Measuring Neural and Behavioral Activity During Ongoing Computerized Social Interactions: An Examination of Event-Related Brain Potentials

Social exclusion is a complex social phenomenon with powerful negative consequences. Given the impact of social exclusion on mental and emotional health, an understanding of how perceptions of social exclusion develop over the course of a social interaction is important for advancing treatments aimed at lessening the harmful costs of being excluded. To date, most scientific examinations of social exclusion have looked at exclusion after a social interaction has been completed. While this has been very helpful in developing an understanding of what happens to a person following exclusion, it has not helped to clarify the moment-to-moment dynamics of the process of social exclusion. Accordingly, the current protocol was developed to obtain an improved understanding of social exclusion by examining the patterns of event-related brain activation that are present during social interactions. This protocol allows greater precision and sensitivity in detailing the social processes that lead people to feel as though they have been excluded from a social interaction. Importantly, the current protocol can be adapted to include research projects that vary the nature of exclusionary social interactions by altering how frequently participants are included, how long the periods of exclusion will last in each interaction, and when exclusion will take place during the social interactions. Further, the current protocol can be used to examine variables and constructs beyond those related to social exclusion. This capability to address a variety of applications across psychology by obtaining both neural and behavioral data during ongoing social interactions suggests the present protocol could be at the core of a developing area of scientific inquiry related to social interactions.     

Equality and exclusion: ‘Racism’ in a Swedish town

Research on racism is prolific but ethnographic studies of what could be termed racism in everyday local social life are much less common. The article examines local Swedish classifications of difference and belonging in relation to meaning of racism and considers how ideologies of equality relate to forms of exclusion and racist expressions. The aim is to discuss the articulation of distinctions of exclusion and inclusion in everyday contexts through the presence of the refugee Other. The material is based on fieldwork conducted during the first half of the 1990s in a small town in central Sweden. The establishment of a refugee reception center in the town had concrete and symbolic repercussions on the local residents, making people's sense of belonging and processes of exclusion more openly conflictual.     

The medicalization of "nature" in the "artificial body": surrogate motherhood in Israel

In this article, I draw on anthropological and feminist scholarship on the body and the nature/culture divide as a framework for understanding the place of surrogate mothers in a conceptual ideology that connects motherhood with nature. I explore links between the medicalization of childbirth in Israel and the personal agency of surrogate mothers as relayed through interviews. Taking the patriarchal context of the Israeli surrogacy law of 1996 into consideration, I underscore surrogates' imaginative use of medical metaphors as tools for the subversion of surrogacy's threatening social connotations. By redefining the surrogate body as "artificial" and locating "nature" in the commissioning mother's body, surrogates adopt medical rhetoric to transform surrogacy from a transgressive act into an alternative route toward achieving normative Israeli national reproductive goals.     

Preparing for motherhood: authoritative knowledge and the undercurrents of shared experience in two childbirth education courses in Cagliari, Italy

This article compares the social settings and teaching organization of two differently structured childbirth education courses in Cagliari, Italy, in order to understand how social processes and contexts work to negotiate authoritative knowledge. Although the explicit goal of both courses was to transmit biomedical knowledge, knowledge based in women's experience nonetheless dominated some course sessions. Thus, I examine the social processes and interactions that enabled women's experiential knowledge to dominate discussions and subsequently share in the authority of biomedical knowledge in some situations. Because few existing studies do so, this article also addresses a gap in our current understanding by exploring not only how experiential knowledge comes to share authority with biomedical knowledge, but also, why it is important that it does. Focusing on the efficacy of differently structured courses, this article informs the planning of future childbirth education courses in similar settings.     

Fertility of the Tibetans migrated to Northen India

This paper aims to study the fertility rate of the migrant Tibetans residing in Northern India and finding out the factors which are affecting the fertility level among them. Data are reported on age at menarche, age at marriage, first childbirth, use of contraception, widowhood, migration and on various fertility measures in the Tibetan of Northern India living at low and moderate altitude (600–2000 m), who have migrated from high altitude (4000 m above sea level) in Tibet. The migrant Tibetans reported a relatively lower fertility as compared to the high and moderate altitude populations. This lower fertility is mostly attributable to the use of contraception, the later mean age at marriage and first childbirth, and relatively high proportion of widows in the migrant Tibetans. However, the social as well as biological changes in population during migration should not be overlooked, which have a sufficient impact on fertility.     

