Brain and Cognition ( IF 2.5 ) Pub Date : 2021-04-15 , DOI: 10.1016/j.bandc.2021.105731 Hong He , Luming Hu , Xuemin Zhang , Jiang Qiu
Despite the dynamic property of consciousness, little research has explored the characteristic of the effort in trying to focus back, in which attention is shifted from mind wandering to ongoing activities. In the current study, we assessed the frequency of daily mind wandering, the pleasantness of daily mind wandering content, and the daily focus back effort of 69 participants, and then collected their resting-state functional magnetic resonance imaging (rsfMRI) scans. Our results revealed that (1) participants who experienced more daily pleasant mind wandering tended to have higher effort in trying to focus back than individuals with less pleasant mind wandering whereas there were no significant relations between pleasantness of mind wandering and mind wandering frequency or between focus back effort and mind wandering frequency in everyday life; (2) the pleasantness of mind wandering and focus back effort were associated with two functional connectivity that related to focus back episodes (right dorsolateral prefrontal cortex-right middle frontal gyrus, right inferior parietal - right middle frontal gyrus). The nodes forming these functional connections belonged to the executive network. Taken together, these findings support the content regulation hypothesis that humans maintain their minds wandering away from unpleasant topics by engaging in executive control processes.
中文翻译:
愉悦的心理漂流与日常生活中的后背精力正相关:来自静止状态功能磁共振成像的证据
尽管意识具有动态特性,但很少有研究探索试图集中注意力的努力的特征,即注意力从思维游荡转移到正在进行的活动上。在当前的研究中,我们评估了69位参与者的日常思维游荡频率,日常思维游荡内容的愉悦度以及每天的注意力集中精力,然后收集了他们的静止状态功能磁共振成像(rsfMRI)扫描。我们的研究结果表明:(1)每天经历更多愉悦心理游荡的参与者倾向于比没有愉悦心理游荡的个体更有力地尝试集中注意力,而愉悦心理与游荡频率或专注力之间没有显着关系。日常生活中的背部努力和思维游荡频率;(2)游荡的愉悦感和集中注意力的努力与与集中注意力发作有关的两个功能连接性相关(右背外侧前额叶皮层-右中额回,右下顶叶-右中额回)。形成这些功能连接的节点属于执行网络。综上所述,这些发现支持了内容调节假说,即人们通过参与执行控制程序来保持头脑从令人不快的话题上徘徊。形成这些功能连接的节点属于执行网络。综上所述,这些发现支持了内容调节假说,即人们通过参与执行控制程序来保持头脑从令人不快的话题上徘徊。形成这些功能连接的节点属于执行网络。综上所述,这些发现支持了内容调节假说,即人们通过参与执行控制程序来保持头脑从令人不快的话题上徘徊。