scholarly journals Prosocial and antisocial choices in a monogamous cichlid with biparental care

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Shun Satoh ◽  
Redouan Bshary ◽  
Momoko Shibasaki ◽  
Seishiro Inaba ◽  
Shumpei Sogawa ◽  
...  

AbstractHuman society is cooperative and characterized by spontaneous prosociality. Comparative studies on endotherm vertebrates suggest that social interdependence causes the evolution of proactive prosociality. To test the generality of this hypothesis, we modify a prosocial choice task for application to the convict cichlid, Amatitlania nigrofasciata, a monogamous fish with biparental care and a strong pair bond. We also affirm that male subjects learn to favor prosocial choices when their mates are the recipients in a neighboring tank. When the neighboring tank is empty, males choose randomly. Furthermore, in the absence of their mates, males behave prosocially toward a stranger female. However, if the mate of the subjects is also visible in the third tank, or if a male is a potential recipient, then subjects make antisocial choices. To conclude, fish may show both spontaneous prosocial and antisocial behaviors according to their social relationships with conspecifics and the overall social context.

2011 ◽  
Vol 57 (4) ◽  
pp. 449-452 ◽  
Author(s):  
Javier Delbarco-Trillo ◽  
Robert E. Johnston

Abstract In many species, agonistic interactions result in social relationships that are stable over time. In Syrian hamsters, two unfamiliar males that are placed together will fight vigorously and a clear winner/loser relationship is usually established. In subsequent interactions, the loser will flee soon after detecting the familiar winner. Here we tested the hypothesis that losing a fight with a conspecific will affect future agonistic interactions not only toward that individual (i.e., the familiar winner) but also toward unfamiliar conspecifics. To test this hypothesis we paired two Syrian hamster males in three trials on one day in which the loser had the opportunity to escape the winner. The next day the loser was paired with an unfamiliar male, also for three trials. If he lost again, he was tested on a third day with a third unfamiliar male. Subjects were those males that were losers on all three days. The latency to escape on the first trial on Days 2 and 3 was significantly shorter than on the first trial on Day 1, indicating that losing against the first male affected the response toward unfamiliar males. However, the latency to escape on the first trial on Days 2 and 3 was significantly longer than that on the third trial on the preceding day, indicating that a loser treats unfamiliar males differently than a familiar winner. These results suggest that a defeat during an interaction with one male affects later agonistic behavior towards other, unfamiliar males.


Balcanica ◽  
2004 ◽  
pp. 51-70
Author(s):  
Ivan Jordovic

The Focus of this study is the standpoint of the play Sisyphus and critias the leader of the thirty towards the right of the stronger. this is a question of constant interest in scientific circles, since its answer can serve as the indicator of the influence this famous theory has had. this interest has been encouraged by the fact that critias? authorship of the play is questionable. however, the question of the author is not of primary importance for this article, because there are some arguments, among some well known ones, which were not considered and which Show that in this satire, regardless of the author and the purpose of this fragment, the right of the stronger is actually non-existant. the first argument to support this theory is that nomosphysis antithesis is nowhere explicitly mentioned although it is the crucial element of the right of the stronger. in addition there is no claim in the play that the exploitation of the strong by the week or by law accrued. the second argument is that despite the incapability of laws to prevent the secret injustice, they and their importance for the human society are depicted in a positive light. it should also be noted that, unlike callicles and glaucon, laws are created to stop the bad and not the good. the third argument is that the invention of religion is accepted as a positive achievement, which finally enables the overcoming of primeval times and lawlessness. the reflection of this argument is a positive characterization of the individual who invented the fear of gods. the fourth argument, which has not been taken into consideration so far is the way the supporters and opponents of lawlessness are described and marked as ????? and ?????? in the satire only physically strong are considered as strong as opposed to callicles, where they are also spiritually superior. intelectually superior in Sisyphus is the inventor of the fear of gods who is also in favor of law and order. the fact that the strong are described as kako? while the supporter of law are recognized as ?????? is also of great importance. in other words, this division re?ects strong influence of aristocratic set of values by which the ?????? are in every way superior to the ?????. some other indications Show that critias cannot be listed as a advocate of the right of the stronger regardless of our previous conclusion about the play. we need to bear in mind the fact that critias has only recently been linked with the theory of the right of the stronger. in the classical period there had been non attempt to explain his ruthless politics in Athens 404/403 BC by Means of the right of the stronger. what is more, no indication that he supported this theory were found. unlike xenophon and philostratus, it is very likely that Plato and Aristotle were mild to critias Due to his family ties with Plato and his friendship with Socrates. however, all the four of them would have stated that critias was an upholder of the right of the stronger if he had actually been that. that way Socrates would have been completely acquitted of the responsibility for the crimes critias had committed, because of the possible assertion that critias was misled by this theory and succumbed to the negative influence of the sophistic teachings. based on these arguments we can conclude that there is no trace of the right of the stronger in the play Sisyphus and that critias did not support this theory. this satirical play and critias were Most probably under a great influence of aristocratic beliefs, which were often scientifically misinterpreted as the reflection of the right of the stronger.