Abnormal neural responses to social exclusion in schizophrenia

Social exclusion is an influential concept in politics, mental health and social psychology. Studies on healthy subjects have implicated the medial prefrontal cortex (mPFC), a region involved in emotional and social information processing, in neural responses to social exclusion. Impairments in social interactions are common in schizophrenia and are associated with reduced quality of life. Core symptoms such as delusions usually have a social content. However little is known about the neural underpinnings of social abnormalities. The aim of this study was to investigate the neural substrates of social exclusion in schizophrenia. Patients with schizophrenia and healthy controls underwent fMRI while participating in a popular social exclusion paradigm. This task involves passing a 'ball' between the participant and two cartoon representations of other subjects. The extent of social exclusion (ball not being passed to the participant) was parametrically varied throughout the task. Replicating previous findings, increasing social exclusion activated the mPFC in controls. In contrast, patients with schizophrenia failed to modulate mPFC responses with increasing exclusion. Furthermore, the blunted response to exclusion correlated with increased severity of positive symptoms. These data support the hypothesis that the neural response to social exclusion differs in schizophrenia, highlighting the mPFC as a potential substrate of impaired social interactions.     

Primate social behavior and ostracism

Ostracism, and its attendant processes, emigration and immigration, are now recognized as basic mechanisms intrinsic to the long-term adaptation of primate society. Ostracism, defined as socially determined exclusion from the resources and opportunities necessary to successful reproduction, is a basic mechanism by which individuals strive to maximize their own reproductive success at the expense of others. Among males this process most often involves exclusion from opportunities to fertilize females (zygote formation) whereas among females it leads to competition for the resources necessary to raise these zygotes to adulthood. Ostracism from intrasexual competition may be so intense that it leads to the migration of less successful individuals into social groups offering greater opportunity. The “passports” most often used in primate immigration are sexual affinity and kinship alliance. Migration carries high risk and is associated with increased mortality and morbidity. Nevertheless, ostracism, emigration, and immigration remain as the basic social processes by which the ratio of resources to individuals shifts and balances from one year to the next. Such adjustments are made through the process of individual “decisions” and “strategies” to optimize personal reproductive success, but their net effect is to constantly redistribute individuals in relation to resources vital to reproduction.     

Big brains, small worlds: material culture and the evolution of the mind

New developments in neuroimaging have demonstrated that the basic capacities underpinning human social skills are shared by our closest extant primate relatives. The challenge for archaeologists is to explain how complex human societies evolved from this shared pattern of face-to-face social interaction. We argue that a key process was the gradual incorporation of material culture into social networks over the course of hominin evolution. Here we use three long-term processes in hominin evolution-encephalization, the global human diaspora and sedentism/agriculture-to illustrate how the cultural transmission of material culture allowed the 'scaling up' of face-to-face social interactions to the global societies known today. We conclude that future research by neuroimagers and archaeologists will need to investigate the cognitive mechanisms behind human engagement with material culture as well as other persons.     

Effects of Pre-Experience of Social Exclusion on Hypothalamus-Pituitary-Adrenal Axis and Catecholaminergic Responsiveness to Public Speaking Stress

Backround

Being socially excluded is associated with a variety of psychological changes and with an increased risk of disease. Today, the immediate physiological consequences of being socially excluded are not well understood. In two recent studies employing a standardized exclusion paradigm (Cyberball) we found social exclusion in this virtual game did not alter cortisol secretion directly. However, exclusion pre-experience suppresses the normal cortisol response to public speaking stress in women. The present study aims to replicate our previous finding and further elucidate it by analyzing for the first time whether this alteration of cortisol-responsiveness is associated to ACTH and whether the catecholaminergic system is affected as well.

