How the risky features of previous selection affect subsequent decision-making: Evidence from behavioral and fMRI measures

Frontiers in Neuroscience

Xiaoxia eDu¹  Guangheng eDong³  Jiaojing eXu³  Xiao eLin³  Yifen eZhang³ 

[1] East China Normal University;Peking University;Zhejiang Normal University;

关键词: Decision Making;    fMRI;    risk-taking;    behavioral;    Prior risk experience;   

DOI  :  10.3389/fnins.2015.00364

来源: DOAJ

【 摘 要 】

Human decision making is rarely conducted in temporal isolation. It is often biased and affected by environmental variables, particularly prior selections. In this study, we used a task that simulates a real gambling process to explore the effect of the risky features of a previous selection on subsequent decision making. Compared with decision making after an advantageous risk-taking situation (Risk_Adv), that after a disadvantageous risk-taking situation (Risk_Disadv) is associated with a longer response time (RT, the time spent in making decisions) and higher brain activations in the caudate and the dorsolateral prefrontal cortex. Compared with decisions after Risk_Adv, those after Risk_Disadv in loss trials are associated with higher brain activations in the left superior temporal gyrus and the precuneus. Brain activity and relevant RTs significantly correlated. Overall, people who experience disadvantageous risk-taking selections tend to focus on current decision making and engage cognitive endeavors in value evaluation and in the regulation of their risk-taking behaviors during decision making.

【 授权许可】

Unknown