2016 ◽  
Vol 54 (1) ◽  
pp. 83-90 ◽  
Author(s):  
Paweł Linek ◽  
Edward Saulicz ◽  
Andrzej Myśliwiec ◽  
Monika Wójtowicz ◽  
Tomasz Wolny

AbstractThe existing data indicate that the result of the Functional Movement Screen (FMS) test influences the likelihood of subsequent injury in professional athletes. Therefore, exercises increasing test scores of the FMS may be useful at various stages of sports activity. This study evaluated the effects of the NEURAC sling exercises method on the FMS test score in teenage volleyball players. The study was conducted on 15 volleyball players aged 14 years. The FMS test was performed three times interspersed with a two-month interval. Between the first and the second assessment, neither additional treatment nor training was applied, while between the second and the third assessment, the participants performed stabilisation exercises based on the NEURAC method. Training was carried out twice a week, for eight weeks. The analysis showed that between the first and the second measurement, no significant differences occurred. The use of specific sling exercises caused a significant improvement in FMS results (p ≤ 0.01) between the first and the third, as well as the second and the third measurement. The applied stabilisation exercises based on the NEURAC method positively influenced the FMS test result in male subjects practicing volleyball. Performance of such exercises also resulted in more than 90% of the subjects having a total FMS test score ≥ 17, which may be important in the prevention of injuries. The preliminary results indicate that this type of exercise should be included in a teenage volleyball training routine.


2019 ◽  
Vol 12 (1) ◽  
pp. 281-287
Author(s):  
Amal A. Kokandi ◽  
Jafar Salman Alkhalaf ◽  
Asmaa Mohammedsaleh

Physical activity is known to have benefits on health and well-being. The aim of this study was to assess the quality of life domains (using WHOQOL-Bref) in relation to the level of physical activity in young healthy adults at Saudi Arabia. An online questionnaire (WHOQOL-BREF and IPAQ) was sent to adults without special needs in Saudi Arabia aged 18 years and more. In total 1026 completed the questionnaire. Females were 767 and males were 250 (9 were missing). Results of this study showed that IPAQ total score was significantly correlated with WHOQOL-BREF physical, psychological and social relationships health scores. Additionally, the high PA group had a significantly higher WHOQOL-BREF for all domains (physical, psychological, social relationships and environmental health scores) compared to the low PA group. Male subjects had a significantly higher physical health score than female subjects, however, female subjects had a significantly higher social relationships score. In conclusion, high physical activity is linked with high better quality of life in all domains.


2013 ◽  
Author(s):  
Sean A Rands ◽  
Naomi Terry ◽  
Hayley Muir

Models of collective animal behaviour frequently make assumptions about the effects of neighbours on the behaviour of focal individuals, but these assumptions are rarely tested. One such set of assumptions is that the switch between active and inactive behaviour seen in herding animals is influenced by the activity of close neighbours, where neighbouring animals show a higher degree of behavioural synchrony than would be expected by chance. We tested this assumption by observing the simultaneous behaviour of paired individuals within a herd of red deer Cervus elaphus. Focal individuals were more synchronised with their two closest neighbours than with the third closest or randomly selected individuals from the herd. Our results suggest that the behaviour of individual deer is influenced by immediate neighbours. Even if we assume that there are no social relationships between individuals, this suggests that the assumptions made in models about the influence of neighbours may be appropriate.