Methods

Women were randomly assigned to Cyberball-induced exclusion (SE, n = 22) or inclusion (SI, n = 21), respectively. Immediately afterwards they were subjected to public speaking stress. Salivary cortisol, plasma ACTH, catecholamines and estradiol were assessed as were psychological distress and mood.

Results

Cyberball exclusion led to a highly significant immediate increase in negative affect in excluded women. After public speaking negative affect in included women increased as well and groups no longer differed. We replicate our previous finding of cortisol non-responsiveness to public speaking stress after exclusion pre-experience and find this effect to be significantly correlated with ACTH alterations. No such effects are observed for catecholamines.

Conclusions

We replicated our previous study result of a supressed cortisol stress response after a short exclusion experience via Cyberball, thereby underlining the profound effects of social exclusion on a subsequent cortisol stress response. This further demonstrates that these alterations are associated with ACTH. Lack of effects on catecholamines is discussed in view of the tend-and-befriend hypothesis but also from a methodological perspective.     

Happiness and Social Exclusion of Indigenous Peoples in Taiwan - A Social Sustainability Perspective

IntroductionHappiness and social inclusion are important indicators of social sustainability, as recommended in the Sustainable Development Goals; however, little is known about the social sustainable development of ethnic minorities. To fill this knowledge gap, special attention is paid to understanding the issues of social exclusion and happiness in relation to the indigenous peoples in Taiwan.MethodsData used were drawn from a nationwide representativeness survey of the Taiwanese Indigenous People in 2007; it included 2,200 respondents. This study employed binary logistic regression to examine the effects of different domains of social exclusion on the likelihood of perceiving happiness; other exogenous factors, were controlled.ResultsThe results show that among the respondents, mountain indigenous peoples, females, the elderly and those who are healthier, wealthier, highly educated, possessing western beliefs, and are more likely to be happy, compared to their counterparts. As expected, the results reveal that the likelihood of being happy is higher for those who have received medical benefits, as well as those persons without housing problems or financial difficulties, compared to their excluded counterparts. However, no significant association is found between happiness and some social exclusion domains, such as child and youth benefits, and unemployment benefits.ConclusionsThe disengagement of the indigenous peoples in mainstream society, with respect to the accessibility of welfare provisions, is a crucial element in regard to social exclusion and happiness. Several policy implications for the social sustainability of indigenous peoples can be inferred from these findings. For example, providing a mobile clinical tour, on-site health counseling, or homecare service can contribute to the removal of institutional and geographic barriers to medical welfare provisions for the mountain indigenes. Moreover, the government may devote more welfare resources to assist indigenous families and tribal communities to develop their own social safety net, instead of the individual-oriented welfare provisions.     

Extent and properties of nonbulk "bound" water in crystalline lens cells

Crystalline lenses provided good material to study and measure the properties of cellular water. Different methods were used to establish the extent and properties of nonbulk water in mammalian lenses. These methods include: NMR titration analysis, a test of the osmotic properties, a test of dye exclusion In lenses with intact cell membranes and in lenses with disrupted cell membranes, and the water-holding capacity of lenses subjected to 40,000 x g for 1 hour with intact cell membranes and in lenses with disrupted cell membranes. The data from these methods, as well as other data from the literature, lead to the conclusion that most, if not all, of the water in lens cells (up to 2.2 g water/g dry mass) has motional and osmotic properties that distinguish it from bulk water. These findings call into question the common and convenient assumption that all but a small proportion of cellular water is like that in dilute solution.     

Pre-experience of social exclusion suppresses cortisol response to psychosocial stress in women but not in men

Lack of social support and social exclusion is associated with adverse effects for mental and physical health. Additionally, women appear to be more vulnerable to social triggers of health disturbances. The hypothalamus–pituitary–adrenocortical-axis (HPA axis) might play a key role in this context as it has been shown both to relate to psychosocial conditions and health outcomes and to respond differentially depending on gender. In a previous experiment we found no effects of exclusion alone (operationalized via Cyberball) on cortisol secretion. Here we examine the effects of a social exclusion pre-experience on psychological and cortisol responses to a public speaking stressor. Subjects (33 m, 34 f) were randomly assigned to social exclusion (SE) or one of two control conditions (exclusion attributed to technical default (TD) and social inclusion (SI)). Afterwards salivary cortisol and psychological responses to a public speaking paradigm were assessed. Exclusion pre-treatment does not affect psychological responses to public speaking stress though with respect to cortisol significant. Cyberball by gender and Cyberball by gender by time interactions are found. SE-women show a blunted cortisol stress response to public speaking while cortisol responses of SE-men fall between SI-men and TD-men. Pre-experience of social exclusion leads to a blunted cortisol response to stress in women but not in men. This factor might contribute to the higher vulnerability to social triggers of health disturbances observed in women.     

