Many-body potential for nitrogen in α-iron

N atom is one of the most frequent foreign interstitial atoms in α-iron along with C atoms. The Fe–C potential has been well-developed and can reproduce many significant interactions of C with point defects present in α-iron. However, there exists no satisfactory Fe–N potential to describe the interactions of N with point defects. Here, we develop a many-body potential for N in α-iron. The potential parameters are determined by fitting to ab initio data, which includes energetics, configurations, and relaxations of Fe atoms close to N atom. This potential successfully describes the interactions of Fe–N across a wide range of defect environments. The potential employs the embedded atom method form and hence is appropriate for large-scale molecular dynamics simulation.     

Destination memory in social interaction: better memory for older than for younger destinations in normal aging?

Destination memory, a memory component allowing the attribution of information to its appropriate receiver (e.g., to whom did I lend my pen?), is compromised in normal aging. The present paper investigated whether older adults might show better memory for older destinations than for younger destinations. This hypothesis is based on empirical research showing better memory for older faces than for younger faces in older adults. Forty-one older adults and 44 younger adults were asked to tell proverbs to older and younger destinations (i.e., coloured faces). On a later recognition test, participants had to decide whether they had previously told some proverb to an older/younger destination or not. Prior to this task, participants reported their frequency of contact with other-age groups. The results showed lower destination memory in older adults than in younger adults. Interestingly, older adults displayed better memory for older than for younger destinations. The opposite pattern was seen in younger adults. The low memory for younger destinations, as observed in older adults, was significantly correlated with limited exposure to younger individuals. These findings suggest that for older adults, the social experience can play a crucial role in the destination memory, at least as far as exposure to other-age groups is concerned.     

A Role for the X Chromosome in Sex Differences in Variability in General Intelligence?

ABSTRACT— There is substantial evidence that males are more variable than females in general intelligence. In recent years, researchers have presented this as a reason that, although there is little, if any, mean sex difference in general intelligence, males tend to be overrepresented at both ends of its overall distribution. Part of the explanation could be the presence of genes on the X chromosome related both to syndromal disorders involving mental retardation and to population variation in general intelligence occurring normally. Genes on the X chromosome appear overrepresented among genes with known involvement in mental retardation, which is consistent with a model we developed of the population distribution of general intelligence as a mixture of two normal distributions. Using this model, we explored the expected ratios of males to females at various points in the distribution and estimated the proportion of variance in general intelligence potentially due to genes on the X chromosome. These estimates provide clues to the extent to which biologically based sex differences could be manifested in the environment as sex differences in displayed intellectual abilities. We discuss these observations in the context of sex differences in specific cognitive abilities and evolutionary theories of sexual selection.     

Sex differences in regret: all for love or some for lust?

Few sex differences in regret or counterfactual thinking are evident in past research. The authors discovered a sex difference in regret that is both domain-specific (i.e., unique to romantic relationships) and interpretable within a convergence of theories of evolution and regulatory focus. Three studies showed that within romantic relationships, men emphasize regrets of inaction over action (which correspond to promotion vs. prevention goals, respectively), whereas women report regrets of inaction and action with equivalent frequency. Sex differences were not evident in other interpersonal regrets (friendship, parental, sibling interactions) and were not moderated by relationship status. Although the sex difference was evident in regrets centering on both sexual and nonsexual relationship aspects, it was substantially larger for sexual regrets. These findings underscore the utility of applying an evolutionary perspective to better understand goal-regulating, cognitive processes.     

New evidence for “closure” in perception

A new criterion of perceptual grouping (Gillam, 1972), namely, that contours appear to reverse together under conditions of depth ambiguity, was used to test for the reality of “closure” and explore the parameters determining its degree. It was found that contours which would form a closed space but for a linear gap were responded to as a unit to a degree which decreased monotonically with gap size. Neither “proximal” nor “distal” gap was found to be the sole determinant of closure. Several levels of processing appear to be involved.

     

Defining reinforcess — A problem in communication for consultation in behavior modification

This paper reviews the respondent (Hull-Spence) and operant (Skinnerian) conditioning definitions of reinforcers and reinforcement and demonstrates the need to keep the systems separate when consulting about behavior modification. The two systems are shown to lead to different modification procedures.One important distinction between the systems is whether a reinforcer is simply associated with a response (respondent) or whether it must follow the response (operant). A second important distinction is the definition of negative reinforcement. In respondent conditioning, negative reinforcement entails presenting an aversive stimulus in association with the response and results in a decrease in response rate. In operant conditioning, negative reinforcement entails the removal of an aversive stimulus following a correct response, which results in an increase in response rate.     

