A cross-cultural study of beliefs about the influence of food sharing on interpersonal relationships and food choices

We conducted two studies on participants from China and the USA to investigate their beliefs about food sharing. In Study 1, the participants were asked to rate the influence of different types of sharing on the interpersonal relationships between two individuals. Compared to sharing non-food material, both groups expected sharing food to exert a more positive influence on the intimacy and mutual trust between the sharer and the recipient. In Study 2A, the participants were asked to rate to which extent it is appropriate to share a certain food with another person. The results revealed that the solid or liquid state and the type of foods influenced both groups of participants' beliefs about whether a food is appropriate for sharing. In Study 2B, the participants were asked to rate the likelihood of ordering certain foods when they were eating alone, eating together, or sharing food with another person in a restaurant scenario. When sharing food with other people, both groups of participants were less likely to order foods that were inappropriate for sharing and more likely to order foods that were appropriate for sharing, thus suggesting the influence of beliefs about food sharing on food choices. Despite some cross-cultural differences in both studies, the results revealed some cross-cultural shared beliefs about food sharing. These findings suggest that people's beliefs regarding the positive influence of food sharing on interpersonal relationships influence food choices and may help explain why foods are shared while eating with others even there is no social obligation to do so.

Do you feel happy when other members look happy? Moderating effect of community-level social capital on interconnection of happiness

One's happiness is expected to be affected by the happiness of surrounding others. This socio-psychological nature of happiness, however, has not been fully examined in the literature of social psychology. The current study examined if this "psychological interconnection of happiness" occurs when (i) individuals have strong personal social capital and/or (ii) individuals belong to a community where other members have strong social capital. We analysed a large social survey dataset sampled from 408 communities in Japan (N = 7295). The psychological interconnection of happiness was measured by calculating the correlation between individual happiness and perceived community happiness. The multilevel analyses revealed that the psychological interconnection of happiness was moderated by community-level social capital above and beyond individual-level social capital, while individual-level social capital did not have a significant moderation effect.

CAN Algorithm: An Individual Level Approach to Identify Consequence and Norm Sensitivities and Overall Action/Inaction Preferences in Moral Decision-Making

Recently, a multinomial process tree model was developed to measure an agent's consequence sensitivity, norm sensitivity, and generalized inaction/action preferences when making moral decisions (CNI model). However, the CNI model presupposed that an agent considers consequences-norms-generalized inaction/action preferences sequentially, which is untenable based on recent evidence. Besides, the CNI model generates parameters at the group level based on binary categorical data. Hence, the C/N/I parameters cannot be used for correlation analyses or other conventional research designs. To solve these limitations, we developed the CAN algorithm to compute norm and consequence sensitivities and overall action/inaction preferences algebraically in a parallel manner. We re-analyzed the raw data of the original CNI model to test the methodological predictions. Our results demonstrate that: (1) the C parameter is approximately equal between the CNI model and CAN algorithm; (2) the N parameter under the CNI model approximately equals N/(1 - C) under the CAN algorithm; (3) the I parameter and A parameter are reversed around 0.5 - the larger the I parameter, the more the generalized inaction versus action preference and the larger the A parameter, the more overall action versus inaction preference; (4) tests of differences in parameters between groups with the CNI model and CAN algorithm led to almost the same statistical conclusion; (5) parameters from the CAN algorithm can be used for correlational analyses and multiple comparisons, and this is an advantage over the parameters from the CNI model. The theoretical and methodological implications of our study were also discussed.

COVID-19 Infection Risk and Depressive Symptoms Among Young Adults During Quarantine: The Moderating Role of Grit and Social Support

Prior research has demonstrated that the adverse consequences of the coronavirus disease 2019 (COVID-19) pandemic may go beyond its economic hardships and physical health concerns, having a significant influence on psychological distress for individuals under quarantine. Nevertheless, relatively little attention has been paid to exploring the risk and protective factors in the link between COVID-19 infection risk and psychological distress among young adults. Following a socioecological framework, the current study examines the moderating role of grit (perseverance and consistency) and social support in the association between COVID-19 infection risk and depressive symptoms. A sample of 1,251 young adults under home quarantine (62.6% female; M age = 20.92 years, SD = 1.47; age ranged from 18 to 25 years) was involved in this study, and they were asked to complete a set of self-reported questionnaires online. Results of a linear regression analysis exhibited that COVID-19 infection risk was positively associated with depressive symptoms in young adults in quarantine. Moreover, moderation analyses showed that this association was moderated by perseverance and social support. To be specific, for those reporting higher levels of social support, this linkage was not significantly positive; in contrast, for those reporting lower levels of social support, perseverance was a significant protective factor for depressive symptoms when young adults were exposed to a high infection risk of COVID-19. The current study suggests that greater social support is essential to helping young adults deal with possible negative emotions in the context of the COVID-19 pandemic. Moreover, university-based counseling services should pay specific attention to those young adults with relatively insufficient social support resources and low levels of perseverance.