Pre-experience of social exclusion suppresses cortisol response to psychosocial stress in women but not in men

Lack of social support and social exclusion is associated with adverse effects for mental and physical health. Additionally, women appear to be more vulnerable to social triggers of health disturbances. The hypothalamus–pituitary–adrenocortical-axis (HPA axis) might play a key role in this context as it has been shown both to relate to psychosocial conditions and health outcomes and to respond differentially depending on gender. In a previous experiment we found no effects of exclusion alone (operationalized via Cyberball) on cortisol secretion. Here we examine the effects of a social exclusion pre-experience on psychological and cortisol responses to a public speaking stressor. Subjects (33 m, 34 f) were randomly assigned to social exclusion (SE) or one of two control conditions (exclusion attributed to technical default (TD) and social inclusion (SI)). Afterwards salivary cortisol and psychological responses to a public speaking paradigm were assessed. Exclusion pre-treatment does not affect psychological responses to public speaking stress though with respect to cortisol significant. Cyberball by gender and Cyberball by gender by time interactions are found. SE-women show a blunted cortisol stress response to public speaking while cortisol responses of SE-men fall between SI-men and TD-men. Pre-experience of social exclusion leads to a blunted cortisol response to stress in women but not in men. This factor might contribute to the higher vulnerability to social triggers of health disturbances observed in women.     

Health inequalities: new concerns about the children of single mothers.

OBJECTIVES--To show that the exclusion from conventional class based analyses of child mortality of children whose parents are classified as "unoccupied" produces a misleading picture of health inequalities. DESIGN--Reanalysis of data published in the childhood supplement of the registrar general''s decennial supplement on occupational mortality in England and Wales, which compares numerator data for registrations of deaths in children over the age of 1 but below their 16th birthday in 1979, 1980, 1982, and 1983 with data about children aged 1-15 who were enumerated at the 1981 census. RESULTS--Parents who are classified as "unoccupied" largely consist of economically inactive single mothers. Their children are estimated to represent 89% of the 614,000 aged 1-15 classified as "unoccupied" in the childhood supplement. They have the worst mortality record of all social groups--an age specific death rate of 68.8/100,000 a year, 42% worse than in social class V (48.4/100,000) and worse than that of social class I (22.8) by a factor of 3. At older ages (10-15 years) these children have a relative risk of death of 4.14 relative to classes I and II; the risk is 2.58 in children 0-4 and 2.56 in those 5-9. Relative risks of child mortality in social classes I and II in comparison to classes IV and V suggests a progressive shallowing from 2.08 at ages 1-4 to 1.37 at ages 10-15. When unoccupied parents were combined with classes IV and V and compared with classes I and II, however, inequalities seemed to be pervasive throughout childhood; the relative risks were 2.21 for those aged 1-4 and 1.98 for those aged 10-15. CONCLUSION--Children classified as unoccupied are almost certainly living in poverty as well as experiencing relatively high risks of mortality. Class based analyses which exclude them therefore produce a misleading picture of inequalities in child health. The implications for health policy are profound. Strategies to promote the nation''s health should acknowledge the importance of material and social deprivation more explicitly.     

National identity and social inclusion

In terms of our national identity, who we are and are judged to be in a particular context depends on how well our claims are regarded by those around us. Being considered not ‘one of us’ means being an outsider whether one wants to be or not. National identity may lead ultimately to social inclusion or exclusion. Using mainly 2005 survey data, this paper explores cultural markers such as ethnicity, birthplace, residence, accent and ancestry regarding claims to be ‘Scottish’. It shows that being born in Scotland enables people to make claims and to have them accepted. Claims to be Scottish by a white and a non-white person on the basis of various markers are received in much the same way. The cultural markers which people use to judge claims represent the raw materials of identity differences with the potential to become the basis of social exclusion under appropriate conditions.     

