The neural correlates of religious and nonreligious belief

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The neural correlates of religious and nonreligious belief
Authors: Sam Harris, Jonas T. Kaplan, Ashley Curiel, Susan Y. Bookheimer, Marco Iacoboni, Mark S. Cohen
Citation: PLoS ONE 4 (10): e7272. 2009
Database(s): PubMed (PMID/19794914)
DOI: 10.1371/journal.pone.0007272.
PMCID:2748718
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Extract:

The neural correlates of religious and nonreligious belief reports a functional magnetic resonance imaging study with religious and nonreligious subjects evaluating the truth and falsity of religious and nonreligious propositions.

The statements presented to the subjects were, e.g.,

  1. The Biblical God really exists.
  2. The Biblical God is a myth.
  3. Santa Claus is a myth.
  4. Santa Claus really exists.

Contents

[edit] Abstract from paper

[edit] Background

While religious faith remains one of the most significant features of human life, little is known about its relationship to ordinary belief at the level of the brain. Nor is it known whether religious believers and nonbelievers differ in how they evaluate statements of fact. Our lab previously has used functional neuroimaging to study belief as a general mode of cognition [1], and others have looked specifically at religious belief [2]. However, no research has compared these two states of mind directly.

[edit] Methodology/Principal Findings

We used functional magnetic resonance imaging (fMRI) to measure signal changes in the brains of thirty subjects—fifteen committed Christians and fifteen nonbelievers—as they evaluated the truth and falsity of religious and nonreligious propositions. For both groups, and in both categories of stimuli, belief (judgments of “true” vs judgments of “false”) was associated with greater signal in the ventromedial prefrontal cortex, an area important for self-representation [3], [4], [5], [6], emotional associations [7], reward [8], [9], [10], and goal-driven behavior [11]. This region showed greater signal whether subjects believed statements about God, the Virgin Birth, etc. or statements about ordinary facts. A comparison of both stimulus categories suggests that religious thinking is more associated with brain regions that govern emotion, self-representation, and cognitive conflict, while thinking about ordinary facts is more reliant upon memory retrieval networks.

[edit] Conclusions/Significance

While religious and nonreligious thinking differentially engage broad regions of the frontal, parietal, and medial temporal lobes, the difference between belief and disbelief appears to be content-independent. Our study compares religious thinking with ordinary cognition and, as such, constitutes a step toward developing a neuropsychology of religion. However, these findings may also further our understanding of how the brain accepts statements of all kinds to be valid descriptions of the world.

[edit] Results

The brain scans were processed and analyzed with FSL with registration to the MNI atlas and a statistical threshold set on a P=0.05 corrected for cluster size.

[edit] Belief versus disbelief

Table 1 with 4 coordinates [1]

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1 Left ventromedial prefrontal -4 50 -12 4.42 Brede Database Brede Wiki NeuroSynth SumsDB Not available
2 Left superior frontal gyrus -22 32 50 4.06 Brede Database Brede Wiki NeuroSynth SumsDB Not available
3 Left lateral occipital cortex -30 -82 16 3.19 Brede Database Brede Wiki NeuroSynth SumsDB Not available
4 Right lateral occipital cortex 44 -88 12 3.61 Brede Database Brede Wiki NeuroSynth SumsDB Not available

[edit] Disbelief minus belief

Table 2

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[edit] Religious minus nonreligious statement

Table 3

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[edit] Nonreligious minus Religious statements

Table 4

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[edit] Blasfemy

Table 5

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1 Right paracingulate gyrus 2 40 34 3.5 Brede Database Brede Wiki NeuroSynth SumsDB Not available
2 Right ventral striatum 14 16 0 3.52 Brede Database Brede Wiki NeuroSynth SumsDB Not available
3 Right ventral striatum 16 14 -8 3.61 Brede Database Brede Wiki NeuroSynth SumsDB Not available
4 Right middle frontal gyrus 46 30 34 4.32 Brede Database Brede Wiki NeuroSynth SumsDB Not available
5 Left middle frontal gyrus -48 36 22 3.07 Brede Database Brede Wiki NeuroSynth SumsDB Not available
6 Left frontal pole -36 64 2 3.77 Brede Database Brede Wiki NeuroSynth SumsDB Not available
7 Right frontal pole 32 64 4 4.5 Brede Database Brede Wiki NeuroSynth SumsDB Not available
8 Left inferior parietal lobe -42 -48 46 3.58 Brede Database Brede Wiki NeuroSynth SumsDB Not available
9 Right inferior parietal lobe 48 -48 46 3.39 Brede Database Brede Wiki NeuroSynth SumsDB Not available
Entry not completed (help)
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