The comparison of the wisdom view in Chinese and Western cultures

Wisdom views in different cultural contexts are closely connected with the corresponding culture's worldview. Some results are found by comparing the wisdom concepts in Chinese and Western cultures: Firstly, the early wisdom concepts, both in China and the West, contain the elements of intelligence and virtue. Whereas, from the Enlightenment to the Piagetian school, the western concept of wisdom has then shifted to the role of cognition and knowledge; By contrast, the traditional Chinese wisdom concept has been treating wisdom as a virtue. Modern Chinese and western wisdom psychologists are inclined to accept the wisdom meta-theory of "integration of intelligence and virtue". Secondly, both Chinese and the Western philosophy advocate using wisdom to solve real-life problems. Western thinkers focus on practical problems in the material world, i.e. reconciling conflicts between people and the world through understanding and changing the environment. However, Chinese philosophers focus on internal spiritual problems, i.e. improving the individual realm to solve the contradictions inside oneself. Thirdly, both China and the West highlight the comprehensive application of multiple thinking modes. While comparing with the west, which is excelled in using logical and analytical thinking modes and utilizing rational cognition, China is far better at using dialectical and holistic thinking modes and applying intuitive comprehension.

Psychology as a Historical Science

Psychology has traditionally seen itself as the science of universal human cognition, but it has only recently begun seriously grappling with cross-cultural variation. Here we argue that the roots of cross-cultural variation often lie in the past. Therefore, to understand not only how but also why psychology varies, we need to grapple with cross-temporal variation. The traces of past human cognition accessible through historical texts and artifacts can serve as a valuable, and almost completely unutilized, source of psychological data. These data from dead minds open up an untapped and highly diverse subject pool. We review examples of research that may be classified as historical psychology, introduce sources of historical data and methods for analyzing them, explain the critical role of theory, and discuss how psychologists can add historical depth and nuance to their work. Psychology needs to become a historical science if it wants to be a genuinely universal science of human cognition and behavior.

A cross-country examination of emotional eating, restrained eating and intuitive eating: Measurement Invariance across eight countries

This study examined the measurement invariance of three scales that assessed emotional eating, restrained eating, and intuitive eating across eight countries (Australia, Belgium, Canada, China, Italy, Japan, Spain and the United States) in order to determine their suitability for cross-country body image research. A total of 6272 young adults took part in this study. Participants completed an online survey including the Emotional Eating subscale of the Three Factor Eating Questionnaire-Revised 21, the Restraint subscale of the Eating Disorder Examination Questionnaire, and the Reliance on Hunger and Satiety Cues subscale of The Intuitive Eating Scale-2. Multi-group confirmatory factor analysis was used to evaluate potential cross-country differences in functioning of the measures. Partial invariance for all three scales was found, with only minor levels of non-invariance identified. Multiple indicator multiple cause models identified BMI and gender as potential influences on scores for these measures. Sources of invariance across groups are discussed, as well as implications for further substantive research across countries involving these measures.

How fear and collectivism influence public's preventive intention towards COVID-19 infection: a study based on big data from the social media

BACKGROUND

Despite worldwide calls for precautionary measures to combat COVID-19, the public's preventive intention still varies significantly among different regions. Exploring the influencing factors of the public's preventive intention is very important to curtail the spread of COVID-19. Previous studies have found that fear can effectively improve the public's preventive intention, but they ignore the impact of differences in cultural values. The present study examines the combined effect of fear and collectivism on the public's preventive intention towards COVID-19 through the analysis of social media big data.

METHODS

The Sina microblog posts of 108,914 active users from Chinese mainland 31 provinces were downloaded. The data was retrieved from January 11 to February 21, 2020. Afterwards, we conducted a province-level analysis of the contents of downloaded posts. Three lexicons were applied to automatically recognise the scores of fear, collectivism, and preventive intention of 31 provinces. After that, a multiple regression model was established to examine the combined effect of fear and collectivism on the public's preventive intention towards COVID-19. The simple slope test and the Johnson-Neyman technique were used to test the interaction of fear and collectivism on preventive intention.

RESULTS

The study reveals that: (a) both fear and collectivism can positively predict people's preventive intention and (b) there is an interaction of fear and collectivism on people's preventive intention, where fear and collectivism reduce each other's positive influence on people's preventive intention.

CONCLUSION

The promotion of fear on people's preventive intention may be limited and conditional, and values of collectivism can well compensate for the promotion of fear on preventive intention. These results provide scientific inspiration on how to enhance the public's preventive intention towards COVID-19 effectively.

How evolutionary behavioural sciences can help us understand behaviour in a pandemic

The COVID-19 pandemic has brought science into the public eye and to the attention of governments more than ever before. Much of this attention is on work in epidemiology, virology and public health, with most behavioural advice in public health focusing squarely on 'proximate' determinants of behaviour. While epidemiological models are powerful tools to predict the spread of disease when human behaviour is stable, most do not incorporate behavioural change. The evolutionary basis of our preferences and the cultural evolutionary dynamics of our beliefs drive behavioural change, so understanding these evolutionary processes can help inform individual and government decision-making in the face of a pandemic. Lay summary: The COVID-19 pandemic has brought behavioural sciences into the public eye: Without vaccinations, stopping the spread of the virus must rely on behaviour change by limiting contact between people. On the face of it, "stop seeing people" sounds simple. In practice, this is hard. Here we outline how an evolutionary perspective on behaviour change can provide additional insights. Evolutionary theory postulates that our psychology and behaviour did not evolve to maximize our health or that of others. Instead, individuals are expected to act to maximise their inclusive fitness (i.e, spreading our genes) - which can lead to a conflict between behaviours that are in the best interests for the individual, and behaviours that stop the spread of the virus. By examining the ultimate explanations of behaviour related to pandemic-management (such as behavioural compliance and social distancing), we conclude that "good of the group" arguments and "one size fits all" policies are unlikely to encourage behaviour change over the long-term. Sustained behaviour change to keep pandemics at bay is much more likely to emerge from environmental change, so governments and policy makers may need to facilitate significant social change - such as improving life experiences for disadvantaged groups.

