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http://dx.doi.org/10.14695/KJSOS.2018.22.1.35

Altered Functional Connectivity of the Executive Control Network During Resting State Among Males with Problematic Hypersexual Behavior  

Seok, Ji-Woo (호남대학교 상담심리학과)
Publication Information
Science of Emotion and Sensibility / v.22, no.1, 2019 , pp. 35-44 More about this Journal
Abstract
Individuals with problematic hypersexual behavior (PHB) evince the inability to control sexual impulses and arousal. Previous studies have identified that these characteristics are related to structural and functional changes in the brain region responsible for inhibitory functions. However, very little research has been conducted on the functional connectivity of these brain areas during the resting state in individuals with PHB. Therefore, this study used functional magnetic resonance imaging devices with the intention of identifying the deficit of the functional connectivity in the executive control network in individuals with PHB during the resting state. Magnetic resonance imaging data were obtained for 16 individuals with PHB and 19 normal controls with similar demographic characteristics. The areas related to the executive control network (LECN, RECN) were selected as the region of interest, and the correlation coefficient with time series signals between these areas was measured to identify the functional connectivity. Between groups analysis was also used. The results revealed a significant difference in the strength of the functional connectivity of the executive control network between the two groups. In other words, decreased functional connectivity was found between the superior/middle frontal gyrus and the caudate, and between the superior/middle frontal gyrus and the superior parietal gyrus/angular gyrus in individuals with PHB. In addition, these functional Connectivities related to the severity of hypersexual behavior. The findings of this study suggest that the inability to control sexual impulses and arousal in individuals with PHB might be related to the reduced functional connectivity of executive control circuits.
Keywords
Problematic Hypersexual Behavior; Functional Magnetic Resonance Imaging; Executive Control Network; Functional Connectivity; Superior/Middle Frontal Gyrus;
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