title: Volumetric hemispheric ratio as a useful tool in personality psychology.
abstract: The present study investigates the link between volumetric hemispheric ratios (VHRs) and personality measures in N=267 healthy participants using Eysenck's Personality Inventory-Revised (EPQ-R) and the BIS/BAS scales. A robust association between extraversion and VHRs was observed for gray matter in males but not females. Higher gray matter volume in the left than in the right hemisphere was associated with higher extraversion in males. The results are discussed in the context of positive emotionality and laterality of the human brain.
authors.affiliation: Department of Psychology, University of Bonn, Germany. christian.montag@uni-bonn-diff.de
authors.forename: Christian
authors.initials: C
authors.lastname: Montag
authors.forename: Jan-Christoph
authors.initials: JC
authors.lastname: Schoene-Bake
authors.forename: Jan
authors.initials: J
authors.lastname: Wagner
authors.forename: Martin
authors.initials: M
authors.lastname: Reuter
authors.forename: Sebastian
authors.initials: S
authors.lastname: Markett
authors.forename: Bernd
authors.initials: B
authors.lastname: Weber
authors.forename: Carlos M
authors.initials: CM
authors.lastname: Quesada
mesh_terms: D000328:Adult; D001921:Brain / Q000502:physiology; D005120:Extraversion, Psychological; D005260:Female; D006801:Humans; D008297:Male; D010551:Personality / Q000502:physiology*; D012737:Sex Factors; D055815:Young Adult