The Taiji Model of Self II: Developing Self Models and Self-Cultivation Theories Based on the Chinese Cultural Traditions of Taoism and Buddhism

Based on the construction of the "Taiji Model of Confucian Self" that aims to explain self-structure, the progression of self-cultivation and the dominion of person-making in the context of Chinese Confucian culture, according to the ideas of Taoism and Buddhism, the present study develops the "Taiji Model of Taoist Self" and the "Taiji Model of Buddhist Self" and identifies four realms of Taoist self-cultivation and five realms of Buddhist self-cultivation. In light of the Taiji Model of Taoist Self, self-structure can be divided into the soft self (the Yin part) and the hard self (the Yang part). The Taiji Model of Taoist Self splits the process of self-cultivation into four realms: suren (vulgarian), xianren (solon), shengren (saint), and zhenren (immortal). The Taiji Model of Buddhist Self splits self-structure into the dusty self (the Yin part) and the pure self (the Yang part) and divides the process of self-cultivation into five realms: Humans and Heaven, Arhat, Pratyekabuddha, Bodhisattva, and Buddha.

Self-reliance crowds out group cooperation and increases wealth inequality

Humans establish public goods to provide for shared needs like safety or healthcare. Yet, public goods rely on cooperation which can break down because of free-riding incentives. Previous research extensively investigated how groups solve this free-rider problem but ignored another challenge to public goods provision. Namely, some individuals do not need public goods to solve the problems they share with others. We investigate how such self-reliance influences cooperation by confronting groups in a laboratory experiment with a safety problem that could be solved either cooperatively or individually. We show that self-reliance leads to a decline in cooperation. Moreover, asymmetries in self-reliance undermine social welfare and increase wealth inequality between group members. Less dependent group members often choose to solve the shared problem individually, while more dependent members frequently fail to solve the problem, leaving them increasingly poor. While self-reliance circumvents the free-rider problem, it complicates the governing of the commons.

Cooperation among humans is threatened by the free-rider problem. Here the authors identify another challenge to human cooperation: self-reliance, the ability to solve shared problems individually. The experiment reveals that self-reliance crowds out cooperation and increases wealth inequality.

Culture influences how people divide continuous sensory experience into events

Everyday experience is divided into meaningful events as a part of human perception. Current accounts of this process, known as event segmentation, focus on how characteristics of the experience (e.g., situation changes) influence segmentation. However, characteristics of the viewers themselves have been largely neglected. We test whether one such viewer characteristic, their cultural background, impacts online event segmentation. Culture could impact event segmentation (1) by emphasizing different aspects of experiences as being important for comprehension, memory, and communication, and (2) by providing different exemplars of how everyday activities are performed, which objects are likely to be used, and how scenes are laid out. Indian and US viewers (N = 152) identified events in everyday activities (e.g., making coffee) recorded in Indian and US settings. Consistent with their cultural preference for analytical processing, US viewers segmented the activities into more events than did Indian viewers. Furthermore, event boundaries identified by US viewers were more strongly associated with visual changes, whereas boundaries identified by Indian viewers were more strongly associated with goal changes. There was no evidence that familiarity with an activity impacted segmentation. Thus, culture impacts event perception by altering the types of information people prioritize when dividing experience into meaningful events.

Physical topography is associated with human personality

Regional differences in personality are associated with a range of consequential outcomes. But which factors are responsible for these differences? Frontier settlement theory suggests that physical topography is a crucial factor shaping the psychological landscape of regions. Hence, we investigated whether topography is associated with regional variation in personality across the United States (n = 3,387,014). Consistent with frontier settlement theory, results from multilevel modelling revealed that mountainous areas were lower on agreeableness, extraversion, neuroticism and conscientiousness but higher on openness to experience. Conditional random forest algorithms confirmed mountainousness as a meaningful predictor of personality when tested against a conservative set of controls. East-west comparisons highlighted potential differences between ecological (driven by physical features) and sociocultural (driven by social norms) effects of mountainous terrain.

A Structural Equation Model of Perceived Autonomy Support and Growth Mindset in Undergraduate Students: The Mediating Role of Sense of Coherence

Although prior research has extensively documented the correlates of growth mindset, little is known about its antecedents in undergraduate students. Guided by the self-determination theory, the current study investigated the association of perceived autonomy support (i.e., parental autonomy support and teacher autonomy support) with growth mindset and assessed whether sense of coherence mediated this association. A total of 1,030 Chinese undergraduate students (62.4% females; M _age = 20.44, SD = 1.52) aged from 18 to 25 years were involved in this study; they were asked to fill out a set of self-reported questionnaires. Results of the structural equation modeling showed that sense of coherence fully mediated the association between parental autonomy support and growth mindset and between teacher autonomy support and growth mindset. More precisely, parental autonomy support and teacher autonomy support were each positively associated with sense of coherence, which in turn was positively related to growth mindset. The current findings further confirm the beneficial effect of autonomy support on individuals' adaptive skills in a collective cultural context, suggesting that autonomy-supportive parents and teachers can contribute to undergraduate students' growth mindset through the role of sense of coherence.

