大脑后侧前额叶皮质受损 会让你变得“不诚实” 2014-09-19
咔唑网9月19日消息:

大脑后侧前额叶皮质受伤的患者更倾向于作出自私的决定,这是《自然—神经科学》上一项报告给出的结论。
Ming Hsu等人对大脑后侧前额叶皮质和眼窝前额皮质(这两种皮质位于前额后方的不同大脑区域)分别受损的两组患者进行了实验,并选取大脑未受损的人作为对照。实验对象被要求玩一个和别人合作分配钱财的游戏,在该游戏中,公平分配的决定和自私自利的决定会产生冲突。
研究人员发现,与其他两组相比,大脑后侧前额叶皮质受损的患者更容易对同伴撒谎从而让对方获得比自己少的收益。通过对结果进行建模处理,Hsu等人同时还得出结论:大脑后侧前额叶皮质正常情况下会让人更趋于诚实而非自私,这一区域的受伤会阻碍这种能力。
原文摘要:
Damage to dorsolateral prefrontal cortex affects tradeoffs between honesty and self-interest
Lusha Zhu, Adrianna C Jenkins, Eric Set, Donatella Scabini, Robert T Knight, Pearl H Chiu,Brooks King-Casas & Ming Hsu
Substantial correlational evidence suggests that prefrontal regions are critical to honest and dishonest behavior, but causal evidence specifying the nature of this involvement remains absent. We found that lesions of the human dorsolateral prefrontal cortex (DLPFC) decreased the effect of honesty concerns on behavior in economic games that pit honesty motives against self-interest, but did not affect decisions when honesty concerns were absent. These results point to a causal role for DLPFC in honest behavior.
【原标题:大脑后侧前额叶皮质受损 会让你变得“不诚实”】