Food pleasantness affects visual selective attention

Fundamental to adaptive behaviour is the ability to select environmental objects that best satisfy current needs and preferences. Here we investigated whether temporary changes in food preference influence visual selective attention. To this end, we exploited the fact that when a food is eaten to satiety its motivational value and perceived pleasantness decrease relative to other foods not eaten in the meal, an effect termed sensory-specific satiety. A total of 26 hungry participants were fed until sated with one of two palatable foods. Before and after selective satiation, participants rated the pleasantness of the two foods and then viewed the same as stimuli on a computer screen while attention was assessed by a visual probe task. Results showed that the attentional bias for the food eaten decreased markedly from pre- to postsatiety, along with the subjective pleasantness for that food. By contrast, subjective pleasantness and attentional bias for the food not eaten did not show any such decrease. These findings suggest that the allocation of visual selective attention is flexibly and rapidly adjusted to reflect temporary shift in relative preference for different foods.     

制度伦理思想的传统溯源

制度伦理的兴起,在今天的中国是与社会主义市场经济的建立与发展紧密相联的。市场经济从根本上改变了传统社会的生产方式,从而动摇了传统德性伦理的生存土壤,致使德性伦理的边缘化。但由此就认为制度伦理是现代社会的产物,是市场经济的唯一形式显然又是有失偏颇的。追溯制度伦理文化的传统根源,对于我们弘扬民族文化和培育民族精神有一定的现实价值和借鉴意义。     

Scarce Foods are Perceived as Having More Calories

People vary dramatically in their calorie estimates of food depending on the information available to them. Prior research has focused on information that is normatively relevant to the number of calories a food contains (e.g., fat content, serving size). The current research examines whether information that is normatively irrelevant to the number of calories a food contains—such as its availability—might also shape people's calorie estimates. Three studies found that a food perceived as limited in availability leads people to estimate the food to contain more calories. Serial mediation analyses revealed that this effect occurs because scarce food is seen as more valuable and expensive, which subsequently induces feelings of resource deprivation. This sense of resource deprivation, in turn, leads to motivated perception, whereby higher calorie estimates are the result of people wanting to acquire more resources. The findings provide insight into the psychology of scarcity and underscore the importance of understanding how contextual factors shape people's calorie estimates and the psychological mechanisms that drive them.     

Getting emotional about ‘brain mobility’

Our purpose in this paper is to offer an historical and cultural account of the relationships between globalisation, the nation-state, emotion and the academic mobility policies that are driven by the knowledge economy. In so doing we seek to contribute to the emerging literature on the links between emotion, policy and globalisation. These links are under-researched and under-theorised. Seeking to build on Arjun Appadurai’s work on the global cultural economy, we coin the term ‘emoscapes’. Emoscapes, we argue, involve the movement and mobilisation of emotion on intersecting global, national and personal scales. This concept helps us to illuminate how emotion circulates within global power and knowledge geographies. We discuss global policy atmospherics in terms of the structural power relationship between different nation-states and regions, the feelings such relationships generate on matters of ‘brain mobility’ and the implications for policy. This provides a broad context for our discussion of the nation-state itself where we consider how the nation-state’s position within these global power formations contributes to national feelings. Taking the example of Australia, we look at its emotional archive, the implications for the ways in which Australian policies have territorialised the global ‘brain mobility’ policy discourse and the nation-state policy atmospherics involved. Ultimately we show how emoscapes have entered and influenced policy and how they are part of global and national power and knowledge geographies.     

Challenging the Stubborn Core of Opposition to Equality: Racial Contact and Policy Attitudes

A Random Digit Dialing survey (n = 794) examined the interracial contact experiences and racial attitudes of White South Africans. The survey measured racial attitudes not only in terms of individuals' prejudice, but also in terms of their perceptions of group threat, perceived injustice, and support for various government policies designed to rectify the legacy of apartheid. The results indicated that the frequency and quality of interracial contact predicted Whites' support for both race compensatory and race preferential policies of redress, and these effects were partly mediated by perceived threat, sense of fairness, and racial prejudice. The research points to a potential rapprochement between the social psychological theories of intergroup contact and group positioning theories derived from the work of Blumer. It also highlights the value of adopting a more expansive and politically nuanced conception of the “consequences” of contact and desegregation.     

Chimpanzees do not take into account what others can hear in a competitive situation

Chimpanzees (Pan troglodytes) know what others can and cannot see in a competitive situation. Does this reflect a general understanding the perceptions of others? In a study by Hare et al. (2000) pairs of chimpanzees competed over two pieces of food. Subordinate individuals preferred to approach food that was behind a barrier that the dominant could not see, suggesting that chimpanzees can take the visual perspective of others. We extended this paradigm to the auditory modality to investigate whether chimpanzees are sensitive to whether a competitor can hear food rewards being hidden. Results suggested that the chimpanzees did not take what the competitor had heard into account, despite being able to locate the hiding place themselves by the noise.     

Conflict of Interest Policies at Canadian Universities: Clarity and Content

Discussions of conflict of interest (COI) in the university have tended to focus on financial interests in the context of medical research; much less attention has been given to COI in general or to the policies that seek to manage COI. Are university COI policies accessible and understandable? To whom are these policies addressed (faculty, staff, students)? Is COI clearly defined in these policies and are procedures laid out for avoiding or remedying such situations? To begin tackling these important ethical and governance questions, our study examines the COI policies at the Group of Thirteen (G13) leading Canadian research universities. Using automated readability analysis tools and an ethical content analysis, we begin the task of comparing the strengths and weaknesses of these documents, paying particular attention to their clarity, readability, and utility in explaining and managing COI.     

When Effort is Threatening: The Influence of the Belief in a Just World on Americans' Attitudes Toward Antipoverty Policy

In the political context of the reauthorization of federal welfare reform legislation, a nationally representative sample of 1,570 adults in the United States completed a survey examining the factors that affect attitudes and policy preferences with regard to aid for low-income individuals and families in the United States. This study utilized an innovative survey technique, the factorial survey methodology (Rossi & Nock, 1982), which allows for the simultaneous experimental manipulation of a large number of factors through the use of a vignette. This research demonstrates how the portrayal of difficulties faced by people in need and the ways in which they attempt to overcome these difficulties affect support for policies designed to aid low-income individuals and families. In addition, this study of public attitudes considers the role that psychological orientations of the evaluators play in judgments of families in need. In this case, we examined how the evaluators' belief that the world is a just place influences their evaluations of deservingness. Consistent with our expectations, we found that the more efforts the vignette subject engaged in improving her situation, the less deserving of government benefits she was judged to be by respondents with a strong belief in a just world. The reverse was found among respondents with a weaker belief: more efforts were associated with greater judgments of deservingness.