The Association Between Threat and Politics Depends on the Type of Threat, the Political Domain, and the Country

Theories link threat with right-wing political beliefs. We use the World Values Survey (60,378 participants) to explore how six types of threat (e.g., economic, violence, and surveillance) are associated with multiple political beliefs (e.g., cultural, economic, and ideological identification) in 56 countries/territories. Multilevel models with individuals nested in countries revealed that the threat-political belief association depends on the type of threat, the type of political belief, and the country. Economic-related threats tended to be associated with more left-wing economic political beliefs and violence-related threats tended to be associated with more cultural right-wing beliefs, but there were exceptions to this pattern. Additional analyses revealed that the associations between threat and political beliefs were different across countries. However, our analyses identified few country characteristics that could account for these cross-country differences. Our findings revealed that political beliefs and perceptions of threat are linked, but that the relationship is not simple.

Why competitive productivity sometimes goes too far: a multilevel evolutionary model of “karoshi”

Purpose

The aim of this paper is to outline an innovative multilevel conceptual model capable of explaining “karoshi” (death from overwork) and its relationship to molecular-, micro-, meso- and macro-competitive productivity (CP).

Design/methodology/approach

A theoretical model, grounded in the evolutionary biological, psychological, organizational and sociological literatures, is provided.

Findings

Karoshi is a function of molecular (genetic), micro (individual), meso (organizational) and macro (cultural) evolutionary forces. It is also demonstrated to be a function of time, geography, agri-climate and cultural and ethnic homogeneity.

Research limitations/implications

The analysis is purely theoretical and its theoretically informed hypotheses are not tested empirically. As such, further data-driven research is indicated. Additional analyses are also needed to further unpack the recursive nature of the relationship between karoshi and CP and the subtle differences between genetic evolution and cultural and organizational evolution.

Practical implications

Karoshi-related deaths are a public health epidemic and increasingly a major obstacle to sustainable CP. As such, organizations can leverage these analyses to help them implement interventions aimed at reducing incidents of work-related deaths, not only in Japan, but across the world.

Originality/value

This multilevel conceptual framework makes a unique contribution to the cross-cultural and strategic management literatures. More specifically, it constitutes a new and innovative contribution to one’s current understanding of CP by uniquely integrating biology, psychology, organization studies and cultural studies into one overarching model.

Crossing the rice-wheat border: Not all intra-cultural adaptation is equal

This study aimed to test whether or not where people come from and move to impacts their method for dealing with stress. We investigated this research question among newcomers crossing between the rice and wheat farming regions in China-south and north China, respectively. New evidence suggests wheat-farming agriculture fosters a coping strategy of changing the environment (primary coping), while rice-farming regions foster the converse strategy of fitting into the environment (secondary coping). Using two longitudinal studies on newcomers at universities located in both the rice and wheat farming regions, we hypothesized that students from south China (rice region) at a university in north China (wheat region) would use more primary coping and it would lead to better adaptation (Study 1). In contrast, students from wheat-farming regions moving to a rice university would benefit from secondary coping as an effective strategy for buffering stress (Study 2). Results indicated that for students from rice-farming regions who were studying universities in wheat-farming regions, secondary coping was damaging and attenuated the stress-adaptation relationship. However, in study 2, the reverse was found, as secondary coping was found to buffer the negative effects of stress on sociocultural adaptation for students from wheat-farming regions who were studying at universities in rice-farming regions. This study lends further support to the theory that ecological factors impact how individuals cope with the acculturative stress of moving to a new environment.

Mediating effect of neuroticism and negative coping style in relation to childhood psychological maltreatment and smartphone addiction among college students in China

BACKGROUND

Smartphones are convenient for college students. However, overuse of smartphone or smartphone addiction, can lead to problems related to healthy development. The cause of smartphone addiction can be traced to adverse childhood experiences such as childhood psychological maltreatment. Therefore, exploring the cause and mechanism underlying smartphone addiction in college students with a history of childhood psychological maltreatment is crucial.

OBJECTIVE

The purpose of this study was to explore the mediating effect of neuroticism and coping style in relationship between childhood psychological maltreatment and smartphone addiction among college students.

METHODS

The participants included 1169 (43.8 % female and 56.2 % male) college students ranging in age from 17 to 23 years (M = 19.89, SD = 1.25). All participants completed a self-report questionnaire measuring childhood psychological maltreatment, neuroticism, coping style, and smartphone addiction symptoms. A multiple mediation model was used to test the hypotheses.

RESULTS

Findings from mediation analysis showed that both in parallelly and sequentially, neuroticism and negative coping style mediated the relationship between childhood psychological maltreatment and smartphone addiction.

CONCLUSIONS

The present study can provide an understanding of how childhood psychological maltreatment influences college students' smartphone addiction. This study also provides implications on how to reduce the effects of childhood psychological maltreatment on smartphone addiction in college students.

