Aging is associated with increased Weber ratios

To investigate whether age-associated changes in the human taste system are quality-specific, we compared young and elderly subjects’ suprathreshold discrimination abilities for caffeine and sucrose. The method of constant stimuli was used to obtain just noticeable differences and Weber ratios. The elderly generated larger Weber ratios than did the young for both the medium and high concentrations of caffeine, but not for the low concentration. For example, a 74% increase in .005 M caffeine was required to obtain a perceptible difference for the elderly, whereas a 34% increase produced a perceptible difference for the young. The Weber ratios for sucrose did not differ for the two age groups. The results of this study indicate that age-associated changes in the taste system are quality-specific.

     

Equivocations on knowledge systems theory: An actor-oriented critique

Knowledge systems theory, in our view, tends to obscure rather than illuminate an understanding of the fundamentals of knowledge processes in society. This tendency occurs primarily because both the theory, and the methodologies that are derived from it, fail to recognize that knowledge processes are social processes, and thereby that knowledge itself has to be envisaged as a social construction. As a result of this omission, knowledge systems theory and methodology can only deal poorly with issues of power and social conflict, and, at the same time, tend to make use of several inappropriate teleological and reifying notions. According to our view, the understanding of knowledge processes will benefit greatly from a more actor-oriented perspective. In such an approach, emphasis is accorded to human agency and the concept of multiple knowledge networks. Central purposes of actor-oriented methodologies then, are to clarify how actors attempt to create space for their own ‘projects’ and to determine which elements contribute to or impede the successful creation of such space for maneuver. Norman Long is a member of the Department of Rural Sociology of the Tropics and Subtropics at Wageningen Agricultural University, P.O. Box 8130, 6700 EW, Wageningen, The Netherlands. He is known for his work in the sociology of rural development. Magdalena Villarreal recently acquired her M.S. in “Management of Agricultural Knowledge Systems” at Wageningen Agricultural University. She is presently working on a Ph.D. proposal on issues of power, gender, and intervention.     

Attachment in Context: The Role of Demographic Factors Among Indonesians from Three Ethnic Groups

This study examined attachment in Indonesia, one of the fourth most populous countries in the world. We applied the Indonesian version of the Attachment Style Questionnaire (ASQ) on 1313 Indonesians from three ethnically diverse samples (404 Bataks, 430 Minangkabau, and 479 Javanese). We assessed demographic factors which consist of the roles of the living-with-family experience (M = 19.58 years), age (M = 24.34 years old), sex (man = 43.4 %), and ethnicity in attachment dimensions development. Pearson’s correlation analyses revealed negative correlations between the living-with-family experience as well as age and the two attachment dimensions, Need for approval and confirmation by others and Preoccupation with relationships. Group comparison analyses found significant differences for the five scales of ASQ among sex and ethnic groups. We also found a significant main effect of age and ethnicity on some of the ASQ scales.     

Zero‐sum thinking as mediator of the relationship of national attitudes with (un)willingness to host refugees in own country

This study examines factors related to willingness to host refugees. We examined the role of national attitudes (patriotism, nationalism), out‐group attitudes (classic and modern prejudice), and zero‐sum thinking: Belief in a Zero‐Sum Game and psychological entitlement in attitudes towards hosting refugees. We proposed including zero‐sum thinking as possible mediator between national attitudes and attitudes towards refugees based on assumption that nationalism is a competitive attitude towards out‐groups, while patriotism does not. Structural equation modelling based on a Polish national sample (N = 1092) revealed that patriotism is positively associated with willingness to host refugees, through its negative association with prejudice via decreasing zero‐sum thinking. Nationalism was negatively associated with willingness to host refugees, through prejudice via increasing zero‐sum thinking. Findings are discussed in the context of current refugee policies.     

Bridging the Divide or Intensifying the Conflict? How Disagreement Affects Strong Predilections about Sexual Minorities

This study draws on a sample of participants in online groups that discussed legalization of same‐sex marriage, to examine whether exposure to perceived disagreement decreases—as the deliberative theorists hope—or rather increases—as the research on confirmation bias predicts—strongly held predilections. Overall, participants' views towards same‐sex marriage and sexual minority rights remained largely unchanged after deliberating, regardless of the ideological composition of their groups. Consistent with the confirmation bias model, those who strongly opposed same‐sex marriage and sexual minority rights prior to the discussions and who perceived that others disagreed with them became even more opposed, and this effect was not a short‐term shift. Strong proponents, on the other hand, did not polarize in their views, but instead became slightly less favorable towards same‐sex marriage and sexual minority rights as a result of disagreement. Implications of these findings for deliberation of contentious issues are discussed.     

Human values and ideological beliefs as predictors of attitudes toward immigrants across 20 countries: The country-level moderating role of threat

Immigration is a worldwide subject of interest, and studies about attitudes toward immigrants have been frequent due to immigration crises in different locations across the globe. We aimed at understanding individual-level effects of human values and ideological beliefs (Right-Wing Authoritarianism—RWA, and Social Dominance Orientation—SDO) on attitudes toward immigrants, and whether country-level variables (perception of Islamic fundamentalism as a threat, perception of immigrants as a threat, and international migrant stock) moderate these relations. With representative samples from 20 countries (N = 21,362; the Americas, Europe, Asia, and Oceania), and using Multilevel Bayesian regressions, results showed the negative effect of RWA, SDO, and existence values on attitudes toward immigrants, and the positive effects of suprapersonal and interactive values. Cross-level interactions indicated that the effects of RWA, SDO, and suprapersonal and existence values were intensified in countries with societally high levels of perceiving Islamic fundamentalism as a threat. International migrant stock served as a country-level moderator for the effects of SDO and RWA only. When country-level moderators were included simultaneously, Islamic fundamentalism as a threat was the most consistent moderator. Framing theory is offered as a plausible explanation of these results.     

Cross-Cultural Measurement of Positive and Negative Emotions in Adolescence: Evidence from Three Countries

Journal of Happiness Studies - Cross-cultural assessment of affective well-being among adolescents has received scarce attention in positive psychological research. The present study investigated...