Attitude and preferences of nigerian antenatal women to social support during labour

SummaryThis was a hospital-based cross-sectional study of 224 randomly selected antenatal women receiving care at the University College Hospital, Ibadan, Nigeria. The study aimed to seek the attitude and preferences of respondents about social support during childbirth and also identify variables that may influence their decisions. Seventy-five per cent of respondents desired companionship in labour. Approximately 86% preferred their husband as companion while 7% and 5% wanted their mother and siblings as support person respectively. Reasons for their desire for social support were emotional (80.2%), spiritual (17.9%), errands (8.6%) and physical activity (6.8%). Socio-demographic variables found to be statistically significant on logistic regression analysis for the desire of a companion in labour were nulliparity (OR 3.57, 95% CI 1.49-8.52), professionals (OR 3.11, 95% CI 1.22-7.94) and women of other ethnic groups besides Yoruba (OR 2.90, 95% CI 1.02-8.26), which is the predominant ethnic group in the study area. Only those with post-secondary education were found to want their husbands as doula (OR 2.96, 95% CI 1.08-8.11). More than half of the respondents wanted information about labour prior to their experience. It is important that Nigerian women are allowed the benefit of social support during childbirth, particularly as there is a lack of one-to-one nursing care and other critical services, including epidural analgesia in labour, at many of the health care facilities in Nigeria. Men could play a pivotal role in the process of introducing support in labour so as to improve the outcome for both the mother and her newborn.     

A histochemical study of aldehyde fuchsin-positive material and "high-esterase cells" in the pineal gland of the Mongolian gerbil.

The pineal gland of the Mongolian gerbil consists of a superficial gland, stalk and deep pineal. The deep pineal differentiates postnatally. Histochemical studies of the superficial pineal gland indicate that it may be involved in the secretion of protein. Presumptive secretory material visualized by aldehyde fuchsin (AF) and chrome hematoxylin was observed along the course of blood vessels and among the pinealocytes. The distribution and texture of the AF-positive material was distinctive. It did not correspond to the pattern and texture of material stained with PAS, Sudan Black or acid orcein. Staining with AF was markedly reduced after incubation with trypsin, indicating that the AF-positive material is at least partially protein. The amount of stainable material increased with age. The AF-positive material was observed in what appeared to be interstitial or glial cells and processes, and in the processes of perivascular cells. Cells and fibrous processes with high non-specific esterase activity ("high-esterase cells") were observed among the pinealocytes and along the course of blood vessels. The distribution of the "high-esterase cells" and the morphology and texture of their esterase-containing processes were remarkably similar to the morphology and distribution of the material that stained with AF. It may be that the "high-esterase cells" contain AF-positive material. The "high-esterase cells" hydrolyzed both alpha-naphthyl acetate and alpha-naphthyl butyrate. The pinealocytes hydrolyzed only alpha-naphthyl acetate. The "high-esterase cells" appear to form a distinct class of cells within the superficial pineal gland. They are tentatively identified as a type of glial cell.     

In Defense of a Folk Model: The "Skipper Effect" in the Icelandic Cod Fishery

The Icelandic folk model of fishing success emphasizes the importance of the skipper. The validity of this folk model has recently been hotly debated in the social science literature. In this study an attempt is made to estimate the role of the skipper in fishing success. First, we document by a national survey the composition of the folk model of fishing success held by the Icelandic public. Second, drawing on extensive interview data we outline the model of fishing success proposed by skippers themselves. Third, we test this folk science of the skipper by means of visual and statistical analysis against a social science model that emphasizes the role of material factors. The results show that fishing success is not determined by technological and material factors, leaving plenty of room for human factors, such as the skills and knowledge of the skipper. These results are consistent with folk notions of the skipper effect, but contradictory to earlier results of social science. Finally, the results are discussed in a theoretical context with reference to resource management and the nature of folk models.