Combination of resting-state and dynamic functional connectivity in evaluation of amygdala in subjects with internet gaming disorder
10.13929/j.1003-3289.201612107
- VernacularTitle:联合运用静息态及动态功能连接分析探讨杏仁核在网络游戏成瘾中的意义
- Author:
Xu HAN
;
Lei LI
;
Yao WANG
;
Yawen SUN
;
Weina DING
;
Wenqing JIANG
;
Yan ZHOU
- Keywords:
Amygdala;
Behavior,addictive;
Functional connectivity;
Magnetic resonance imaging
- From:
Chinese Journal of Medical Imaging Technology
2017;33(7):969-974
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the altered functional connectivity of the amygdala in adolescents with internet gaming disorder (IGD) using resting state functional connectivity (rsFC) and dynamic functional connectivity (dFC) analysis.Methods Thirty adolescents with IGD (IGD group) and 30 demographically matched healthy controls (HC group) were recruited.The right and left amygdala were selected as seed regions,the rsFC and dFC between 2 groups were calculated.The regions showing altered connectivity in IGD were adopted as ROIs for correlation analysis.Results Compared to HC group,IGD group had higher rsFC with the right amygdala over the right inferior temporal,middle temporal gyrus,middle frontal gyrus,lower rsFC with the right amygdala over the left inferior temporal,superior temporal and the right inferior occipital gyrus,superior occipital gyrus.The IGD group had lower rsFC with the left amygdala over the right rectal gyrus and thalamus.Compared to HC group,the IGD group showed higher dFC variance with the left amygdala over the right middle temporal and the left media frontal gyrus,and lower dFC variance over the right precuneus,inferior parietal lobe,posterior cingulate and the left postcentral gyrus.The IGD group showed higher dFC variance with the right amygdala over right middle frontal gyrus and lower dFC variance with the right amygdala over the right middle temporal,the left media frontal gyrus and paracingulate cortex,inferior parietal lobe.The rsFC between the left amygdala and right rectal gyrus was negatively correlated with Chinese Internet Addiction Scale (CIAS) scores.The dFC variance between the left amygdala over the left postcentral gyrus was positively correlated with CIAS scores.The dFC variance between the left amygdala and the right inferior parietal lobe were negatively correlated with CIAS scores.Conclusion The amygdala participates in the development of IGD.
