scholarly journals The social evolution of sleep: sex differences, intragenomic conflicts and clinical pathologies

2019 ◽  
Vol 286 (1894) ◽  
pp. 20182188 ◽  
Author(s):  
Gonçalo S. Faria ◽  
Susana A. M. Varela ◽  
Andy Gardner
Keyword(s):  
Gene Expression ◽  
Sex Differences ◽  
Theoretical Analysis ◽  
Empirical Data ◽  
Social Evolution ◽  
Maternal Origin ◽  
Intragenomic Conflict ◽  
The Social ◽  
Social Partners ◽  
Sleep Sex

Sleep appears to be essential for most animals, including humans. Accordingly, individuals who sacrifice sleep are expected to incur costs and so should only be evolutionarily favoured to do this when these costs are offset by other benefits. For instance, a social group might benefit from having some level of wakefulness during the sleeping period if this guards against possible threats. Alternatively, individuals might sacrifice sleep in order to gain an advantage over mate competitors. Here, we perform a theoretical analysis of the social evolutionary pressures that drive investment into sleep versus wakefulness. Specifically, we: investigate how relatedness between social partners may modulate sleeping strategies, depending upon whether sleep sacrifice is selfish or altruistic; determine the conditions under which the sexes are favoured to adopt different sleeping strategies; identify the potential for intragenomic conflict between maternal-origin versus paternal-origin genes regarding an individual's sleeping behaviour; translate this conflict into novel and readily testable predictions concerning patterns of gene expression; and explore the concomitant effects of different kinds of mutations, epimutations, and uniparental disomies in relation to sleep disorders and other clinical pathologies. Our aim is to provide a theoretical framework for future empirical data and stimulate further research on this neglected topic.

Let all social partners in the social support process count: New perspectives on classical theory

2013 ◽  
Author(s):  
Liu-Qin Yang ◽  
Robert R. Wright ◽  
Liu-Qin Yang ◽  
Lisa M. Kath ◽  
Michael T. Ford ◽  
...  
Keyword(s):  
Social Support ◽  
Classical Theory ◽  
The Social ◽  
Social Partners

New research frameworks in the study of chimpanzee and gorilla sociality and communication

2019 ◽  
Author(s):  
Sam G. B. Roberts ◽  
Anna Roberts
Keyword(s):  
Social Evolution ◽  
Social Complexity ◽  
Brain Size ◽  
Social Systems ◽  
Strongly Correlated ◽  
The Social ◽  
Human Social Evolution ◽  
Research Frameworks ◽  
New Research ◽  
Large Groups

Group size in primates is strongly correlated with brain size, but exactly what makes larger groups more ‘socially complex’ than smaller groups is still poorly understood. Chimpanzees (Pan troglodytes) and gorillas (Gorilla gorilla) are among our closest living relatives and are excellent model species to investigate patterns of sociality and social complexity in primates, and to inform models of human social evolution. The aim of this paper is to propose new research frameworks, particularly the use of social network analysis, to examine how social structure differs in small, medium and large groups of chimpanzees and gorillas, to explore what makes larger groups more socially complex than smaller groups. Given a fission-fusion system is likely to have characterised hominins, a comparison of the social complexity involved in fission-fusion and more stable social systems is likely to provide important new insights into human social evolution

Conceptual foundations for the development of J.G.Turner’s general sociological theory: Metatheoretical ideas, basic concepts and analytical scheme

2019 ◽  
pp. 40-60
Author(s):  
Volodymyr Reznik
Keyword(s):  
Social Evolution ◽  
Social Dynamics ◽  
Sociological Theory ◽  
Social Forces ◽  
Analytical Scheme ◽  
Initial Stage ◽  
The Social ◽  
Production Distribution ◽  
Basic Concepts ◽  
Conceptual Foundations

