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1.
Brain Sci ; 12(11)2022 Nov 17.
Artículo en Inglés | MEDLINE | ID: mdl-36421884

RESUMEN

Scarcity goods have generally been perceived as high in value in real-world and empirical studies. However, few studies have investigated this value over time, such as performance in intertemporal decision making. This study's chief objective was to determine how scarcity evaluation changes temporally. We used the electroencephalogram technique and an outcome evaluation task with the valuation of scarcity and ordinary rewards delivered at different times to explore the effect of scarcity on delay discounting. The feedback-related negativity (FRN) results show that ordinary goods were associated with a more negative amplitude than scarcity goods, and that rewards delivered in the future evoked more negative deflection compared to those delivered immediately. The prominent FRN effect was derived mainly from ordinary trials rather than scarcity trials in the immediate condition and in the future rather than only in the immediate condition. The Frontal Asymmetry Index (FAI) results show that the scarcity condition was associated with greater relative left frontal cortical activity than the ordinary condition when delivered immediately. The frontal asymmetry indicated greater approach motivation. Our electrophysiology data indicate that scarcity goods have a perceived high value, particularly when delivered immediately.

2.
Healthcare (Basel) ; 8(4)2020 Nov 21.
Artículo en Inglés | MEDLINE | ID: mdl-33233385

RESUMEN

Purpose: Fewer studies are about the influence of psychopath traits on moral judgment and the underlying psychological mechanism in Chinese cultural background. In this paper, we use the creative CNI (Consequences, Norms, Inaction versus action) model to quantify the subject's reaction to moral dilemmas. Method: In this research, the Chinese version of the Levenson Psychopathic Scale, CNI model materials, and a multinomial model to further analyze the associations among the psychopathy characteristics and utilitarian moral judgment are applied. The CNI model is proposed by Gawronski et al., which can quantify the subjects' sensitivity to moral consequence, sensitivity to moral norms, and the general preference for inaction or action in moral dilemmas. Result: This study finds that there were significant differences in the utilitarian moral judgment between the groups, t (360) = 3.24, p = 0.001, and Cohen's d = 0.36. The analysis results of the CNI model show that the high psychopathy group on the N parameter was significantly lower than the group of low psychopathy, ΔG2 (2) = 79.70, p = 0.001. In terms of the C parameter, we found no significant distinctions between the two groups, ΔG2 (2) = 1.356, p = 0.244. For the I parameter, the two groups also have no significant differences, ΔG2 (2) = 0.093, p = 0.76. Conclusion: Persons with high psychopathy traits prefer to make more utilitarian moral judgments and have a weak sensitivity to moral norms (N). The sensitivity to consequences (C) of the two groups is no significant difference. The general preference for inaction versus action (I) also has no significant differences between those two groups. Moreover, the CNI model fits well in Chinese subjects.

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