Neuroanatomical correlates of extraversion and neuroticism

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Paper (help)
Neuroanatomical correlates of extraversion and neuroticism
Authors: Christopher I. Wright, Danielle Williams, Eric Feczko, Lisa Feldman Barrett, Bradford C. Dickerson, Carl E. Schwartz, Michelle M. Wedig
Citation: Cerebral Cortex 16 (12): 1809-1819. 2006 December
Database(s): PubMed (PMID/16421327)
DOI: 10.1093/cercor/bhj118.
Link(s): http://cercor.oxfordjournals.org/cgi/content/abstract/16/12/1809
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Extract: Talairach coordinates from linked PDF: CSV-formated wiki-formated

Neuroanatomical correlates of extraversion and neuroticism report a structural neuroimaging study with magnetic resonance imaging on the personality traits neuroticism and extraversion.

The personality was assessed with NEO-FFI and cortical thickness was estimated with Freesurfer.

The group of researchers has also written a similar article with an elderly subject group: Neuroanatomical correlates of personality in the elderly.

Contents

[edit] Subjects

Subject group (help)
Right-handed subjects
Subjects/♂/♀: 28 / 11 / 17
Age: 24.0 ±2.9 (20–34)
Nationality: American
Approval: define approval
Databases:

A group of 28 right-handed subjects with 11 males and 17 females were included in the study. The American group had a mean age of 24.0 with a range from 20 to 34.

[edit] Results

The researchers looked on all 5 NEO-FFI factors but found only significant correlation for extraversion and neuroticism (page 1814).

The researchers also examined the amygdala volume for correlation with personality traits neuroticism and extraversion and found no significant correlation.

The neuroimages were linearly transformed to the Talairach atlas (page 1811, column 1). For this method the Whole brain segmentation: automated labeling of neuroanatomical structures in the human brain by Fischl and others, 2002 were cited.

P-value threshold were determined differently inside and outside prefrontal cortex (PFC): Both Bonferroni corrected with respect to the PFC or the whole brain, respectively.

[edit] Inverse correlation between cortical thickness and extraversion

Talairach coordinates in the text on pages 1812-1813.

Anatomy
BA
x
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No. vox
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1 Right inferior frontal cortex 45 44 23 20 Brede Database Brede Wiki NeuroSynth SumsDB Not available
2 Right middle frontal cortex 9 27 36 27 Brede Database Brede Wiki NeuroSynth SumsDB Not available
3 Right fusiform cortex 20 45 -20 -26 Brede Database Brede Wiki NeuroSynth SumsDB Not available

[edit] Inverse correlation between cortical thickness and neuroticism

One coordinate listed in text on page 1813.

Anatomy
BA
x
y
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No. vox
t
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Coordinate search
Plot
1 Left orbitofrontal cortex 10/11 -12 66 0 Brede Database Brede Wiki NeuroSynth SumsDB Not available
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