Extrapunitive and intropunitive individuals activate different parts of the prefrontal cortex under an ego-blocking frustration.

Extrapunitive and intropunitive individuals activate different parts of the prefrontal cortex under an ego-blocking frustration.
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DOI:
10.1371/journal.pone.0086036
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发表时间:
2014
期刊:
影响因子:
3.7
通讯作者:
Osaka N
Osaka N
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Minamoto T;Osaka M;Yaoi K;Osaka N

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不同的人在面对挫折时会有不同的反应:有些人惩罚别人(外惩罚),有些人惩罚自己(内惩罚)。很少有研究调查的神经结构,区分外向惩罚和内向惩罚的个人。目前的功能磁共振成像研究探讨了这些神经结构使用两种不同的令人沮丧的情况:一个自我阻塞的情况下,阻止一个愿望或目标,和一个超自我阻塞的情况下,阻止自尊。在自我封闭条件下,额外惩罚组(n = 9)的双侧腹外侧前额叶皮层表现出更大的激活,表明这些人更喜欢情绪处理。  另一方面,内向惩罚组(n = 9)在左背外侧前额叶皮层表现出更大的激活,可能反映了一种努力控制愤怒的减少。  这种模式没有观察到在superego-blocking条件。这些结果表明,前额叶皮层是个体在自我封闭情境下攻击方向差异的来源。
Different people make different responses when they face a frustrating situation: some punish others (extrapunitive), while others punish themselves (intropunitive). Few studies have investigated the neural structures that differentiate extrapunitive and intropunitive individuals. The present fMRI study explored these neural structures using two different frustrating situations: an ego-blocking situation which blocks a desire or goal, and a superego-blocking situation which blocks self-esteem. In the ego-blocking condition, the extrapunitive group (n = 9) showed greater activation in the bilateral ventrolateral prefrontal cortex, indicating that these individuals prefer emotional processing. On the other hand, the intropunitive group (n = 9) showed greater activation in the left dorsolateral prefrontal cortex, possibly reflecting an effortful control for anger reduction. Such patterns were not observed in the superego-blocking condition. These results indicate that the prefrontal cortex is the source of individual differences in aggression direction in the ego-blocking situation.
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