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1.
    
In a recent paper, Robert Putnam (2007) challenges the contact hypothesis by arguing that ethnic diversity causes people to ‘hunker down’ and essentially withdraw themselves from society. Drawing on qualitative data collected from three mixed communities in Northern Ireland, this paper explores the extent and quality of contact experienced by Protestants and Catholics in their everyday lives. Themes emerging from our data are generally consistent with the contact hypothesis. There is also some support for Putnam's theory that mixed environments can induce ‘hunkering down’ and that inter-group trust may be compromised. However, our data challenge Putnam's argument that these responses are a consequence of ‘anomie’ or ‘social malaise’. Rather, we find that withdrawal from social activity in the neighbourhoods we observed was a calculated response at times of threat, often aimed at protecting existent positive inter-ethnic relations.  相似文献   

2.
    
Dendritic spines serve as the post‐synaptic structural component of synapses. The structure and function of dendritic spines are dynamically regulated by a number of signaling pathways and allow for normal neural processing, whereas aberrant spine changes are thought to contribute to cognitive impairment in neuropsychiatric and neurodegenerative disorders. However, spine changes within different brain regions and their contribution to specific cognitive functions, especially later in adulthood, is not well understood. In this study, we used late‐adult KALRN‐deficient mice as a tool to investigate the vulnerability of different cognitive functions to long‐term perturbations in spine plasticity in different forebrain regions. We found that in these mice, loss of one or both copies of KALRN lead to genotype and brain region‐dependent reductions in spine density. Surprisingly, heterozygote and knockout mice showed differential impairments in cognitive phenotypes, including working memory, social recognition, and social approach. Correlation analysis between the site and magnitude of spine loss and behavioral alterations suggests that the interplay between brain regions is critical for complex cognitive processing and underscores the importance of spine plasticity in normal cognitive function. Long‐term perturbation of spine plasticity results in distinct impairments of cognitive function. Using genetically modified mice deficient in a central regulator of spine plasticity, we investigated the brain region‐specific contribution of spine numbers to various cognitive functions. We found distinct cognitive functions display differential sensitivity to spine loss in the cortex and hippocampus. Our data support spines as neuronal structures important for cognition and suggest interplay between brain regions is critical for complex cognitive processing.  相似文献   

3.
This paper investigates the social ties forged by Romanians in London with migrants of different origins in work and non-work contexts to offer a more nuanced view of ‘bridging’ social ties and related discussions of ‘everyday’ cosmopolitanism. Contrary to the overemphasis on ethnic ties seen as a form of bonding in migration research, the paper shows how Romanians bridge informally with many other migrants based on shared ‘non-native’ status. Alongside non-ethnically marked commonalities, ethnicity emerges as an important ingredient of cosmopolitan socialization, yet without necessarily signalling coexisting ethnic identities, as commonly assumed. Romanians' experiences further show that despite providing significant social and cultural capital, bridging ties with migrants, rather than natives, rarely accrue effective resources for social mobility. The findings suggest the need to disaggregate and qualify current understandings of ‘bridging’ social ties usually depicted in positive terms and uniformly as cross-ethnic relationships, or only linked with the ‘mainstream’ population.  相似文献   

4.
Previous research on black students attending predominantly white colleges has emphasized race-based differences with white students while downplaying differences in social class. This research indicates that class-based differences are an important component of many black students’ discomfort at ‘Northern College’, a school that has traditionally served wealthy white students. Drawing on interviews and participant observation done on campus, I apply cultural capital theory to explain how differences in class-specific cultural styles make campus life difficult for non-affluent blacks and discuss the implications of the findings for future research on black college experiences.  相似文献   