2019 ◽  
Vol 70 ◽  
pp. 09006
Author(s):  
Sergei Makhin ◽  
Elena Birukova ◽  
Elena Chuyan ◽  
Oleg Kubryak

The study of the EEG alpha reactivity patterns in the prefrontal, central, parietal and occipital regions involved 25 healthy male subjects who participated in four training sessions of controlling the power platform with visual feedback. A significant prefrontal alpha rhythm synchronization was found which was not essentially modulated in a series of subsequent trainings. A significant desynchronization of the occipital alpha was registered for the second session which gradually increased up to the fourth session. The sensorimotor alpha rhythm didn’t show regular patterns. The use of the dominant (right) hand resulted in a significant desynchronization of the parietal alpha in the right hemisphere in the third and the fourth training sessions.


2020 ◽  
Vol 18 (1) ◽  
pp. 119-124
Author(s):  
Anna KALTSEVA

e article draws parallels between the Bulgarian fairytale “The Three Brothers and the Golden Apple” and the second chapter of Vishnu Purana. The general philosophical aspects of these texts, which serve as a basis for the proposed hypothesis, are discussed. These are narratives of wisdom as a basis for the creation, development, existence of life, and human civilization. The gold thread in Vishnu Purana and the golden apple in the Bulgarian magic fairytale are symbols of knowledge and wisdom, with the power of which the visible world and the human society were created. If in Vishnu Purana this symbol is wrapped in a philosophical narrative about the creation of life, in “The Three Brothers and the Golden Apple” philosophy is hidden behind the seemingly concrete images and characters of the fairytale. In “The Three Brothers and the Golden Apple”, the tree with golden fruits symbolizes the tree of knowledge - an image that is present in all the sacred texts of the religions around the world. The tale is a story of the trials that one goes through in order to overcome one’s weaknesses, to know oneself, to understand the spiritual possibilities and qualities that make a person close and equal to God. The third brother continues his journey in the world, having a faithful companion - his intuition, symbolized by the most beautiful and intelligent princess. The third brother, or the symbol of the man who has overcome his weaknesses, can always benefit from the eternal Divine wisdom, symbolized by the golden apple.


2020 ◽  
Vol 9 (2) ◽  
pp. 224-239
Author(s):  
Alessandra Krauss Wieczorkievicz ◽  
Suelen Silveira Valente ◽  
Maria Rosangela Chagas Faro ◽  
Dairane de Almeida ◽  
Joel Haroldo Baade

A Sociologia integra o currículo da educação básica como disciplina obrigatória e a sua contribuição educacional tem sido objeto de análise em diferentes momentos na sociedade. Diante disso, este estudo possui como objeto de pesquisa a abordagem da Sociologia em escolas de ensino médio no município de Porto União e seus impactos sociais na cidade, com direcionamento para a influência do conhecimento sociológico em Porto União, com vistas para a formação do aluno para a vivência em sociedade. Nessa direção, a pesquisa de natureza qualitativa e quantitativa, com questionários semiestruturados foram utilizados para a aplicação de entrevista aos 100 alunos do terceiro ano do Ensino Médio da E.E.B.Cid Gonzaga. Com o intuito, em compreender como estes interpretam seu papel de estudantes de sociologia e como a disciplina conribui com a formação  para a vivência em sociedade. Concluiu-se com esta pesquisa, que o conhecimento sociológico é extremamente importante e impactante no percurso da formação desses alunos, pois a aulas de Sociologia colaboram com a compreensão desse processo por meio da preparação dos estudantes para viver em sociedade e o entendimento sobre as relações sociais, nas quais eles estão inseridos. Palavras-Chave: Conhecimento sociológico. Formação.  Vivência em sociedade. Estudantes. Sociologia.   Abstract: Sociology integrates the basic education curriculum as a compulsory subject and its educational contribution has been the object of analysis at different times in society. Therefore, this study has as its research object the approach of Sociology in high schools in the municipality of Porto União and its social impacts in the city, with a focus on the influence of sociological knowledge in Porto União, with a view to the formation of the student for living in society. In this sense, qualitative and quantitative research, with semi-structured questionnaires, was used for the application of interviews to 100 students of the third year of High School at E.E.B.Cid Gonzaga. In order to understand how they interpret their role as students of sociology and how the discipline contributes to training for living in society. It was concluded with this research, that the sociological knowledge is extremely important and impacting in the education of these students, because the Sociology classes collaborate with the understanding of this process through the preparation of students to live in society and the understanding of social relationships, in which they are inserted. Keywords: Sociological. Knowledge. Training. Student. Sociology.


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