Dissociable brain networks involved in development of fairness considerations: Understanding intentionality behind unfairness
Dissociable brain networks involved in development of fairness considerations: Understanding intentionality behind unfairness
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DOI：
10.1016/j.neuroimage.2011.04.032
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发表时间：
2011-07-15
期刊：
影响因子：
5.7
通讯作者：
Crone, Eveline A.
中科院分区：
文献类型：
--
作者：
Guroglu, Berna;van den Bos, Wouter;Crone, Eveline A.
在这项功能性磁共振成像研究中，我们检测了大脑中对不公平分配做出反应的区域的发育变化。先前对成年人的研究表明，对不公平的反应不仅受分配本身的影响，还受提议者被认定的意图的影响。在当前的研究中，我们采用了迷你最后通牒博弈（Falk、Fehr和Fischbacher，2003年）来检测回应者对不同意图程度的不公平提议的行为。来自四个年龄组（10岁、13岁、15岁和20岁）的68名参与者在获取功能性磁共振成像数据的同时完成了这项任务。所有年龄的参与者在拒绝无意的不公平提议但接受有意的不公平提议时，双侧脑岛和背侧前扣带皮层（dACC）都有激活。拒绝无意的不公平提议还涉及颞顶联合区和背外侧前额叶皮层的激活随年龄增长而增加。这些发现为一个早期发育的脑岛 - 背侧前扣带皮层网络提供了证据，该网络参与检测个人规范违反行为，并且在社会推理中与意图考量相关的颞叶和前额叶脑区的参与逐渐增加。我们根据近期关于青少年社会脑网络发育的研究结果对这些结果进行了讨论。（C）2011爱思唯尔公司。保留所有权利。
In this functional magnetic resonance imaging study, we examined developmental changes in the brain regions involved in reactions to unfair allocations. Previous studies on adults suggested that reactions to unfairness are not only affected by the distribution itself but also by the ascribed intentionality of the proposer. In the current study, we employed the mini Ultimatum Game (Falk, Fehr, & Fischbacher, 2003) to examine responder behavior to unfair offers of varying degrees of intentionality. Sixty-eight participants from four age groups (10-, 13-, 15-, and 20-year-olds) carried out the task while fMRI data were acquired. Participants of all ages showed activation in the bilateral insula and dorsal anterior cingulate cortex (dACC) during rejection of unintentional but acceptance of intentional unfair offers. Rejection of unintentional unfair offers further involved increasing activation with age in the temporoparietal junction and the dorsolateral prefrontal cortex. These findings provide evidence for an early developing insula-dACC network involved in detecting personal norm-violations and gradually increasing involvement of temporal and prefrontal brain regions related to intentionality considerations in social reasoning. The results are discussed in light of recent findings on the development of the adolescent social brain network. (C) 2011 Elsevier Inc. All rights reserved.