The article discusses the conceptual foundations of the development of the general sociological theory of J.G.Turner. These foundations are metatheoretical ideas, basic concepts and an analytical scheme. Turner began to develop a general sociological theory with a synthesis of metatheoretical ideas of social forces and social selection. He formulated a synthetic metatheoretical statement: social forces cause selection pressures on individuals and force them to change the patterns of their social organization and create new types of sociocultural formations to survive under these pressures. Turner systematized the basic concepts of his theorizing with the allocation of micro-, meso- and macro-levels of social reality. On this basis, he substantiated a simple conceptual scheme of social dynamics. According to this scheme, the forces of macrosocial dynamics of the population, production, distribution, regulation and reproduction cause social evolution. These forces force individual and corporate actors to structurally adapt their communities in altered circumstances. Such adaptation helps to overcome or avoid the disintegration consequences of these forces. The initial stage of Turner's general theorizing is a kind of audit, modification, modernization and systematization of the conceptual apparatus of sociology. The initial results obtained became the basis for the development of his conception of the dynamics of functional selection in the social world.

Race and Sex Differences and Fear of Dying: A Test of Two Hypotheses — High Risk or Social Loss?

1987 ◽  
Vol 17 (3) ◽  
pp. 229-236 ◽  
Author(s):  
Alan Marks
Keyword(s):  
Sex Differences ◽  
High Risk ◽  
Mortality Rates ◽  
National Sample ◽  
Zero Order ◽  
Fear Of Death ◽  
Level Of Education ◽  
Social Loss ◽  
Education And Health ◽  
The Social

A national sample of noninstitutionalized adult Americans is used to test two hypotheses and their relation to fear of death, The first hypothesis, referred to as the high risk hypothesis (i.e., groups with higher mortality rates will express more fear of death than groups with lower rates of mortality), is rejected. The second hypothesis, referred to as the social loss hypothesis, is developed and tested across six status categories—race, sex, age, religion, level of education, and health status. Zero order differences did appear for sex and race, however, these differences were eliminated with the introduction of controls. Both hypotheses are rejected.

Social Evolution, Hamilton’s Rule, and Inclusive Fitness

2018 ◽  
Author(s):  
Samir Okasha
Keyword(s):  
Social Behaviour ◽  
Social Evolution ◽  
Inclusive Fitness ◽  
Popular Approach ◽  
Hamilton’S Rule ◽  
Inclusive Fitness Theory ◽  
The Social ◽  
Social Encounters ◽  
The Individual ◽  
Hamilton's Rule

Inclusive fitness theory, originally due to W. D. Hamilton, is a popular approach to the study of social evolution, but shrouded in controversy. The theory contains two distinct aspects: Hamilton’s rule (rB > C); and the idea that individuals will behave as if trying to maximize their inclusive fitness in social encounters. These two aspects of the theory are logically separable but often run together. A generalized version of Hamilton’s rule can be formulated that is always true, though whether it is causally meaningful is debatable. However, the individual maximization claim only holds true if the payoffs from the social encounter are additive. The notion that inclusive fitness is the ‘goal’ of individuals’ social behaviour is less robust than some of its advocates acknowledge.

Between entrepreneurs and workers: Cleavages and compromises in rationales and policy solutions regarding ‘dependent contractors’

2021 ◽  
pp. 0143831X2110303
Author(s):  
Louis Florin ◽  
François Pichault
Keyword(s):  
Social Protection ◽  
Policy Framework ◽  
Policy Documents ◽  
The Social ◽  
Political Narratives ◽  
Social Partners ◽  
Narrative Policy Framework ◽  
Policy Solutions ◽  
The Eu ◽  
Labour Regulation

The emergence of dependent contractors challenges the existing institutions regarding social protection and labour regulation. This article aims at identifying the political narratives that explain the emergence of New Forms of Employment (NFE) and dependent contracting along with the policy solutions proposed by the social partners at the EU and international level. By analysing policy documents from the social partners through the lens of a qualitative version of the Narrative Policy Framework (NPF), the authors indentify two distinct narratives – ‘devaluation of work’ and ‘entrepreneurship and flexibility’. The authors show how these rationales lead to various policy solutions and identify oppositions and possible compromise.

scholarly journals Sex differences in gene expression related to antipsychotic induced weight gain

PLoS ONE ◽  
2019 ◽  
Vol 14 (4) ◽  
pp. e0215477 ◽  
Author(s):  
Jesus Sainz ◽  
Carlos Prieto ◽  
Benedicto Crespo-Facorro
Keyword(s):  
Gene Expression ◽  
Sex Differences ◽  
Weight Gain
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