Mythic perspectives for a world in distress∗

In a series of books and articles published over the past two decades, the authors have developed a five‐stage system for identifying and modifying the mythic structures that guide individual development. In this essay, they draw upon the integral relationship between personal and collective myths in applying this five‐stage model to contemporary social issues. They focus, in particular, on the mythic conflicts that underlie the tensions between progress and sustainability and between individualism and community. Based on the contradictory designs inherent in a prevailing myth and in an emerging myth, the authors present a dialectical model that is formulated to lead to a new myth that incorporates the most functional elements of old and emergent forces, while transcending their limitations. The essay closes with a discussion of social actions that may embed a new myth within a culture, along with the conditions that are required to effectively reinforce and maintain it.     

Riskier for me or for others? The role of domain and probability in self-other differences,in risky decision-making

Abstract

In social and economic interactions, people often decide differently for others, as against for themselves, under situations involving risks. This sometimes leads to conflicts or contradictions. Although previous studies have explored such contradictions, the findings have been inconsistent. To reconcile these inconsistencies, this paper investigates the role played by the different domains and probabilities in the self-other differences under risk. Two groups of participants completed a gambling task combining different domains (gain vs. loss) and probabilities (small vs. large). One group made decisions for others and the other group made decisions for themselves. The results revealed a four pattern of discrepancy: the ones who made decisions for others were less risk-seeking than those who made decisions for themselves over the small probability gains. This was reversed over the large probability gains. Conversely, the participants who made decisions for others were more risk-seeking than those who made decisions for themselves over the small probability losses. The results were reversed over the large probability losses. These results reconcile the contradictory findings of the previous studies and suggest the significant role played by contextual factors in such discrepancies.     

Atheism in religious clothing? Accounting for atheist interventions in the public sphere

In this paper I review several recent attempts to recast atheism in religious form in Canada, the US and the UK. First, several atheists have argued for the redefinition of atheism as a creed deserving of religious protections from the state. Second, various atheist ‘churches’ have gained publicity in recent years, in part due to their appropriation of the Protestant church format and the rhetoric of religious association. Both of these expressions of atheism stand in marked contradiction to older forms of atheism which emerged in response to (and rejection of) Christianity in the West, and they also stand in contrast to popular forms of atheism today, of the kind espoused by Christopher Hitchens and Richard Dawkins. As a result, the cases reviewed here represent the ways in which contemporary atheist movements constitute several different counterpublics, and they mark a significant change in the state’s acknowledgement of atheism as a positive form of belief.     

Very Early Decline in Recognition Memory for Odors in Alzheimer’s Disease

When in the progression of Alzheimer’s disease (AD) a decline in detection sensitivity and recognition memory for odors begins, and whether a fast progression in dementia is related to a fast loss in odor sensitivity, was determined by studying 78 patients with probable AD, categorized as very mild, mild, or moderate in degree of dementia, and 78 controls. Taste and vision were studied for comparison. Whereas the earliest decline in odor sensitivity and visual memory was found in mild patients, a decline in odor memory was found in the very mild patients. Similar taste thresholds in the four groups suggest that the poor odor detectability in AD was not related to task demands in threshold testing. A fast progression in dementia was also found to be related to a fast loss in odor sensitivity. The findings imply that memory-based olfactory tests may contribute to early diagnosis of AD.     

Evidence for a confidence–accuracy relationship in memory for same- and cross-race faces

Discrimination accuracy is usually higher for same- than for cross-race faces, a phenomenon known as the cross-race effect (CRE). According to prior research, the CRE occurs because memories for same- and cross-race faces rely on qualitatively different processes. However, according to a continuous dual-process model of recognition memory, memories that rely on qualitatively different processes do not differ in recognition accuracy when confidence is equated. Thus, although there are differences in overall same- and cross-race discrimination accuracy, confidence-specific accuracy (i.e., recognition accuracy at a particular level of confidence) may not differ. We analysed datasets from four recognition memory studies on same- and cross-race faces to test this hypothesis. Confidence ratings reliably predicted recognition accuracy when performance was above chance levels (Experiments 1, 2, and 3) but not when performance was at chance levels (Experiment 4). Furthermore, at each level of confidence, confidence-specific accuracy for same- and cross-race faces did not significantly differ when overall performance was above chance levels (Experiments 1, 2, and 3) but significantly differed when overall performance was at chance levels (Experiment 4). Thus, under certain conditions, high-confidence same-race and cross-race identifications may be equally reliable.     