Historically rice-farming societies have tighter social norms in China and worldwide

Rice is a highly interdependent crop. Rice required far more labor than dryland crops like wheat, and rice’s irrigation networks forced farmers to coordinate water use. To deal with these demands, rice villages developed strong norms for labor exchange. Using China as a natural test case, we compare nearby provinces that differ in rice and wheat, but share the same ethnicity, religion, and national government. In survey data from over 11,000 Chinese citizens, rice-farming provinces report tighter norms than traditionally wheat-growing provinces. Rice also predicts tight norms around the world. These data suggest that China’s agricultural past still shapes cultural differences in the modern day—and perhaps explain why East Asia has tighter social norms than the wheat-growing West.

Data recently published in PNAS mapped out regional differences in the tightness of social norms across China [R. Y. J. Chua, K. G. Huang, M. Jin, Proc. Natl. Acad. Sci. U.S.A. 116, 6720–6725 (2019)]. Norms were tighter in developed, urbanized areas and weaker in rural areas. We tested whether historical paddy rice farming has left a legacy on social norms in modern China. Premodern rice farming could plausibly create strong social norms because paddy rice relied on irrigation networks. Rice farmers coordinated their water use and kept track of each person’s labor contributions. Rice villages also established strong norms of reciprocity to cope with labor demands that were twice as high as dryland crops like wheat. In line with this theory, China’s historically rice-farming areas had tighter social norms than wheat-farming areas, even beyond differences in development and urbanization. Rice–wheat differences were just as large among people in 10 neighboring provinces (n = 3,835) along the rice–wheat border. These neighboring provinces differ sharply in rice and wheat, but little in latitude, temperature, and other potential confounding variables. Outside of China, rice farming predicted norm tightness in 32 countries around the world. Finally, people in rice-farming areas scored lower on innovative thinking, which tends to be lower in societies with tight norms. This natural test case within China might explain why East Asia—historically reliant on rice farming—has tighter social norms than the wheat-farming West.

Culture and Attention: Future Directions to Expand Research Beyond the Geographical Regions of WEIRD Cultures

Henrich et al. (2010) highlighted the necessity of broadening the range of regions for cross-cultural investigation in their seminal paper "The weirdest people in the world." They criticize the current psychological framework for relying dominantly on American undergraduate students for their participant database, and state that there is a risk associated with investigating human nature by focusing solely on a unique population. This line of research has, over the past 30 years, successfully demonstrated the diversity of human cognition. However, it is true that there are still only a limited number of studies that have extended their geographical regions of research outside of G7 (Canada, France, Germany, Italy, Japan, United Kingdom, and United States) and G20 countries (Argentina, Australia, Brazil, China, India, Indonesia, Mexico, Russia, Saudi Arabia, South Africa, South Korea, Turkey, EU countries, and the above G7 countries). In order to fully examine the issue of culture and cognition, we maintain that the field of psychology must extend its research globally. In this paper, we will briefly discuss the history of cross-cultural research in the 1960s which can be seen as the beginning of addressing the above concerns, and review some contemporary empirical studies which took over their 1960s predecessors' mission. Here we address three strengths of extending the geographical scope to advance cultural psychology. In the second half of the paper, we will introduce our preliminary study conducted in Mongolia as a sample case study to demonstrate a way of administering cultural psychological research outside of the existing research field. We will then discuss implications of this line of research, and provide tips on how to open a new research site.

The Moderating Role of Autonomy Support Profiles in the Association Between Grit and Externalizing Problem Behavior Among Family-Bereaved Adolescents

Research has consistently documented that the death of a close family member can disrupt a family’s functional equilibrium and has a deleterious effect on adolescents’ adaptation; however, little attention has been paid to behavioral adaptation of adolescents after a loss in a collective setting. Attempting to fill this research gap, the objectives of the current study are: (1) to identify autonomy support profiles based on two centered figures (parents and head teachers) and (2) to examine whether these emerging profiles may moderate the association between the two dimensions of grit (perseverance and consistency) and externalizing problem behavior in Chinese family-bereaved adolescents. A total of 763 family-bereaved adolescents aged from 13 to 18 years (60.3% girls; M_age = 15.74; SD = 1.53) were involved in the current study; they were asked to fill a battery of self-report questionnaires. A latent profile analysis revealed three autonomy support profiles: high parental autonomy support–high teacher autonomy support (HPHT; n = 598), high parental autonomy support–low teacher autonomy support (HPLT; n = 34), and low parental autonomy support–low teacher autonomy support (LPLT; n = 131). Moreover, results from linear regression analyses, after controlling for relevant bereavement variables, sociodemographics, and social desirability, showed that perseverance and consistency were negatively related to externalizing problem behavior for adolescents within the HPHL profile; nevertheless, the association between perseverance and externalizing problem behavior turned to be positive for adolescents within the HPLT profile. The current study sheds light on the variability of the association between grit and family-bereaved adolescents’ behavioral adaptation and further enriches the beneficial effect of autonomy support on adaptive functions in a collective cultural setting. The interplay between grit and autonomy support from parents and teachers has a significant influence on buffering externalizing problem behavior among family-bereaved adolescents.

