scholarly journals Brain monoaminergic activity during predator inspection in the Trinidadian guppy (Poecilia reticulata)

2021 ◽  
Author(s):  
Sylvia Dimitriadou ◽  
Svante Winberg ◽  
Per-Ove Thörnqvist ◽  
Darren P Croft ◽  
Safi K Darden

To understand the processes underpinning social decision-making, we need to determine how internal states respond to information gathered from the social environment. Brain monoamine neurotransmitters are key in the appraisal of the social environment and can reflect the internal state underlying behavioural responses to social stimuli. Here we determined the effects of conspecific partner cooperativeness during predator inspection on brain monoamine metabolic activity in Trinidadian guppies (Poecilia reticulata). We quantified the concentration of dopamine, serotonin and their metabolites across brain sections sampled immediately after ostensibly experiencing cooperation or defection from social partners whilst inspecting a predator model. Our results indicate dopaminergic and serotonergic activity differs with the cooperativeness experienced; these different neurotransmission profiles are likely to affect the expression and regulation of downstream behaviours that ultimately contribute to the patterning of cooperative interactions among individuals in the population.

2019 ◽  
Vol 30 (4) ◽  
pp. 243-249
Author(s):  
Ronja Weiblen ◽  
Melanie Jonas ◽  
Sören Krach ◽  
Ulrike M. Krämer

Abstract. Research on the neural mechanisms underlying Gilles de la Tourette syndrome (GTS) has mostly concentrated on abnormalities in basal ganglia circuits. Recent alternative accounts, however, focused more on social and affective aspects. Individuals with GTS show peculiarities in their social and affective domain, including echophenomena, coprolalia, and nonobscene socially inappropriate behavior. This article reviews the experimental and theoretical work done on the social symptoms of GTS. We discuss the role of different social cognitive and affective functions and associated brain networks, namely, the social-decision-making system, theory-of-mind functions, and the so-called “mirror-neuron” system. Although GTS affects social interactions in many ways, and although the syndrome includes aberrant social behavior, the underlying cognitive, affective, and neural processes remain to be investigated.


1983 ◽  
Vol 28 (2) ◽  
pp. 134-135
Author(s):  
Louise Cherry Wilkinson

1991 ◽  
Vol 36 (2) ◽  
pp. 146-147
Author(s):  
Mollie B. Condra

Author(s):  
Muchimah MH

Government Regulation No. 9 of 1975 related to the implementation of marriage was made to support and maximize the implementation of Law No. 1 of 1974 which had not yet proceeded properly. This paper examines Government Regulations related to the implementation of marriage from the perspective of sociology and anthropology of Islamic law. Although the rules already exist, some people still carry out marriages without being registered. This is anthropologically the same as releasing the protection provided by the government to its people for the sake of a rule. In the sociology of Islamic law, protection is a benchmark for the assessment of society in the social environment. Therefore the purpose of this paper is to find out how the implementation of marriage according to PP. No. 9 of 1975 concerning the Marriage Law in the socio-anthropological perspective of Islamic Law.


2020 ◽  
Vol 4 (1) ◽  
pp. 145-152
Author(s):  
Radosław Molenda

Showing the specificity of the work of the contemporary library, and the variety of its tasks, which go far beyond the lending of books. The specificity of the library’s public relations concerning different aspects of its activity. The internal and external functions of the library’s public relations and their specificity. The significant question of motivating the social environment to use the offer of libraries, and simulta-neously the need to change the negative perception of the library, which discourages part of its poten-tial users from taking advantage of its services. The negative stereotypes of librarians’ work perpetuated in the public consciousness and their harmful character. The need to change the public relations of libra-ries and librarians with a view to improving the realization of the tasks they face. Showing the public relations tools which may serve to change the image of librarians and libraries with particular emphasis on social media. This article is a review article, highlighting selected research on the librarian’s stereo-type and suggesting actions that change the image of librarians and libraries.


Author(s):  
Volodymyr Ryabchenko

There are following prerequisites outlined in this article: worldwide democratization trend; complexity of structures of social systems; growing needs in human capital development; autonomy of national higher education institutions; civilizational problem of Ukraine in national elite. Conceptual problems on a road to real democracy in higher education institutions were actualized and analyzed. Determined and characterized three models of higher education institutions activities based on the level of democratization needs of their social environment as: negative, neutral and favorable.


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