Looking for a Family Man? Norms for Men Are Toppling in Heterosexual Relationships

Gender norms indicate that men should be agentic and work-oriented rather than communal and family-oriented. Yet, this traditional expectation conflicts with findings that communion is highly valued in romantic partners. Moreover, because more women in industrialized countries are pursuing careers, they may increasingly seek family-oriented partners to share the second shift of family tasks. Investigating the attractiveness of communal, family-oriented men, we show that 87 female college students in Belgium evaluate more family-oriented men as generally more attractive (Study 1) and that especially college women in Belgium with high work ambitions seek communion and family orientation in ideal partners (Study 2, n?=?224). Lastly, women in 198 Belgian heterosexual dual-earning couples are more satisfied with their lives and experience less work and family conflict the more their partner indicates that he is oriented toward his close family (Study 3). Together, our findings outline the contextualized nature of norms and add to knowledge on norm change, showing how gender equality may be fed through romantic relationships. Moreover, our findings suggest the importance of exploring men’s family orientations in couples therapy, and they call for counselors, as well as policymakers and Human Resources practitioners, to guide men in times of norm change to enable men to be family-oriented and to offer family-friendly work policies.

     

When is search for meaning in life beneficial for well-being? A cross-national study

Previous research has found cross-national variations in the association between search for meaning in life (SMIL) and well-being (i.e. SMIL–WB link). This study extended and tested a “self-improvement hypothesis” that accounts for such cross-national variations based on an international database—the sixth wave of World Values Survey. SMIL represents a self-improvement effort which is more demanded in contexts with stronger external constraints. Thus, we expected a stronger positive SMIL–WB link in such contexts. A series of multilevel analyses was used to verify this hypothesis. The results showed that the SMIL–WB link varied across different societies, with well-being indexed by happiness, life satisfaction and subjective health. Moreover, external constraints from cultural, social-institutional, economic and ecological contexts (collectivism, peace threats, economic scarcity and environmental threats) moderated the SMIL–WB links. We thus call for advancing SMIL theory by considering person–context interaction.     

Individual differences for sex differences in achievement attributions?

Past research has found a self-defensive bias in males and a self-derogatory bias in female achievement attributions. Dispositional explanations for these differences were examined in the present study. Subjects completed measures of Need for Achievement, Self-Esteem, Fear of Success, Attitudes Toward Women, and Androgyny. They later competed in same- or mixed-sex pairs on an anagram task which was prearranged in difficulty so that one subject clearly defeated his/her partner. Consistent with past research, males were more likely to attribute their outcomes to ability, and less likely to attribute their outcomes to effort and luck, than were females. Achievement motivation was the most consistently successful predictor of these sex differences.     

Explanations for “understating” in self-reported speeding behaviour

Self-report is a valuable methodology of social research, especially in regard to offending behaviour on and off the road. While assessing the validity of self-report is rarely easy, taking objective measures of drivers' speed choice behaviour does provide an opportunity to assess the correlation with subjective measures. Noting studies where this has been possible, research carried out by the author and colleagues in England which allowed similar assessments is discussed. Significant correlations resulted between reported and observed speed in all six surveys comprising the research, but they were of a low order. Analysis of the data showed a consistent and systematic bias towards drivers travelling above the 30 mph speed limit reporting their normal speeds as lower than those observed, with those travelling below the 30 mph speed limit reporting their speeds as higher than those observed. These patterns are discussed in light of other studies which have found tendencies either to overstate or to understate, and the possibilities that drivers either have difficulty reporting accurately or choose not to do so. Psychophysical limitations on accuracy of self-report and the social and cognitive processes that could mediate them are considered. In particular, the notion that drivers may seek to comply with normative speeds, and that these can be perceived as safer than complying with posted limits are discussed in light of normal police practice to tolerate low margins of excess speed.