Intelligence and Extraversion in the neural evaluation of delayed rewards
Intelligence and Extraversion in the neural evaluation of delayed rewards
复制标题
DOI：
10.1016/j.jrp.2016.02.006
复制
发表时间：
2016-04-01
影响因子：
3.3
通讯作者：
Rustichini, Aldo
中科院分区：
文献类型：
--
作者：
Civai, Claudia;Hawes, Daniel R.;Rustichini, Aldo
时间折扣（TD），即对早期较小奖励的偏好，而不是延迟较大奖励，是一种普遍现象，与大五人格特质和智力（IQ）相关。本研究通过识别TD偏好的神经表征中的IQ和外倾性的相关性提供了新的见解。一个跨期的选择任务，提供了顺序，区分一个评估阶段（第一个报价）和一个比较阶段（第二个报价和价值进行比较）。智商与尾状核的反应的主观价值的报价，这表明认知能力在调制奖励反应的作用。外向性与以腹内侧前额叶皮层为中心的奖励评价网络的功能连接强度相关。(C)2016 Elsevier Inc. All rights reserved.
Temporal discounting (TD), the preference for earlier, smaller rewards over delayed, larger rewards, is a pervasive phenomenon that covaries with Big Five personality traits and Intelligence (IQ). This study provides novel insight by identifying correlates for IQ and Extraversion in the neural representation of TD preferences. An intertemporal choice task was employed, where offers were sequentially presented, distinguishing between one evaluation phase (first offer is presented) and one comparison phase (second offer is presented and values are compared). IQ correlated with responses of caudate nucleus to the subjective values of the offers, suggesting a role of cognitive abilities in modulating reward responses. Extraversion correlated with the strength of functional connectivity of a reward evaluation network centered on ventromedial prefrontal cortex. (C) 2016 Elsevier Inc. All rights reserved.