Does relational mobility vary across national regions? A within-country examination

Relational mobility is a socio-ecological construct quantifying how much freedom and opportunity a society affords individuals to choose and dispose of interpersonal relationships. Past research has confirmed that relational mobility varies across nations, but no large-scale study has examined the degree to which relational mobility may vary within a single nation. We report two studies (Study 1, N = 647; Study 2, N = 7343) exploring within-country similarity or variability in relational mobility across all 27 states and five geo-socio-political regions in the continent-size country of Brazil. Results confirmed the measurement equivalence of the Relational Mobility Scale across respondents from all Brazilian states. Notably, relational mobility scores were uniform across Brazilian regions and states, indicating a common national culture regarding the amount of opportunities Brazilians have in selecting new relationship partners within their social context. Replicating existing findings, relational mobility was positively associated with pro-active tendencies that help people retain relationships-levels of intimacy and self-disclosure toward a close friend-indicating that friends tend to feel closer intimacy to their close friends, and reveal serious personal information to a larger degree in social contexts where opportunities to find and retain relationships with like-minded others are greater.

Preservation of the value of rice paddy fields: Investigating how to prevent farmers from abandoning the fields by means of evolutionary game theory

The evolution of group cooperation is still an evolutionary puzzle and has been studied from the perspective of not only evolutionary ecology but also social sciences. Some socio-ecological problems are caused by collapse of group cooperation. By applying theoretical studies about the evolution of cooperation, we can elucidate what causes the problems and find solutions. One of the appropriate examples is maintaining rice paddy field landscapes, which are a grand spectacle in Asia, and some are UNESCO world heritage sites. These magnificent landscapes and the associated biodiversity are at risk of abandonment for social and financial reasons. Rice paddy fields can be preserved not only by regular cultivation, which requires farmers to invest effort in cultivation, but also by the maintenance of common facilities such as irrigation canals. To investigate how this landscape might be preserved, we developed an agent-based model in which each farmer makes two types of efforts: an effort for land cultivation and an effort for collective action such as common facility maintenance. Additionally, we consider the side effects of rice production such as field deterioration from abandonment and water use competition. These factors determine the utility of each player who imitates the level of efforts necessary to invest in land cultivation and common facility maintenance of one with higher utility. This decision-making of each player can be described by the evolutionary game theory. We find that maintenance effort promotes cultivation effort, but not vice versa, even though we usually consider that each farmer's cultivation effort makes rice field landscape sustainable. We also find that if players and their near neighbors are responsible for maintaining their common facilities together, they continue to maintain them and cultivate, but if all players are responsible for maintaining all facilities in the whole farmland, players are likely to quit facility maintenance and stop cultivation. Competition for water use among all players, however, promotes cultivation more than competition among neighbors only. Therefore, rice paddy field landscapes can be sustainable if neighbors, but not the whole players, are responsible for maintaining their common facilities and cooperate together, and if the water usage of all players, but not neighbors, influences the productivity of each rice field.

The Household Structure Transition in China: 1982-2015

Chinese society has experienced a dramatic change over the past several decades, which has had a profound impact on its household system. Utilizing the Chinese national census and 1% population survey data from 1982 to 2015, this study demonstrates the transition of the Chinese household structure through typology analyses. Five typical regional household structure types-large lineal, large nuclear, small nuclear, mixed lineal, and small and diverse-are identified. Our findings demonstrate that since the 1980s, the household system in almost all Chinese regions has evolved from a large unitary model to a small diversified one. However, this evolutionary path diverged after 2000 and formed two distinct household structure systems. There are also significant regional differences in the transition trajectory. Influenced by developmental, cultural, and demographic factors, the regions exhibit four distinct transition paths: lineal tradition, nuclear retardation, smooth transition, and fast transition. On the basis of these results, we discuss family modernization and other theories in explaining the transition of the Chinese household structure.

How Does Collectivism Affect Social Interactions? A Test of Two Competing Accounts

How does the cultural construct of collectivism impact social interactions? Two accounts of collectivism offer diverging predictions. The collectivism-as-values account proposes that people in collectivistic cultures prioritize their ingroup relationships; accordingly, this account predicts that collectivistic cultures will have more harmonious ingroup interactions than individualistic cultures. The socioecological account holds that individualistic cultures have high relational mobility, which requires people to invest in their ingroup relationships, whereas collectivistic cultures feature more fixed relationships that do not require positive engagement. To test these competing hypotheses about ingroup relationships across cultures, we sampled the daily interactions of college students in China and the United States. Results revealed that the individualistic culture (United States) had more positive ingroup interactions, more gratitude, and more emotional support than the collectivistic culture (China). The current findings are consistent with the socioecological account of collectivism and the effects of relational mobility on social relationships.

Beyond Western, Educated, Industrial, Rich, and Democratic (WEIRD) Psychology: Measuring and Mapping Scales of Cultural and Psychological Distance

In this article, we present a tool and a method for measuring the psychological and cultural distance between societies and creating a distance scale with any population as the point of comparison. Because psychological data are dominated by samples drawn from Western, educated, industrialized, rich, and democratic (WEIRD) nations, and overwhelmingly, the United States, we focused on distance from the United States. We also present distance from China, the country with the largest population and second largest economy, which is a common cultural comparison. We applied the fixation index (F_ST), a meaningful statistic in evolutionary theory, to the World Values Survey of cultural beliefs and behaviors. As the extreme WEIRDness of the literature begins to dissolve, our tool will become more useful for designing, planning, and justifying a wide range of comparative psychological projects. Our code and accompanying online application allow for comparisons between any two countries. Analyses of regional diversity reveal the relative homogeneity of the United States. Cultural distance predicts various psychological outcomes.

