title: Striatum gray matter reduction in males with an overactive behavioral activation system.
abstract: 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.
authors.affiliation: Department of Psychology, Campus Riu Sec, Faculty Ciencies Humanes i Socials, Universitat Jaume I, e-12071 Castelló, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Barrós-Loscertales
authors.forename: V
authors.initials: V
authors.lastname: Meseguer
authors.forename: A
authors.initials: A
authors.lastname: Sanjuán
authors.forename: V
authors.initials: V
authors.lastname: Belloch
authors.forename: M A
authors.initials: MA
authors.lastname: Parcet
authors.forename: R
authors.initials: R
authors.lastname: Torrubia
authors.forename: C
authors.initials: C
authors.lastname: Avila
mesh_terms: D000293:Adolescent; D000328:Adult; D003342:Corpus Striatum / Q000033:anatomy & histology* / Q000502:physiology*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D011569:Psychiatric Status Rating Scales; D012044:Regression Analysis; D012201:Reward