Anterior insula activity predicts the influence of positively framed messages on decision making.
Anterior insula activity predicts the influence of positively framed messages on decision making.
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DOI：
10.3758/cabn.10.3.392
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发表时间：
2010-09
期刊：
影响因子：
--
通讯作者：
Brown JW
中科院分区：
文献类型：
--
作者：
Krawitz A;Fukunaga R;Brown JW
说服性信息影响决策的神经机制在很大程度上是未知的。我们使用事件相关功能磁共振成像来研究信息信息如何改变选择过程中的风险评估。参与者在执行爱荷华州赌博任务的同时，观看关于选项的正框架、负框架或控制信息。右前额叶与选择行为的改善相关，这是由于积极框架的信息，而不是消极框架的信息。当选择不太受欢迎的选项时，积极框架信息的激活与信息有效性成正比，这与预测不良结局的作用一致。此外，背内侧和左背外侧前额叶皮层与整体决策质量相关，无论消息类型。背内侧区介导了右前额叶与正框架信息决策质量之间的关系。这些发现表明，在决策过程中，额叶脑区域的网络将信息信息整合到选项的评估中。
The neural mechanisms underlying the influence of persuasive messages on decision making are largely unknown. We address this using event-related functional magnetic resonance imaging to investigate how informative messages alter risk appraisal during choice. Participants performed the Iowa Gambling Task while viewing a positively-framed, negatively-framed, or control message about the options. Right anterior insula correlated with improvement in choice behavior due to the positively-framed, but not the negatively-framed, message. With the positively-framed message there was increased activation proportional to message effectiveness when less-preferred options were chosen, consistent with a role in the prediction of adverse outcomes. In addition, dorsomedial and left dorsolateral prefrontal cortex correlated with overall decision quality regardless of message type. The dorsomedial region mediated the relationship between right anterior insula and decision quality with the positively-framed messages. These findings suggest a network of frontal brain regions that integrate informative messages into the evaluation of options during decision-making.