Historical Sustenance Style and Social Orientations in China: Chinese Mongolians Are More Independent Than Han Chinese

In this study, we examined the Chinese Han and Mongolian, two ethnic groups that belong to the same national and geographic regions but vary in their degrees of social interdependence and independence. We assumed that the Mongolian, who have traditionally been known as a herding community, exhibit a greater independent social orientation compared to the Han Chinese, who have traditionally been known as an agrarian community. Through three different studies we used the explicit measurement of self-construal, implicit cultural task of self - inflation and the practice of name-giving (i.e., baby names as a cultural product) to test our hypothesis. The obtained results revealed that compared to Han Chinese, Mongolian scored higher on independent - self subscale, had greater levels of self-symbolic inflation and were less likely to give common names to their babies. These findings suggest that Mongolians are more independent than Han Chinese. In view of that, the present study contributes to a better understanding of the complexity of Chinese culture in terms of interdependence and independence, and provides further support for historical sustenance theory.

Analysis of differences in eating alone attitude of Koreans by dietary habits and age

This study compares differences in eating alone attitude according to dietary habits and age in Seoul and Gyeonggi-do region in South Korea. Out of total 411 participants, 207(50.4%) were males and 204(49.6%) were females. 30 types of eating alone attitude were identified to perform a factor analysis; further these 30 types of attitudes were categorized into 8 factors termed as: 'enjoyable eating alone', 'eating alone as a daily routine', 'healthy eating alone', 'self-conscious eating alone', 'choose what I want', 'efficient eating alone', 'lonely eating alone', and 'solo dining'. Our investigation on the link between dietary habits and eating alone attitude revealed significant differences in 3 factors out of those 8 factors: healthy eating alone, solo dining, eating alone as a daily routine. The high healthy meal group was found to have less frequency of eating alone. Among people in their 20s and 30s, the low healthy meal group had more population than the high healthy meal group. There was a tendency that the population of the high healthy meal group increases as age rises. Our data indicated that the younger generation eats alone more frequently as a daily routine (p < 0.01), feels freer when eating alone, eats out alone more frequently (p < 0.01). People in their 20s were found to be more positive on eating alone and tended to be willing solo diners. The high healthy meal group did eat alone in a healthy way whereas the low healthy meal group had a negative view on eating alone. Our study aims at providing a good starting point to develop programs for healthy eating alone by finding gaps between healthy and unhealthy eating alone.

The dual evolutionary foundations of political ideology

Research over the last fifty years has suggested that political attitudes and values around the globe are shaped by two ideological dimensions, often referred to as economic and social conservatism. However, it remains unclear why this ideological structure exists. Here we highlight the striking concordance between these dual dimensions of ideology and independent convergent evidence for two key shifts in the evolution of human group living. First, humans began to cooperate more and across wider interdependent networks. Second, humans became more group-minded, conforming to social norms in culturally marked groups and punishing norm-violators. We propose that fitness trade-offs and behavioural plasticity have maintained functional variation in willingness to cooperate and conform within modern human groups, naturally giving rise to the two dimensions of political ideology. Supported by evidence from across the behavioural sciences, this evolutionary framework provides insight into the biological and cultural basis of political ideology.

Historical Change in the Moral Foundations of Political Persuasion

How have attempts at political persuasion changed over time? Using nine corpora dating back through 1789, containing over 7 million words of speech (1,666 documents in total), covering three different countries, plus the entire Google nGram corpus, we find that language relating to togetherness permanently crowded out language relating to duties and obligations in the persuasive speeches of politicians during the early 20th century. This shift is temporally predicted by a rise in Western nationalism and the mass movement of people from more rural to more urban areas and is unexplained by changes in language, private political speech, or nonmoral persuasion. We theorize that the emergence of the modern state in the 1920s had psychopolitical consequences for the ways that people understood and communicated their relationships with their government, which was then reflected in the levers of persuasion chosen by political elites.

Southerners Are Wiser Than Northerners Regarding Interpersonal Conflicts in China

Initial evidence suggests that cultural differences have consequences for wise reasoning (perspective taking, consideration of change and alternatives, intellectual humility, search for compromise, and adopting an outsider’s vantage point), with more reports of wise reasoning about interpersonal conflicts among Japanese (as compared to American) young and middle-aged adults. Similarly, we found that people from the rice-farming area of southern China also exhibited greater wise reasoning when they encountered conflicts with a friend or in the workplace than those from the wheat-farming area of northern China (N = 487, 25 provinces). The relationship between rice farming and wise reasoning was mediated by loyalty/nepotism. This research advances study of the relationship between wisdom and culture. It also provides evidence for the influence of social-ecological factors on wisdom and culture.

Perceived Parental Support and Adolescents' Positive Self-Beliefs and Levels of Distress Across Four Countries

Previous research has shown that parental support has beneficial effects on the psychological well-being of adolescents. Going beyond prior research, the present study made distinctions between information, emotional, and financial parental support and examined adolescents from United States (N = 1,002), China (N = 1,172), South Korea (N = 3,993), and Japan (N = 1,112). The frequency and impact of different types of perceived parental support on adolescents’ positive self-belief and distress levels have been investigated. Consistent with the existing literature, the results showed American adolescents perceived greater emotional and informational support than others, while Chinese, Korean, and Japanese adolescents perceived greater tangible support compared to American adolescents. Notably, Chinese adolescents reported higher levels of parental support than other East Asian adolescents. The perceived parental support influenced positive self-beliefs equally across cultural groups, but informational support impacted distress to a greater degree for American adolescents than East Asian adolescents. The implications of the present research are discussed.

