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Striatum gray matter reduction in males with an overactive behavioral activation system
Author(s) -
BarrósLoscertales A.,
Meseguer V.,
Sanjuán A.,
Belloch V.,
Parcet M. A.,
Torrubia R.,
Ávila C.
Publication year - 2006
Publication title -
european journal of neuroscience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.346
H-Index - 206
eISSN - 1460-9568
pISSN - 0953-816X
DOI - 10.1111/j.1460-9568.2006.05084.x
Subject(s) - ventral striatum , striatum , voxel based morphometry , psychology , voxel , gray (unit) , prefrontal cortex , reward system , neuroscience , dorsum , medicine , magnetic resonance imaging , dopamine , anatomy , nuclear medicine , cognition , white matter , radiology
Using optimized voxel‐based morphometry, we studied the relationship between gray matter volume in brain areas associated with reward and scores on a behavioral activation system measure (the Sensitivity to Reward scale) in a sample of 50 male undergraduates. Voxel‐based morphometry analysis revealed a negative correlation between Sensitivity to Reward scores and gray matter volume in the dorsal striatum and prefrontal cortex. Results indicate that a reduced volume in the striatum might be associated with enhanced reward sensitivity and deficits in inhibitory control.