Zhu Yuyang, Wang Yituo, Chen Pinhong, Lei Yu, Yan Feng, Yang Zheng, Yang Liu, Wang Lubin
The Brain Science Center, Beijing Institute of Basic Medical Sciences, Beijing, 100850, China; Aviation Psychological Efficacy Laboratory, Air Force Medical Center, PLA, Air Force Medical University, Beijing 100142, China.
The Brain Science Center, Beijing Institute of Basic Medical Sciences, Beijing, 100850, China; Department of Radiology, Seventh Medical Center of the Chinese PLA General Hospital, Beijing 100700, China.
J Affect Disord. 2023 Nov 1;340:120-128. doi: 10.1016/j.jad.2023.08.038. Epub 2023 Aug 6.
Decision making under acute stress is frequent in daily life. While evidence suggests for a modulatory role of neuroticism on risky decision-making behaviors, the neural correlates underlying the association between neuroticism and risky decision-making under acute stress remain to be elucidated.
Based on a modified Balloon Analogue Risk Task (BART) with concurrent functional magnetic resonance imaging, we evaluated the effect of acute stress on risk-taking behavior in 27 healthy male adults, and further assessed stress-induced changes in brain activation according to the individual differences in neuroticism.
Higher trait neuroticism levels positively correlated with increased stress-modulated activation of the right dorsal anterior cingulate cortex during risk-taking, and negatively correlated with decreased stress-modulated activation of the right dorsolateral prefrontal cortex during cash-outs.
Only male participants were recruited.
We found a positive correlation between neuroticism and greater risk-taking behavior under acute stress. These results extend our understanding of the increased risk-taking propensity in high neurotic individuals under acute stress.
在日常生活中，急性应激下的决策很常见。虽然有证据表明神经质对风险决策行为具有调节作用，但急性应激下神经质与风险决策之间关联的神经机制仍有待阐明。
基于改良的气球模拟风险任务（BART）并同步进行功能磁共振成像，我们评估了急性应激对27名健康成年男性冒险行为的影响，并根据神经质的个体差异进一步评估了应激诱导的大脑激活变化。
较高的特质神经质水平与冒险过程中右侧背侧前扣带回皮质应激调节激活增加呈正相关，与兑现时右侧背外侧前额叶皮质应激调节激活减少呈负相关。
仅招募了男性参与者。
我们发现神经质与急性应激下更大的冒险行为之间存在正相关。这些结果扩展了我们对高神经质个体在急性应激下冒险倾向增加的理解。
