When I think about me and simulate you: Medial rostral prefrontal cortex and self-referential processes
When I think about me and simulate you: Medial rostral prefrontal cortex and self-referential processes
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DOI：
10.1016/j.neuroimage.2009.12.091
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发表时间：
2010-04-15
期刊：
影响因子：
5.7
通讯作者：
Burgess, Paul W.
中科院分区：
文献类型：
--
作者：
Benoit, Roland G.;Gilbert, Sam J.;Burgess, Paul W.
虽然神经影像学研究暗示内侧吻侧前额叶皮层（mrPFC）参与自我参照处理，但社会认知的模拟账户表明，该区域也支持对他人的思考。这项研究测试了预测，即mrPFC可能参与评估另一个人的人格特质，这个人被认为与自己相似的程度。我们还研究了招募思考自己和他人的共同过程是否会影响随后对这些判断的记忆。当两个因素交叉时使用功能性MRI：（i）参与人格特质或情景源记忆判断的要求和（ii）这些判断的参考（即，自己或朋友）。这些结果将mrPFC的血流动力学变化与对自己的个性判断和随后对这些判断的情景记忆提取联系起来。BOLD信号在这个区域的程度也与思考他人相关，与两项任务中的感知相似性相关，从而证实了模拟账户。此外，那些认为自己与朋友有相似特质的参与者往往更难记住他们是否对自己或朋友做出了特质判断。这种行为效应反映在mrPFC中的BOLD信号中：自我与朋友判断的信号变化与随后的记忆之间呈正相关。他的结果表明，在自我/他人判断的背景下，MrPFC活动的调查应考虑到这种心理相似性效应。(C)2010年爱思唯尔公司All rights reserved.
While neuroimaging studies implicate medial rostral prefrontal cortex (mrPFC) in self-referential processing, simulation accounts of social cognition suggest that this region also supports thinking about other people. This study tested the prediction that mrPFC might be involved in appraising the personality traits of another person to the degree that this person is perceived as similar to oneself. We also examined whether recruiting common processes for thinking about oneself and others might impact on subsequent memory for those judgments. Functional MRI was used while two factors were crossed: (i) the requirement to engage in personality trait or episodic Source memory judgments and (ii) the reference for these judgments (i.e., oneself or a friend). The results link haemodynamic changes in mrPFC to both personality judgments about oneself and subsequent episodic memory retrieval of these judgments. The degree to which BOLD signal in this region was also associated with thinking about others correlated with perceived similarity in both tasks, thus corroborating simulation accounts. Moreover, participants who perceived themselves as having similar traits to their friends tended to be poorer at remembering whether they had made trait judgments in reference to themselves or their friend. This behavioral effect was reflected in the BOLD signal in mrPFC: there was a positive correlation between signal change for self versus friend judgments and subsequent memory for the reference of such judgments. he results suggest that investigations Of MrPFC activity in the context of self/other judgments should take into account this psychological similarity effect. (C) 2010 Elsevier Inc. All rights reserved.