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通过破坏右前额叶皮层来削弱互惠公平
Daria Knoch1, Alvaro Pascual-Leone, Kaspar Meyer
1Institute for Empirical Research in Economics, University of Zurich, Blümlisalpstrasse 10, 8006 Zurich, Switzerland. dknoch@iew.unizh.ch
概括
右背侧前额皮层 (DLPFC) 对于实现公平至关重要. 扰乱这个大脑区域会减少惩罚不公平行为的意愿,即使公平判断仍然完好无损.
科学领域:
- 神经科学是一个神经科学.
- 行为经济学是一种行为经济学.
- 社会心理学 社会心理学
背景情况:
- 人类表现出相互公平,以个人经济代价惩罚不公平的行为.
- 实现公平和克制自我利益的基础的神经机制尚未得到充分理解.
- 终极通游戏是研究公平性和拒绝不公平报价的关键范式.
研究的目的:
- 研究背侧前额皮质 (DLPFC) 在实现公平性方面的作用.
- 为了确定是否破坏右或左DLPFC影响拒绝不公平的报价.
主要方法:
- 低频重复性横磁性刺激 (rTMS) 用于破坏右和左DLPFC.
- 在DLPFC刺激后,受试者参与了经过修改的终结论游戏.
- 记录了公平性判断和报价拒绝率.
主要成果:
- 右翼DLPFC的破坏,但左翼没有,显著降低了拒绝不公平报价的意愿.
- 被侵犯DLPFC权利的受试者更有可能接受不公平的报价,这表明自我控制能力降低.
- 尽管拒绝减少了,但受试者仍然认为不公平的报价是非常不公平的,将判断与行为分开.
结论:
- 正确的DLPFC对于通过优先考虑经济利益来实现公平至关重要.
- 这个大脑区域在将公平判断转化为昂贵的惩罚行为中发挥着关键作用.
- 研究结果突出了人类公平性和抵制自私动机的能力的神经基础.
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