Neuroanatomical variability of religiosity.

We hypothesized that religiosity, a set of traits variably expressed in the population, is modulated by neuroanatomical variability. We tested this idea by determining whether aspects of religiosity were predicted by variability in regional cortical volume. We performed structural magnetic resonance...

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Main Authors: Dimitrios Kapogiannis, Aron K Barbey, Michael Su, Frank Krueger, Jordan Grafman
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2009-09-01
Series:PLoS ONE
Online Access:https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0007180&type=printable
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author Dimitrios Kapogiannis
Aron K Barbey
Michael Su
Frank Krueger
Jordan Grafman
author_facet Dimitrios Kapogiannis
Aron K Barbey
Michael Su
Frank Krueger
Jordan Grafman
author_sort Dimitrios Kapogiannis
collection DOAJ
description We hypothesized that religiosity, a set of traits variably expressed in the population, is modulated by neuroanatomical variability. We tested this idea by determining whether aspects of religiosity were predicted by variability in regional cortical volume. We performed structural magnetic resonance imaging of the brain in 40 healthy adult participants who reported different degrees and patterns of religiosity on a survey. We identified four Principal Components of religiosity by Factor Analysis of the survey items and associated them with regional cortical volumes measured by voxel-based morphometry. Experiencing an intimate relationship with God and engaging in religious behavior was associated with increased volume of R middle temporal cortex, BA 21. Experiencing fear of God was associated with decreased volume of L precuneus and L orbitofrontal cortex BA 11. A cluster of traits related with pragmatism and doubting God's existence was associated with increased volume of the R precuneus. Variability in religiosity of upbringing was not associated with variability in cortical volume of any region. Therefore, key aspects of religiosity are associated with cortical volume differences. This conclusion complements our prior functional neuroimaging findings in elucidating the proximate causes of religion in the brain.
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spelling doaj-art-bd86345ae7d84da0923d57ca65acff0d2025-08-20T03:25:59ZengPublic Library of Science (PLoS)PLoS ONE1932-62032009-09-0149e718010.1371/journal.pone.0007180Neuroanatomical variability of religiosity.Dimitrios KapogiannisAron K BarbeyMichael SuFrank KruegerJordan GrafmanWe hypothesized that religiosity, a set of traits variably expressed in the population, is modulated by neuroanatomical variability. We tested this idea by determining whether aspects of religiosity were predicted by variability in regional cortical volume. We performed structural magnetic resonance imaging of the brain in 40 healthy adult participants who reported different degrees and patterns of religiosity on a survey. We identified four Principal Components of religiosity by Factor Analysis of the survey items and associated them with regional cortical volumes measured by voxel-based morphometry. Experiencing an intimate relationship with God and engaging in religious behavior was associated with increased volume of R middle temporal cortex, BA 21. Experiencing fear of God was associated with decreased volume of L precuneus and L orbitofrontal cortex BA 11. A cluster of traits related with pragmatism and doubting God's existence was associated with increased volume of the R precuneus. Variability in religiosity of upbringing was not associated with variability in cortical volume of any region. Therefore, key aspects of religiosity are associated with cortical volume differences. This conclusion complements our prior functional neuroimaging findings in elucidating the proximate causes of religion in the brain.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0007180&type=printable
spellingShingle Dimitrios Kapogiannis
Aron K Barbey
Michael Su
Frank Krueger
Jordan Grafman
Neuroanatomical variability of religiosity.
PLoS ONE
title Neuroanatomical variability of religiosity.
title_full Neuroanatomical variability of religiosity.
title_fullStr Neuroanatomical variability of religiosity.
title_full_unstemmed Neuroanatomical variability of religiosity.
title_short Neuroanatomical variability of religiosity.
title_sort neuroanatomical variability of religiosity
url https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0007180&type=printable
work_keys_str_mv AT dimitrioskapogiannis neuroanatomicalvariabilityofreligiosity
AT aronkbarbey neuroanatomicalvariabilityofreligiosity
AT michaelsu neuroanatomicalvariabilityofreligiosity
AT frankkrueger neuroanatomicalvariabilityofreligiosity
AT jordangrafman neuroanatomicalvariabilityofreligiosity