A magnetoencephalography investigation of neural correlates for social exclusion and self-control
A magnetoencephalography investigation of neural correlates for social exclusion and self-control
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DOI：
10.1080/17470910601035160
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发表时间：
2006-06-01
影响因子：
2
通讯作者：
Clementz, Brett A.
中科院分区：
文献类型：
--
作者：
Campbell, W. Keith;Krusemark, Elizabeth A.;Clementz, Brett A.
过去的研究表明，社会排斥导致自我控制失败。本研究探讨了这种效应的神经底物。参与者被随机分配到社会排斥（n = 15）或控制（n = 15）条件。通过让参与者解决180个中等难度的数学问题来评估自我控制，同时测量他们识别提供的答案是正确还是错误的速度。脑磁图（MEG）被用来评估在这个任务的神经活动。社会排斥的参与者表现出较少的活动，枕叶和。顶叶皮层从100-350毫秒后提出的数学问题。当回答问题时，被社会排斥的参与者在刺激后100-300 ms的几个区域表现出较少的活动，包括枕叶，顶叶和右前额叶皮层。此外，顶叶和右前额叶皮层的激活介导了数学问题上的排除控制表现差异。研究结果表明，社会排斥会干扰注意力的执行控制，这种影响表现在认知表现和大脑功能的特定方面。
Past research indicates that social exclusion leads to self-control failure. The present research examined the neural substrates of this effect. Participants were randomly assigned to either a social exclusion (n = 15) or control (n = 15) condition. Self-control was assessed by having participants solve 180 moderately difficult math problems while measuring how quickly they identified a supplied answer as correct or incorrect. Magnetoencephalography (MEG) was used to assess neural activity during this task. Socially excluded participants showed lesser activity in occipital and. parietal cortex from 100-350 ms after the presentation of the math problems. When presented with the answers, socially excluded participants showed lesser activity in several regions, including occipital, parietal, and right prefrontal cortex from 100-300 ms post-stimulus. Furthermore, activation in the parietal and right prefrontal cortex mediated exclusion-control performance differences on math problems. The findings suggest that social exclusion interferes with the executive control of attention, and this effect is manifest in specific aspects of cognitive performance and brain function.