5.
  总被引:2,自引:0,他引:2  
Deficits in social interaction are important early markers for autism and related neurodevelopmental disorders with strong genetic components. Standardized behavioral assays that measure the preference of mice for initiating social interactions with novel conspecifics would be of great value for mutant mouse models of autism. We developed a new procedure to assess sociability and the preference for social novelty in mice. To quantitate sociability, each mouse was scored on measures of exploration in a central habituated area, a side chamber containing an unfamiliar conspecific (stranger 1) in a wire cage, or an empty side chamber. In a secondary test, preference for social novelty was quantitated by presenting the test mouse with a choice between the first, now-familiar, conspecific (stranger 1) in one side chamber, and a second unfamiliar mouse (stranger 2) in the other side chamber. Parameters scored included time spent in each chamber and number of entries into the chambers. Five inbred strains of mice were tested, C57BL/6J, DBA/2J, FVB/NJ, A/J and B6129PF2/J hybrids. Four strains showed significant levels of sociability (spend- ing more time in the chamber containing stranger 1 than in the empty chamber) and a preference for social novelty (spending more time in the chamber containing stranger 2 than in the chamber containing the now-familiar stranger 1). These social preferences were observed in both male and female mice, and in juveniles and adults. The exception was A/J, a strain that demonstrated a preference for the central chamber. Results are discussed in terms of potential applications of the new methods, and the proper controls for the interpretation of social behavior data, including assays for health, relevant sensory abilities and motor functions. This new standardized procedure to quantitate sociability and preference for social novelty in mice provides a method to assess tendencies for social avoidance in mouse models of autism.  相似文献   

6.
    
Michael Banton's paper provides fascinating insights into his long-running intellectual disagreements with John Rex, the other major post-war figure in the sociology of ‘race relations’. Published work and personal recollections are supplemented by a series of communications by letter to flesh out the precise nature of these debates. They reveal differing views on the ontological status of ‘race’, race relations and racism, as well as a number of criticisms of Rex's work. He argues that Rex was wrong to put so much faith in the ability of classical sociology to address these concerns, and that there was a disjuncture between theory, methods and substance in his empirical work. There is also a suggestion that Rex played down the significance of racism. The greatest difference between them, however, lay in their divergent views on the role of sociology and the sociologist.  相似文献   

7.
    
If two forest types are poorly related, their conservation status will have limited mutual relevance. Conversely, if two forest types are highly related, their conservation status will have substantial mutual relevance. The interpretation of measured conditions within any landscape class will be sensitive to conditions in other landscape classes in a region according to the strength of relations, or affinity, between them. This paper investigates the importance of recognising and accounting for relations between landscape classes in the context of assessing the conservation status of natural environments and in determining priorities for conservation. A typology of relations between landscape classes is presented and the concept of the 'relational profile' is introduced. The investigation is based on an analysis of native cover loss in environments identified in far south-east Australia. Environmental heterogeneity is defined in terms of climatic attributes which describe meso-scaled thermal and water resources distributions. Environment classes and relations between classes are defined and expressed using agglomerative clustering techniques. A comparison is made of two environments in the region that retain small proportions of extant natural cover, showing that very different conditions exist in the other environments to which they respectively relate. The study demonstrates that conclusions about the conservation status of environments and the identification of opportunities for environmental protection may depend on conditions in related environments and the strength of relations between these environments. The implications of the analysis for strategic assessment in conservation are discussed.  相似文献   

8.
Abstract

The lives of transnational groups and individuals are marked by a spatial and imaginary split: a phenomenon wherein identity, belonging and representation have become increasingly elusive concepts, and the realm of the ‘cultural’ vastly important. And, the theoretical compasses of cosmopolitanism and transnationalism are particularly relevant and illuminating in considering social space, mediated communication and belonging in relation to urban diasporic communities and gendered subjectivities. The aim of this paper is to address expressions of identity and belonging at the intersection of online communicative practice and offline spatial formations, with a focus on the specificities of gendered constructions of sociality and subjectivity in the diaspora.  相似文献   

9.
Research at the site of Puerto Escondido in northern Honduras produced evidence of foodways in one of the earliest known villages in Central America. Much of the material recovered is related directly or indirectly to the production, preparation, and consumption of food. In everyday practice, the organization of food consumption in villages like this would have been central to the reproduction of social relations. In other early villages in Central America, the use of food for political ends has been given a causal role in the development of social stratification. Drawing on evidence for one particular food practice, the preparation and consumption of fermented and unfermented cacao beverages, we argue that it is through the elaboration of cuisine—regimes of taste and presentation—that food production, serving, and consumption played both of these roles.  相似文献   

10.
    
