomedial Prefrontal Cortex on Social Desirability.
Recorded source metadata

Li R, Xia LX. The Serial Effects of Callous-Unemotional Traits and Gray Matter Density in the Right Dorsomedial Prefrontal Cortex on Social Desirability.. 2025. https://doi.org/10.1002/pchj.70005

Identifies regional gray matter density in the right dorsomedial prefrontal cortex as a neural substrate underlying individual differences in personality-related traits.

Investigating the correlation between cortical lateralization and personality traits in young Chinese adults through structural magnetic resonance imaging.
Recorded source metadata

Fang J, Li J, Liu D, Liu C, Li Y, Zhu W, Tian T. Investigating the correlation between cortical lateralization and personality traits in young Chinese adults through structural magnetic resonance imaging.. 2025. https://doi.org/10.21037/qims-2025-271

Provides evidence that tridimensional personality traits are underpinned by corresponding anatomical structural bases and cortical asymmetry.

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first checked01 Aug 2026
judged → SUPPORTED · 8301 Aug 2026
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