The importance of actions and the worth of an object: dissociable neural systems representing core value and economic value
The importance of actions and the worth of an object: dissociable neural systems representing core value and economic value
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DOI：
10.1093/scan/nsr036
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发表时间：
2012-06-01
影响因子：
4.2
通讯作者：
Sander, David
中科院分区：
文献类型：
--
作者：
Brosch, Tobias;Coppin, Geraldine;Sander, David
神经经济学研究描绘了参与价值计算的神经区域，指的是用于具体选择和决策的货币（“经济价值”）。另一方面，心理学和社会学的研究使用“价值”一词来描述在各种情况下指导选择和行为的动机结构（“核心价值”）。作为整合这些文献的第一步，我们比较了计算经济价值和核心价值的神经区域。重复以前的工作，经济价值计算激活了一个以内侧眶额皮层为中心的网络。核心价值的计算激活了内侧前额叶皮层（一个参与处理自我相关信息的区域）和背侧纹状体（参与行动选择）。核心价值评级与楔前叶和前额叶皮层的活动相关，可能反映了核心价值被视为自我概念内在化部分的程度。分布式激活模式允许区分各个核心价值类型。这些模式可以代表反映核心价值类型中表达的原型基本关注点的评估概况。我们的研究结果表明，核心价值观，作为激励重要的长期目标锚定在自我图式的机制，可能有行为的权力，以推动决策和行为的情况下，立即奖励的行为选择。
Neuroeconomic research has delineated neural regions involved in the computation of value, referring to a currency for concrete choices and decisions ('economic value'). Research in psychology and sociology, on the other hand, uses the term 'value' to describe motivational constructs that guide choices and behaviors across situations ('core value'). As a first step towards an integration of these literatures, we compared the neural regions computing economic value and core value. Replicating previous work, economic value computations activated a network centered on medial orbitofrontal cortex. Core value computations activated medial prefrontal cortex, a region involved in the processing of self-relevant information and dorsal striatum, involved in action selection. Core value ratings correlated with activity in precuneus and anterior prefrontal cortex, potentially reflecting the degree to which a core value is perceived as internalized part of one's self-concept. Distributed activation pattern in insula and ACC allowed differentiating individual core value types. These patterns may represent evaluation profiles reflecting prototypical fundamental concerns expressed in the core value types. Our findings suggest mechanisms by which core values, as motivationally important long-term goals anchored in the self-schema, may have the behavioral power to drive decisions and behaviors in the absence of immediately rewarding behavioral options.