NDLI: Linking novelty seeking and harm avoidance personality traits to basal ganglia: volumetry and mean diffusivity

Content Provider	Springer Nature Link
Author	Laricchiuta, Daniela Petrosini, Laura Piras, Fabrizio Cutuli, Debora Macci, Enrica Picerni, Eleora Chiapponi, Chiara Caltagirone, Carlo Spalletta, Gianfranco
Copyright Year	2013
Abstract	Novelty Seeking (NS) and Harm Avoidance (HA) temperamental traits are related to approaching or avoiding motivational circuits relying on the integrity and functionality of distributed brain areas implicated in arousal and action. The present study verified whether and how macro- and micro-structural variations of basal ganglia are correlated with scores obtained in the NS and HA temperamental scales of the Temperament and Character Inventory by Cloninger. To this aim, 125 healthy adults aged 18–67 years of both sexes completed the Temperament and Character Inventory and underwent a high-resolution T1-weighted magnetic resonance imaging and a diffusion tensor imaging using a 3T scanner. The scores obtained in the temperamental scales were associated with volumes, mean diffusivity and fractional anisotropy measures of basal ganglia of both hemispheres separately, by using linear regression analyses. We found increased bilateral caudate and pallidum volumes associated with higher NS scores, as well as increased mean diffusivity in the bilateral putamen associated with higher HA scores. Macro- and micro-structural variations of basal ganglia regions contribute to explain the biological variance associated with NS or HA personality phenotype. The present findings evidencing some brain-temperament relationships highlight the importance of obtaining macro- and micro-structural measures in relation to individual differences.
Starting Page	793
Ending Page	803
Page Count	11
File Format	PDF
ISSN	18632653
Journal	Anatomy and Embryology
Volume Number	219
Issue Number	3
e-ISSN	18632661
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-03-14
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Individual differences Brain volumes Mean diffusivity Fractional anisotropy Grey matter Neurosciences Cell Biology Neurology
Content Type	Text
Resource Type	Article
Subject	Neuroscience Anatomy Histology

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