Economic Decisions, Attractiveness, and Intrasexual Competition during Menstrual Cycle in the Ultimatum Game.

IF 1.2 4区 心理学 Q3 PSYCHOLOGY, MULTIDISCIPLINARY International Journal of Psychological Research Pub Date : 2023-01-01 DOI:10.21500/20112084.5919
Fraidy-Alonso Alzate-Pamplona, Óscar Galindo-Caballero, Juan Pablo Sánchez Escudero, Johny Villada Zapata
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Abstract

Introduction: it seems that, in the phase of greatest fertility, women's intrasexual competition (toward attractive women who live nearby) increases due to access to resources, status, and biologically desirable partners.

Objective: to compare the economic decisions (ED) during the ovulatory (OP) and luteal (LP) phases of the menstrual cycle (MC) with exposure to two stimuli: a photograph of a more attractive woman and a photograph of a less attractive woman, through the ultimatum game (UG).

Methodology: the research followed a cross-sectional design between subjects to see group differences by contrasting hypotheses. The sampling was probabilistic, with a sample of 100 heterosexual women, students at a public university with an age range of 18 to 24 years, with regular MC, who did not use hormonal contraceptive methods and did not have any endocrine condition. The inverse counting method with confirmation was applied to identify CM phases; and the UG to evaluate the DE.

Results: the phases of the MC had no effect on the ED; the women behaved similarly in their decisions, regardless of the phase of the cycle they were in or the type of stimulus to which they were exposed.

Conclusion: OP and LP do not affect the ED of women when they are exposed to an attractive stimulus. The discussion is made considering the evolutionary theory of the ovulatory shift hypothesis.

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最后通牒博弈中月经周期的经济决策、吸引力和性内竞争。
引言:在生育能力最强的阶段,女性的性内竞争(向住在附近的有吸引力的女性)似乎由于获得资源、地位和生理上理想的伴侣而增加。目的:通过最后通牒游戏(UG),比较两种刺激条件下女性在月经周期(MC)排卵期(OP)和黄体期(LP)的经济决策(ED)。研究方法:本研究在受试者之间采用横断面设计,通过对比假设来观察组间差异。抽样是随机的,抽样对象是100名异性恋女性,她们是一所公立大学的学生,年龄在18到24岁之间,有定期MC,没有使用激素避孕方法,也没有任何内分泌问题。采用带确认的逆计数法对CM相进行识别;结果:MC各阶段对ED无影响;不管她们处于生理周期的哪个阶段,也不管她们所受到的刺激类型是什么,这些女性的决定都是相似的。结论:在有吸引力的刺激下,OP和LP对女性ED无影响。讨论是考虑到进化论的排卵移位假说。
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来源期刊
International Journal of Psychological Research
International Journal of Psychological Research PSYCHOLOGY, MULTIDISCIPLINARY-
CiteScore
2.30
自引率
9.10%
发文量
22
审稿时长
16 weeks
期刊介绍: The International Journal of Psychological Research (Int.j.psychol.res) is the Faculty of Psychology’s official publication of San Buenaventura University in Medellin, Colombia. Int.j.psychol.res relies on a vast and diverse theoretical and thematic publishing material, which includes unpublished productions of diverse psychological issues and behavioral human areas such as psychiatry, neurosciences, mental health, among others.
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