Article
Neurosciences
Yin Wu, Ran Wei, Yu Nan, Yang Hu, Yuting Ye
Summary: This study investigates the effects of androstadienone, a potential human sex pheromone, on aggression. The results show that smelling androstadienone reduces both reactive and proactive aggression in men, but increases reactive aggression in women.
SOCIAL COGNITIVE AND AFFECTIVE NEUROSCIENCE
(2023)
Review
Biology
T. M. Milewski, W. Lee, F. A. Champagne, J. P. Curley
Summary: Individuals in dominant and subordinate positions in social hierarchies exhibit different behaviors, physiology, and neural functioning. Dominant animals display higher levels of dominance behaviors and reproductive behaviors, while subordinate animals inhibit these behaviors and adapt to socially stressful contexts. These changes may have short-term benefits but pose long-term challenges to health. Additionally, rapid changes in social ranks are associated with dynamic modulations in the brain and periphery.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)
Article
Acoustics
Hsiao Mun Lee, Saurabh Garg, Kian Meng Lim, Heow Pueh Lee
Summary: The study analyzed sound levels of traditional performances including Taiko drumming and lion dance, finding that Taiko drumming could potentially damage hearing at 97dBA, while lion dance performances were below 87dBA. Both performances were found to have significant low frequency content. Using a calibrated smartphone for assessing sound levels allows for on-the-spot measurements without the need for specialized equipment.
Article
Biology
Patricia Beltrao, Ana Cristina R. Gomes, Goncalo C. Cardoso
Summary: Bullying is a phenomenon where individuals attack those lowest in the social dominance hierarchy, and its purpose is not yet fully understood because the victims do not pose a challenge to the aggressors. However, it appears that bullying may serve as a means of displaying dominance to others. This can help manage dominance hierarchies and avoid direct confrontations with potentially dangerous opponents.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
Article
Biology
Eli D. Strauss, Alex R. DeCasien, Gabriela Galindo, Elizabeth A. Hobson, Daizaburo Shizuka, James P. Curley
Summary: This article presents a compiled archive of published dominance interaction datasets from the last 100 years, aiming to facilitate comparative studies of the structure and function of dominance hierarchies.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)
Article
Behavioral Sciences
Sean M. Maguire, Ross DeAngelis, Peter D. Dijkstra, Alex Jordan, Hans A. Hofmann
Summary: Living in a group can bring benefits to individuals, but also exposes them to intense competition. Individual behavior can directly and indirectly influence the behavior of others, as well as affect group characteristics. Dominant males in stable communities have higher testosterone levels compared to subordinate males.
HORMONES AND BEHAVIOR
(2021)
Article
Computer Science, Information Systems
James Pinkl, Michael Cohen
Summary: Virtual Co-embodiment (vc) is a new field in virtual reality that allows users to share control of an avatar. A recent study found that vc has the highest efficiency in motor skill learning compared to other VR-based methods. This study builds on these findings and combines them with previous work on Action Observation (ao) and drumming to develop a new concept for teaching drumming skills using a puppet avatar controlled by both a user and separate processes, called a halvatar. A pilot study with non-musicians showed the potential effectiveness of this tool and approach.
Article
Behavioral Sciences
Ana Lilia Cerda-Molina, Lilian Mayagoitia-Novales, Claudio de la O-Rodriguez, Javier Borraz-Leon, Gilberto Matamoros-Trejo
Summary: The role of androgens, age, and rank position in the regulation of intrasexual competition and aggression in primate females was studied. The study found that levels of estradiol were positively associated with female-to-female aggression, while testosterone levels were negatively associated with female-to-male aggression and positively associated with dominance rank. Age was not found to affect aggressive behaviors. Male-to-female aggression was predicted by sexual behaviors, but not by female hormonal levels.
BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY
(2022)
Article
Behavioral Sciences
Robert Fialkowski, Phillip Aufdemberge, Victoria Wright, Peter Dijkstra
Summary: The study found significant changes in markers of oxidative stress during social ascent in the East African cichlid fish. The newly dominant male showed lower blood plasma total antioxidant capacity but higher liver antioxidant defense. By day 14, all markers of oxidative stress in ascending males were similar to stable dominant males, indicating a dynamic response to social dominance.
BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY
(2021)
Article
Zoology
Phoebe D. Edwards, Daphne A. Arguelles, Gabriela F. Mastromonaco, Melissa M. Holmes
Summary: In naked mole-rats, subordinate estradiol levels increase during the queen's pregnancy and are correlated with queen levels. The sharing of hormones in the colony may be specific to cues from the queen, suggesting that not only aggression but other reproductive status cues from the queen may influence subordinate hormonal changes. This has implications for how social cues influence individual and group physiology in cooperative breeders.
INTEGRATIVE AND COMPARATIVE BIOLOGY
(2021)
Review
Fisheries
Melina Coelho da Silva, Adelino Vicente Mendonca Canario, Peter Colin Hubbard, David Manuel Flores Goncalves
Summary: Fishes exhibit diverse aggressive behaviors and adjusting aggression levels is crucial to prevent negative consequences. While hormonal modulation and chemical communication are suggested to play a role, further research is needed to fully understand the physiological basis of aggression in fishes.
JOURNAL OF FISH BIOLOGY
(2021)
Article
Psychology, Clinical
Edelyn Verona, Sean J. McKinley, Amy Hoffmann, Brett A. Murphy, Ashley L. Watts
Summary: This study explores the role of feelings of power and desire for power in psychopathy-related aggression. The results indicate that different facets of psychopathy have specialized relationships with different forms of aggression, and the desire for power is associated with multiple forms of aggression proneness.
PERSONALITY DISORDERS-THEORY RESEARCH AND TREATMENT
(2023)
Article
Behavioral Sciences
Graham Albert, Erika Wells, Steven Arnocky, Chang Hong Liu, Carolyn R. Hodges-Simeon
Summary: Research has shown that faces manipulated to appear more masculine are perceived as more dominant. Men rated masculinized faces as more dominant even after a brief exposure, indicating an ability to distinguish facial sexual dimorphism. However, recognition memory did not differ between masculinized and feminized faces, potentially due to a floor effect.
AGGRESSIVE BEHAVIOR
(2021)
Article
Behavioral Sciences
Lauren Seex, Claudia Fichtel, Peter M. Kappeler, Charlotte K. Hemelrijk
Summary: This study investigates the association between social and ecological factors and variation in dominance style in three lemur species. The results show that stronger spatial cohesion among individuals leads to higher aggression rates, a more despotic dominance style, and stronger female dominance over males. These findings highlight the significance of spatial cohesion in determining dominance style.
BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY
(2022)
Article
Multidisciplinary Sciences
Benjamin A. Taylor, Alessandro Cini, Christopher D. R. Wyatt, Max Reuter, Seirian Sumner
Summary: The study uses machine learning to analyze gene expression profiles of Polistes dominula paper wasps following the loss of a queen, revealing a strong response of individual gene expression to queen loss, even in individuals that appear phenotypically unaffected.
NATURE COMMUNICATIONS
(2021)