Individualized prediction of trait narcissism from whole-brain resting-state functional connectivity

Human Brain Mapping
Chunliang FengYuejia Luo

Abstract

Narcissism is one of the most fundamental personality traits in which individuals in general population exhibit a large heterogeneity. Despite a surge of interest in examining behavioral characteristics of narcissism in the past decades, the neurobiological substrates underlying narcissism remain poorly understood. Here, we addressed this issue by applying a machine learning approach to decode trait narcissism from whole-brain resting-state functional connectivity (RSFC). Resting-state functional MRI (fMRI) data were acquired for a large sample comprising 155 healthy adults, each of whom was assessed for trait narcissism. Using a linear prediction model, we examined the relationship between whole-brain RSFC and trait narcissism. We demonstrated that the machine-learning model was able to decode individual trait narcissism from RSFC across multiple neural systems, including functional connectivity between and within limbic and prefrontal systems as well as their connectivity with other networks. Key nodes that contributed to the prediction model included the amygdala, prefrontal and anterior cingulate regions that have been linked to trait narcissism. These findings remained robust using different validation procedures. Our find...Continue Reading

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Citations

Sep 13, 2019·Journal of Child Psychology and Psychiatry, and Allied Disciplines·Jingwen JinAprajita Mohanty
Apr 6, 2020·Social Cognitive and Affective Neuroscience·Huanhuan CaiYongqiang Yu
Jan 12, 2019·Human Brain Mapping·Xiaping LuFrank Krueger
Oct 26, 2020·NeuroImage·Zhiting RenJiang Qiu
Jan 30, 2021·Cerebral Cortex·Zhihao WangPengfei Xu
Feb 22, 2021·Biological Psychiatry : Cognitive Neuroscience and Neuroimaging·Jingwen JinRoman Kotov
Jun 15, 2021·Personality Neuroscience·Emanuel Jauk, Philipp Kanske
Sep 2, 2021·Journal of Neuroimaging : Official Journal of the American Society of Neuroimaging·Oskar ZarnowskiGabriela Santos-Nunez

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