When Wilson argued back in 1978 that by the mid-twentieth century social class mattered more for getting ahead than race, he launched a rigorous scholarly debate about the relative importance of race and class that continues to this day. Since the 1970s, the gap between the black middle class and the black poor has widened, lending credibility to Wilson's claim, but also raising new research questions for scholars to ponder. In this essay, I suggest that extending Wilson's model to include a new period, encompassing the last twenty-five years, would help to illuminate more recent structural advantages that contribute to class privilege in American society as well an emerging fault line within the black middle class.  相似文献   

11.
    
This paper analyzes the immensely popular animated film Ratatouille as a social and cultural document. It begins with a recapitulation of the movie's story line – a saga of an astute, ambitious and talented rat, who becomes transformed into an accomplished haute cuisine chef. The film illustrates recent anthropological writings on the central role of cooking in human evolution. It also shows how varieties of cooking and table manners provide key indications of the civilizing process. Ultimately, Ratatouille explores distinctions and similarities between “man and beast”. It communicates the idea that all living creatures share more in terms of aptitude and feeling than divides them.  相似文献   

12.
    
Different rat and mouse models are used in studies of social interactions. Simple behavioral measures, which are commonly used in the laboratory, allow to perform relatively short experiments and to use multiple brain manipulation techniques. However, too much focus on the simplest behavioral models generates a serious risk of reducing ecological validity or even studying phenomena which would never happen outside of the laboratory. In this review, we discuss the suitability of mice and rats as model organisms for studying social behaviors, with focus on social transmission of fear paradigms. First, we briefly introduce the concept of domestication and what impact it had on laboratory rodents. Then, we present two aspects of social behaviors, sociability and dominance, which are crucial for social organization in these species. Finally, we present experimental models used for studying how animals transmit information about danger between each other, and how these models may reflect what happens in the natural environment. We discuss the difficulties that arise from our limited knowledge of rat and mouse ecology, especially their social life. We also explore the subject of balancing ecological validity and controllability in rodent models of social behaviors, the latter being particularly important for studying brain activity. Although it is very challenging, an efficient program for social neuroscience research should, in our opinion, aim at bridging the gap between laboratory and field studies.  相似文献   

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14.
李辉霞  陈世熠  林锦标 《生态学报》2022,42(18):7577-7586
运用实地调研和理论分析的方法对中国生态资源价值化体系的变迁进行分析,并进一步提出耦合生态资本和社会资本的生态资源价值化理论框架。按照价值化的逻辑总结出价值化两条路径:流量价值化和存量价值化,并通过梳理科技文献指出现有研究的不足:流量价值化缺乏\"生态视角\"和存量价值化缺乏\"整体视角\"。对比分析了不同时期中国生态资源价值化变迁的特点,发现计划经济时期国家通过生态资源的公有和单要素管理,实现流量、存量的管控和生态资源收益的合理分配;在市场化改革前期,生态资源使用权与所有权的收益逐步分离,激励了社会资本带动生产力发展,但也造成了生态危机和贫富差距拉大等问题;在市场化后期,各地不断实践探索全生态要素治理,通过政府市场社会多方位联动追求共同富裕和生态文明目标的实现。指出生态资源价值体系与社会历史进程的关系,揭示了其背后社会资本与生态资本的耦合关系。最后,提出在市场化改革后期需要坚持\"公共性\"政党的领导,并在耦合社会资本与生态资本这一思想指导下构建的县镇村三级联动的生态资源价值化框架。研究结论为乡村振兴背景下中国生态资源价值化体系提供理论指导,为中国共产党领导下生态文明思想的人民性提供政治经济学的解释。  相似文献   

15.
    
ABSTRACT

There is growing interest in personality profiles associated with morningness–eveningness to foster an understanding of the behaviors and mental states of chronotypes. This study aimed to analyze the domains of emotionality, activity and sociability (EAS) temperament in relation to morningness–eveningness in adolescents. A sample of 539 school pupils aged 13–19 years completed the EAS Temperament Survey, the Composite Scale of Morningness and the Munich Chronotype Questionnaire. Amongst the five EAS domains (emotionality-distress, emotionality-fearfulness, emotionality-anger, activity and sociability), greater emotionality-anger was related to eveningness, while greater emotionality-distress was related to lower social jet lag. The results suggest that evening chronotypes can be temperamentally inclined to anger. The possible mechanisms of this association are discussed.  相似文献   

16.
    
