Structural equation modeling of the associations between amygdala activation, personality, and internalizing, externalizing symptoms of psychopathology

There is an expanding literature on the theoretical and empirical connections between personality and psychopathology, and their shared neurobiological correlates. Recent cybernetic theories of personality and psychopathology, as well as affective neuroscience theory, provide grounding for understan...

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Main Author: Craig S. Neumann
Format: Article
Language:English
Published: Cambridge University Press 2020-01-01
Series:Personality Neuroscience
Subjects:
Online Access:https://www.cambridge.org/core/product/identifier/S2513988620000085/type/journal_article
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author Craig S. Neumann
author_facet Craig S. Neumann
author_sort Craig S. Neumann
collection DOAJ
description There is an expanding literature on the theoretical and empirical connections between personality and psychopathology, and their shared neurobiological correlates. Recent cybernetic theories of personality and psychopathology, as well as affective neuroscience theory, provide grounding for understanding neurobiological–personality–psychopathology (NPP) associations. With the emergence of large sample datasets (e.g., Human Connectome Project) advanced quantitative modeling can be used to rigorously test dynamic statistical representations of NPP connections. Also, research suggests that these connections are influenced by sex, and large samples provide the opportunity to examine how NPP associations might be moderated by sex. The current study used a large sample from the Duke Neurogenetics Study (DNS) to examine how amygdala activation to facial expressions was linked with self-report of personality traits and clinical interviews of internalizing and externalizing symptoms of psychopathology. Structural equation modeling results revealed direct associations of amygdala activation with personality trait expression, as well as indirect associations (though personality) with symptoms of psychopathology. Moreover, the NPP links were moderated by sex. The current results are in line with research that identifies a broader role played by the amygdala in personality and provide potential insights for continued research in personality neuroscience and recent theories on the neurobiology of personality.
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spelling doaj.art-eb8d7974abe8474b9de04348381bbaa62023-03-09T12:43:12ZengCambridge University PressPersonality Neuroscience2513-98862020-01-01310.1017/pen.2020.8Structural equation modeling of the associations between amygdala activation, personality, and internalizing, externalizing symptoms of psychopathologyCraig S. Neumann0https://orcid.org/0000-0002-3825-2153Department of Psychology, University of North Texas, Denton, TX, USAThere is an expanding literature on the theoretical and empirical connections between personality and psychopathology, and their shared neurobiological correlates. Recent cybernetic theories of personality and psychopathology, as well as affective neuroscience theory, provide grounding for understanding neurobiological–personality–psychopathology (NPP) associations. With the emergence of large sample datasets (e.g., Human Connectome Project) advanced quantitative modeling can be used to rigorously test dynamic statistical representations of NPP connections. Also, research suggests that these connections are influenced by sex, and large samples provide the opportunity to examine how NPP associations might be moderated by sex. The current study used a large sample from the Duke Neurogenetics Study (DNS) to examine how amygdala activation to facial expressions was linked with self-report of personality traits and clinical interviews of internalizing and externalizing symptoms of psychopathology. Structural equation modeling results revealed direct associations of amygdala activation with personality trait expression, as well as indirect associations (though personality) with symptoms of psychopathology. Moreover, the NPP links were moderated by sex. The current results are in line with research that identifies a broader role played by the amygdala in personality and provide potential insights for continued research in personality neuroscience and recent theories on the neurobiology of personality.https://www.cambridge.org/core/product/identifier/S2513988620000085/type/journal_articleFive-factor modelPersonality traitsAmygdala activationExternalizing and internalizing psychopathologyStructural equation modeling (SEM)
spellingShingle Craig S. Neumann
Structural equation modeling of the associations between amygdala activation, personality, and internalizing, externalizing symptoms of psychopathology
Personality Neuroscience
Five-factor model
Personality traits
Amygdala activation
Externalizing and internalizing psychopathology
Structural equation modeling (SEM)
title Structural equation modeling of the associations between amygdala activation, personality, and internalizing, externalizing symptoms of psychopathology
title_full Structural equation modeling of the associations between amygdala activation, personality, and internalizing, externalizing symptoms of psychopathology
title_fullStr Structural equation modeling of the associations between amygdala activation, personality, and internalizing, externalizing symptoms of psychopathology
title_full_unstemmed Structural equation modeling of the associations between amygdala activation, personality, and internalizing, externalizing symptoms of psychopathology
title_short Structural equation modeling of the associations between amygdala activation, personality, and internalizing, externalizing symptoms of psychopathology
title_sort structural equation modeling of the associations between amygdala activation personality and internalizing externalizing symptoms of psychopathology
topic Five-factor model
Personality traits
Amygdala activation
Externalizing and internalizing psychopathology
Structural equation modeling (SEM)
url https://www.cambridge.org/core/product/identifier/S2513988620000085/type/journal_article
work_keys_str_mv AT craigsneumann structuralequationmodelingoftheassociationsbetweenamygdalaactivationpersonalityandinternalizingexternalizingsymptomsofpsychopathology