Cultural group selection and human cooperation: a conceptual and empirical review

Cultural group selection has been proposed as an explanation for humans' highly cooperative nature. This theory argues that social learning mechanisms, combined with rewards and punishment, can stabilise any group behaviour, cooperative or not. Equilibrium selection can then operate, resulting in cooperative groups outcompeting less-cooperative groups. This process may explain the widespread cooperation between non-kin observed in humans, which is sometimes claimed to be altruistic. This review explores the assumptions of cultural group selection to assess whether it provides a convincing explanation for human cooperation. Although competition between cultural groups certainly occurs, it is unclear whether this process depends on specific social learning mechanisms (e.g. conformism) or a norm psychology (to indiscriminately punish norm-violators) to stabilise groups at different equilibria as proposed by existing cultural group selection models. Rather than unquestioningly adopt group norms and institutions, individuals and groups appear to evaluate, design and shape them for self-interested reasons (where possible). As individual fitness is frequently tied to group fitness, this often coincides with constructing group-beneficial norms and institutions, especially when groups are in conflict. While culture is a vital component underlying our species' success, the extent to which current conceptions of cultural group selection reflect human cooperative evolution remains unclear.

Hospital and healthcare insurance system record-based epidemiological study of myasthenia gravis in southern and northern China

OBJECTIVE

This is the first cross-region epidemiological study of myasthenia gravis (MG) in China. We estimated the incidence, prevalence, and medical costs of MG in southern China and explored the differences between the southern and northern Chinese populations.

METHODS

We collected and analyzed records from 20 hospitals in the southern city, Guangzhou, 13 hospitals in the northern city, Harbin, and two healthcare insurance systems: job based and residence based in Guangzhou during 2000-2017.

RESULTS

(1) The estimated annual incidence of MG was 1.55-3.66 per 100,000, and the estimated prevalence of MG was 2.19-11.07 per 100,000 in southern China based on insurance records. (2) The proportion of hospitalized MG patients in the south-based hospital records was three times as high as that in the north-based hospital records. (3) Female MG prevalence was significantly higher than male MG prevalence in Guangzhou, while the similar gender difference in Harbin was not statistically significant due to higher variation in earlier years. (4) The average expense was $35-42 for each outpatient service and $2526-2673 for each hospitalization expense in the south. (5) Contrary to the increase of insurance-based estimate of MG prevalence, the proportion of hospitalized MG patients did not increase over the years, suggesting rising awareness and utilization of health insurance.

CONCLUSIONS

The southern MG population had a significantly higher prevalence and a lower response threshold to medication than the northern MG population. These results are calling for further investigations on the genetic, cultural, and environmental variations of the Chinese MG populations between north and south.

Emerging infectious disease, the household built environment characteristics, and urban planning: Evidence on avian influenza in Vietnam

Recent concerns with pandemic outbreaks of human disease and their origins in animal populations have ignited concerns regarding connections between Emerging Infectious Diseases (EID) and development. As disasters, health, and infectious disease become part of planning concern (Matthew & McDonald, 2007), greater focus on household infrastructure and EID disease outbreaks among poultry is warranted. Following Spencer (2013), this study examines the relationship between the mix of household-scale water supplies, sanitation systems, and construction materials, and Highly Pathogenic Avian Influenza (HPAI) among poultry in a developing country: Vietnam. Findings of our multivariate logistic regressions suggest that a non-linear, Kuznets-shaped urban transition (Spencer, 2013) has an independent effect on the outbreak of HPAI, especially as it relates to household-level sanitation infrastructure. We conclude that the Kuznets-shape development of household infrastructure characteristics in Vietnam play a significant role in explaining where poultry outbreaks occur. Using secondary data from the Census of Population and Housing, and the Agricultural Census at the District and Commune levels for the country of Vietnam, we performed logistic regression to test the relationship between outbreaks of HPAI in poultry and newly-developed "coherence indices" (Spencer, 2013) of household water supply, sanitation, and construction materials that measure nonlinear, transitional development. Results show that district-scale coherence indices are negatively and independently correlated with HPAI outbreaks, especially for sanitation. Findings also suggest that community-scale coherence of urban infrastructures is a powerful tool for predicting where HPAI poultry outbreaks are likely to occur, thereby providing health planners new tools for efficient surveillance.

Factors Influencing Consumption of Edible Insects for Chinese Consumers

Edible insects are often considered a healthier and more sustainable meat substitute and protein source. Many studies have examined factors affecting the consumption behavior towards edible insects among Western consumers. However, little is known about factors influencing consumer behavior towards edible insects in Asian countries even though Asians have a long history of consuming insects. In this study, we surveyed 614 Chinese consumers from Beijing and Nanjing to examine the factors influencing their consumption and purchase behavior of edible insects. We find that insect phobia, feelings of disgust, knowledge level, and social demographic factors such as age, household size, household income and region (Northern or Southern China) are the main factors influencing purchase decisions. In addition, the results indicate that the perceived positive attributes associated with edible insects, the preferences of children in the household, as well as age and knowledge level have positive impacts on consumption frequency. On the other hand, concerns of food safety and the shape of the insects have negative impacts on consumption frequency. Finally, the results suggest that educating consumers to increase knowledge of edible insects increases their probability to purchase insect foods.