The decision to leave or join a group is important as group size influences many aspects of organisms' lives and their fitness. This tendency to socialise with others, sociability, should be influenced by genes carried by focal individuals (direct genetic effects) and by genes in partner individuals (indirect genetic effects), indicating the trait's evolution could be slower or faster than expected. However, estimating these genetic parameters is difficult. Here, in a laboratory population of the cockroach Blaptica dubia, I estimate phenotypic parameters for sociability: repeatability (R) and repeatable influence (RI), that indicate whether direct and indirect genetic effects respectively are likely. I also estimate the interaction coefficient (Ψ), which quantifies how strongly a partner's trait influences the phenotype of the focal individual and is key in models for the evolution of interacting phenotypes. Focal individuals were somewhat repeatable for sociability across a 3-week period (R = 0.080), and partners also had marginally consistent effects on focal sociability (RI = 0.053). The interaction coefficient was non-zero, although in opposite sign for the sexes; males preferred to associate with larger individuals (Ψmale = −0.129), while females preferred to associate with smaller individuals (Ψfemale = 0.071). Individual sociability was consistent between dyadic trials and in social networks of groups. These results provide phenotypic evidence that direct and indirect genetic effects have limited influence on sociability, with perhaps most evolutionary potential stemming from heritable effects of the body mass of partners. Sex-specific interaction coefficients may produce sexual conflict and the evolution of sexual dimorphism in social behaviour.  相似文献   

17.
    
This research examines how the internal social dynamics of Roma communities at home shape their propensity to migrate. It is theoretically grounded in the literature on social capital and focuses on two core concepts: ‘migration-rich’ and ‘migration-poor’ communities. The research is based on in-depth interviews and informal discussions with Roma from six (mainly rural) communities of Transylvania (Romania) and includes qualitative data gathered from migrants as well as from people who did not migrate. The findings challenge existing conceptualizations of Roma migration as either explained by poverty alone or by cultural arguments (such as nomadism). This paper indicates that even in the context of severe poverty, social networks are actually decisive for migration. It demonstrates that the patterns of migration tend to be community-specific and shaped by a locally shared culture (ethos) on migration. The research suggests policy choices according to the community profile and its internal dynamics.  相似文献   

18.
    
The field of behavioral genetics has recently begun to explore the effect of age on social behaviors. Such studies are particularly important, as certain neuropsychiatric disorders with abnormal social interactions, like autism and schizophrenia, have been linked to older parents. Appropriate social interaction can also have a positive impact on longevity, and is associated with successful aging in humans. Currently, there are few genetic models for understanding the effect of aging on social behavior and its potential transgenerational inheritance. The fly is emerging as a powerful model for identifying the basic molecular mechanisms underlying neurological and neuropsychiatric disorders. In this review, we discuss these recent advancements, with a focus on how studies in Drosophila melanogaster have provided insight into the effect of aging on aspects of social behavior, including across generations.  相似文献   

19.
    
Behavioral ecologists have recently begun using multilevel modeling for the analysis of social behavior. We present a multilevel modeling formulation of the Social Relations Model that is well suited for the analysis of dyadic network data. This model, which we adapt for count data and small datasets, can be fitted using standard multilevel modeling software packages. We illustrate this model with an analysis of meal sharing among Ye'kwana horticulturalists in Venezuela. In this setting, meal sharing among households is predicted by an association index, which reflects the amount of time that members of the households are interacting. This result replicates recent findings that interhousehold food sharing is especially prevalent among households that interact and cooperate in multiple ways. We discuss opportunities for human behavioral ecologists to expand their focus to the multiple currencies and cooperative behaviors that characterize interpersonal relationships in preindustrial societies. We discuss possible extensions to this statistical modeling approach and applications to research by human behavioral ecologists and primatologists. Am J Phys Anthropol 157:507–512, 2015. © 2015 Wiley Periodicals, Inc.  相似文献   

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