MUÑOZ REYES, JOSÉ ANTONIO
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MUÑOZ REYES, JOSÉ ANTONIO
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ja.munoz@udd.cl
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55188709100

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Correction: Testing strategic pluralism: The roles of attractiveness and competitive abilities to understand conditionality in men’s short-term reproductive strategies

2021 , FIGUEROA VALDEBENITO, ORIANA CRISTINA , MUÑOZ REYES, JOSÉ ANTONIO , RODRÍGUEZ SICKERT, CARLOS ANDRÉS , Nohelia Valenzuela , Paula Pavez , Oriana Ramírez-Herrera , Miguel Pita , David Diaz , Ana Belén Fernández-Martínez , POLO RODRIGO, PABLO

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Testing strategic pluralism: The roles of attractiveness and competitive abilities to understand conditionality in men’s short-term reproductive strategies

2020 , FIGUEROA VALDEBENITO, ORIANA CRISTINA , MUÑOZ REYES, JOSÉ ANTONIO , RODRÍGUEZ SICKERT, CARLOS ANDRÉS , Nohelia Valenzuela , Paula Pavez , Oriana Ramírez-Herrera , Miguel Pita , David Diaz , Ana Belén Fernández-Martínez , POLO RODRIGO, PABLO , Alex Jones

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Are facial width-to-height ratio, 2D:4D digit ratio and skeletal muscle mass related to men dominant behavior in the Chicken Game?

2022 , POLO RODRIGO, PABLO , MUÑOZ REYES, JOSÉ ANTONIO , Valeska Cid-Jofré , Nohelia Valenzuela , Oriana Ramírez-Herrera , Paula Pavez

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Muscularity and Strength Affect Individual Variation in Self-Perception of Fighting Ability in Men

2019 , MUÑOZ REYES, JOSÉ ANTONIO , POLO RODRIGO, PABLO , RODRÍGUEZ SICKERT, CARLOS ANDRÉS , Paula Pavez , Nohelia Valenzuela , Oriana Ramírez-Herrera

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Corrigendum to “Are facial width-to-height ratio, 2D:4D digit ratio and skeletal muscle mass related to men dominant behavior in the Chicken Game?” [Pers. Individ. Differ. 184 (2022) 111209]

2022 , POLO RODRIGO, PABLO , MUÑOZ REYES, JOSÉ ANTONIO , Valeska Cid , Nohelia Valenzuela , Oriana Ramírez-Herrera , Paula Pavez

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The effect of intergroup competition outcome on ingroup cooperation: insights from the male warrior hypothesis

2024 , BELINCHÓN, MONTSERRAT , POLO RODRIGO, PABLO , RODRÍGUEZ SICKERT, CARLOS ANDRÉS , FIGUEROA VALDEBENITO, ORIANA CRISTINA , Nohelia Valenzuela , Paula Pavez , MUÑOZ REYES, JOSÉ ANTONIO

The Male Warrior Hypothesis (MWH) proposes that sex-specific selective pressures have promoted male cooperation with the ingroup members to outcompete rival groups. However, intergroup conflicts do not occur in isolation and the outcomes of previous competitions may influence group cooperativeness. Since this phenomenon is not well understood, we aimed to shed light on the effect of previous competition outcome on later cooperative behavior under intergroup conflicts. Based on the MWH, we hypothesized that repeated contests between groups could enhance ingroup cooperation, regardless of the outcome of the previous contest because status is at risk, but when competition is not present, participants would move to the symmetric equilibria.MethodsTo test this hypothesis, we recruited 246 individuals organized in groups of 6 and measured cooperation using a threshold public good game over two rounds, manipulating the outcome in the first round to create groups of winners and losers.ResultsOur results show that intergroup conflict scenarios promoted cooperation in both victory and defeat conditions, whereas, in the control scenario only losers increased their cooperation.DiscussionWe argue that winners under the presence of an external threat may enhance in-group cooperation in order to assure their status; whereas, losers may be attempting to regain it.

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Similarity in Indicators of Attractiveness in Heterosexual Couples, and their Relationship with Satisfaction and Trust

2022 , Paula Alvarez , POLO RODRIGO, PABLO , Nohelia Valenzuela , FIGUEROA VALDEBENITO, ORIANA CRISTINA , RODRÍGUEZ SICKERT, CARLOS ANDRÉS , MUÑOZ REYES, JOSÉ ANTONIO

In our species, the formation and maintenance of romantic partners is a nonrandom process. In this sense, similarity between members of the couple can be relevant for the beginning of the relationship (i.e., assortative mating) and maintenance, being similarity in attractiveness one of the most interesting aspects of this phenomenon. Despite that similarity in attractive traits has been documented, there is a lack of studies including modern morphological measures like fluctuating facial asymmetry or body fat percentage when assessing the effect that similarity in attractiveness could provoke on behaviors and feelings necessary to maintain a long-term relationship (e.g., satisfaction and trust). We assessed the presence of similarity in attractiveness for self-perceived measures (attractiveness and mate value) and physical traits (body fat percentage, body mass index, and fluctuating facial asymmetry) in a population of 196 heterosexual young couples from Chile (n = 392). Then, using actor-partner interdependence models (APIM), we assessed whether satisfaction and trust within the couples were influenced by attractiveness. Our results indicated the presence of similarity for all studied traits with the exception of fluctuating facial asymmetry. In addition, we only found that self-assessment of attractiveness is important for satisfaction in women, and partner's physical attractiveness is important for satisfaction and trust in men. Our results suggest that similarity in attractiveness is not playing a major role in affecting relationship. It is probably that similarity could be better explained from the initial stages of relationship, where the mating market forces conduce to the conformation of similar couples.

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Evidence of the active participation of women in the intergroup conflict based on the use of aggression and cooperation

2023 , MUÑOZ REYES, JOSÉ ANTONIO , Daniel Torrico-Bazoberry , POLO RODRIGO, PABLO , Eugenio Guzmán-Lavín , FIGUEROA VALDEBENITO, ORIANA CRISTINA , FAJARDO RODRÍGUEZ, GABRIELA PAZ , Nohelia Valenzuela , BELINCHÓN, MONTSERRAT , RODRÍGUEZ SICKERT, CARLOS ANDRÉS , Miguel Pita

AbstractIntergroup conflict has been a persistent aspect of human societies since the emergence of our species. Various researchers have proposed that competition between groups has acted as a key selective force throughout human evolutionary history. Such intergroup competition for limited resources exacerbated the expression of intergroup aggression and intragroup cooperation. Furthermore, it would have a sexual dimorphism, with men demonstrating increased sensitivity to conflict threats—in order to maximize reproductive opportunities—, while women generally reject from active engagement in intergroup conflict. In the present study, we conducted behavioral experiments under controlled laboratory conditions to measure cooperation and aggression from using virtual games, specifically the Public Good Games and the Point Subtraction Aggression Paradigm, in a sample of 541 participants. We created control and experimental intergroup competition scenarios, where aggression and cooperation were necessary to increase monetary rewards. Our results shows that men modulate aggression and cooperation in the presence of intergroup conflict. In addition, our data also reveals that women cooperate more than men and display heightened levels of cooperation and aggression when confronted with intergroup conflict. These findings prompt a reevaluation of current functional theoretical models concerning the role of women in intergroup conflict and suggest that the dynamics of human aggression and cooperation may be more nuanced than previously believed.

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