Narcissistic personality traits and prefrontal brain structure

Abstract Narcissistic traits have been linked to structural and functional brain networks, including the insular cortex, however, with inconsistent findings. In this study, we tested the hypothesis that subclinical narcissism is associated with variations in regional brain volumes in insular and pre...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Igor Nenadić, Carsten Lorenz, Christian Gaser
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/bfa569ec70fb4ded9562c4c3a2a861a2
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:bfa569ec70fb4ded9562c4c3a2a861a2
record_format	dspace
spelling	oai:doaj.org-article:bfa569ec70fb4ded9562c4c3a2a861a22021-12-02T18:49:25ZNarcissistic personality traits and prefrontal brain structure10.1038/s41598-021-94920-z2045-2322https://doaj.org/article/bfa569ec70fb4ded9562c4c3a2a861a22021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94920-zhttps://doaj.org/toc/2045-2322Abstract Narcissistic traits have been linked to structural and functional brain networks, including the insular cortex, however, with inconsistent findings. In this study, we tested the hypothesis that subclinical narcissism is associated with variations in regional brain volumes in insular and prefrontal areas. We studied 103 clinically healthy subjects, who were assessed for narcissistic traits using the Narcissistic Personality Inventory (NPI, 40-item version) and received high-resolution structural magnetic resonance imaging. Voxel-based morphometry was used to analyse MRI scans and multiple regression models were used for statistical analysis, with threshold-free cluster enhancement (TFCE). We found significant (p < 0.05, family-wise error FWE corrected) positive correlations of NPI scores with grey matter in multiple prefrontal cortical areas (including the medial and ventromedial, anterior/rostral dorsolateral prefrontal and orbitofrontal cortices, subgenual and mid-anterior cingulate cortices, insula, and bilateral caudate nuclei). We did not observe reliable links to particular facets of NPI-narcissism. Our findings provide novel evidence for an association of narcissistic traits with variations in prefrontal and insular brain structure, which also overlap with previous functional studies of narcissism-related phenotypes including self-enhancement and social dominance. However, further studies are needed to clarify differential associations to entitlement vs. vulnerable facets of narcissism.Igor NenadićCarsten LorenzChristian GaserNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Igor Nenadić Carsten Lorenz Christian Gaser Narcissistic personality traits and prefrontal brain structure
description	Abstract Narcissistic traits have been linked to structural and functional brain networks, including the insular cortex, however, with inconsistent findings. In this study, we tested the hypothesis that subclinical narcissism is associated with variations in regional brain volumes in insular and prefrontal areas. We studied 103 clinically healthy subjects, who were assessed for narcissistic traits using the Narcissistic Personality Inventory (NPI, 40-item version) and received high-resolution structural magnetic resonance imaging. Voxel-based morphometry was used to analyse MRI scans and multiple regression models were used for statistical analysis, with threshold-free cluster enhancement (TFCE). We found significant (p < 0.05, family-wise error FWE corrected) positive correlations of NPI scores with grey matter in multiple prefrontal cortical areas (including the medial and ventromedial, anterior/rostral dorsolateral prefrontal and orbitofrontal cortices, subgenual and mid-anterior cingulate cortices, insula, and bilateral caudate nuclei). We did not observe reliable links to particular facets of NPI-narcissism. Our findings provide novel evidence for an association of narcissistic traits with variations in prefrontal and insular brain structure, which also overlap with previous functional studies of narcissism-related phenotypes including self-enhancement and social dominance. However, further studies are needed to clarify differential associations to entitlement vs. vulnerable facets of narcissism.
format	article
author	Igor Nenadić Carsten Lorenz Christian Gaser
author_facet	Igor Nenadić Carsten Lorenz Christian Gaser
author_sort	Igor Nenadić
title	Narcissistic personality traits and prefrontal brain structure
title_short	Narcissistic personality traits and prefrontal brain structure
title_full	Narcissistic personality traits and prefrontal brain structure
title_fullStr	Narcissistic personality traits and prefrontal brain structure
title_full_unstemmed	Narcissistic personality traits and prefrontal brain structure
title_sort	narcissistic personality traits and prefrontal brain structure
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/bfa569ec70fb4ded9562c4c3a2a861a2
work_keys_str_mv	AT igornenadic narcissisticpersonalitytraitsandprefrontalbrainstructure AT carstenlorenz narcissisticpersonalitytraitsandprefrontalbrainstructure AT christiangaser narcissisticpersonalitytraitsandprefrontalbrainstructure
_version_	1718377587609174016

Narcissistic personality traits and prefrontal brain structure

Ejemplares similares