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Decreasing ventromedial prefrontal cortex deactivation in risky decision making after simulated microgravity: Effects of -6 degree head-down tilt bed rest
Rao, Lilin1; Zhou, Yuan1; Liang, Zhuyuan1; Rao, Henyi2; Sun, Yan1; Tan, Cheng3; Xiao, Yi3; Tian, Zhiqiang3; Chen, Xiaoping3; Wang, Chunhui3; Bai, Yanqiang3; Chen, Shanguang3; Li, Shu1
第一作者Rao, Lilin
2014
发表期刊Frontiers in Behavioral Neuroscience
通讯作者邮箱lishu@psych.ac.cn
ISSN1662-5153
卷号8期号:-页码:187
Q分类Q2
产权排序1
摘要

Space is characterized by risk and uncertainty. As humans play an important role in long-duration space missions, the ability to make risky decisions effectively is important for astronauts who spend extended time periods in space. The present study used the Balloon Analog Risk Task to conduct both behavioral and fMRI experiments to evaluate the effects of simulated microgravity on individuals' risk-taking behavior and the neural basis of the effect. The results showed that participants' risk-taking behavior was not affected by bed rest. However, we found that the ventromedial prefrontal cortex (VMPFC) showed less deactivation after bed rest and that the VMPFC activation in the active choice condition showed no significant difference between the win outcome and the loss outcome after bed rest, although its activation was significantly greater in the win outcome than in the loss outcome before bed rest. These results suggested that the participants showed a decreased level of value calculation after the bed rest. Our findings can contribute to a better understanding of the effect of microgravity on individual higher-level cognitive functioning.

关键词risk BART fMRI bed rest ventromedial prefrontal cortex
DOI10.3389/fnbeh.2014.00187
收录类别SCI
语种英语
WOS记录号WOS:000336793600001
引用统计
文献类型期刊论文
条目标识符http://ir.psych.ac.cn/handle/311026/25742
专题中国科学院行为科学重点实验室
通讯作者Li, Shu
作者单位1.Chinese Acad Sci, Inst Psychol, Key Lab Behav Sci, Magnet Resonance Imaging Res Ctr, Beijing 100101, Peoples R China
2.Sun Yat Sen Univ, Dept Psychol, Guangzhou 510275, Guangdong, Peoples R China
3.China Astronaut Res & Training Ctr, Beijing, Peoples R China
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Rao, Lilin,Zhou, Yuan,Liang, Zhuyuan,et al. Decreasing ventromedial prefrontal cortex deactivation in risky decision making after simulated microgravity: Effects of -6 degree head-down tilt bed rest[J]. Frontiers in Behavioral Neuroscience,2014,8(-):187.
APA Rao, Lilin.,Zhou, Yuan.,Liang, Zhuyuan.,Rao, Henyi.,Sun, Yan.,...&Li, Shu.(2014).Decreasing ventromedial prefrontal cortex deactivation in risky decision making after simulated microgravity: Effects of -6 degree head-down tilt bed rest.Frontiers in Behavioral Neuroscience,8(-),187.
MLA Rao, Lilin,et al."Decreasing ventromedial prefrontal cortex deactivation in risky decision making after simulated microgravity: Effects of -6 degree head-down tilt bed rest".Frontiers in Behavioral Neuroscience 8.-(2014):187.
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