Evolutionary Debunking Arguments Meet Evolutionary Science

Evolutionary debunking arguments appeal to selective etiologies of human morality in an attempt to undermine moral realism. But is morality actually the product of evolution by natural selection? Although debunking arguments have attracted considerable attention in recent years, little of it has been devoted to whether the underlying evolutionary assumptions are credible. In this paper, we take a closer look at the evolutionary hypotheses put forward by two leading debunkers, namely Sharon Street and Richard Joyce. We raise a battery of considerations, both empirical and theoretical, that combine to cast doubt on the plausibility of both hypotheses. We also suggest that it is unlikely that there is in the vicinity a plausible alternative hypothesis suitable for the debunker's cause.     

Split-Brain: What We Know Now and Why This is Important for Understanding Consciousness

Neuropsychology Review - Recently, the discussion regarding the consequences of cutting the corpus callosum (“split-brain”) has regained momentum (Corballis, Corballis, Berlucchi,...     

Inclusive Leadership and Employee Involvement in Creative Tasks in the Workplace: The Mediating Role of Psychological Safety

This study examines how inclusive leadership (manifested by openness, accessibility, and availability of a leader) fosters employee creativity in the workplace. Using a sample of 150 employees, we investigated the relationship between inclusive leadership (measured at Time 1), psychological safety, and employee involvement in creative work tasks (measured at Time 2). The results of structural equation modeling (SEM) analysis indicate that inclusive leadership is positively related to psychological safety, which, in turn, engenders employee involvement in creative work.     

The Effect of Humor on Aggression Catharsis in the Classroom

Two studies were designed to measure the cathartic effects of humor on aggressive responses. In the first study, two versions (easy and difficult) of Raven's intelligence test were administered to two groups of high school students. Only the easy version could be solved in the alloted time. Rosenzweig's (1951) Picture Frustration test was then administered and the students' aggressive responses were scored. Results showed that those who did not solve the problems had significantly higher scores on aggressivity than did the others. The second study, using four different groups, was planned according to a modified Solomon design. Two of the four groups of students completed the difficult part of the Raven test, and then two videotapes were presented: a humorous one to two groups and a neutral one to the others. Finally, the Rosenzweig Picture Frustration test was administered to all four groups. An analysis of variance computed on the aggressivity scores showed one significant difference: frustrated students who viewed the humorous videotape had lower scores than those viewing the neutral one.     

Post-combat adaptation: improving social support and reaching constructive growth

Background and Objectives: Posttraumatic stress disorder, a commonly researched mental health outcome associated with trauma, does not develop in the majority of survivors. More common trajectories of adaptation include resilience, and posttraumatic growth (PTG). The objectives of the current study were to: (1) describe posttrauma adaptation profiles in a sample of Israeli male military veterans (N?=?448); and (2) to explore the protective factors that promote constructive PTG within two profiles of posttrauma adaptation.

Methods: The study used secondary data to estimate latent profile mixture models and a series of logistic regression analyses.

Results: Demographic controls, combat related variables, endorsement of coping strategies, and reports of improvement in social support were not significant predictors of constructive growth in the resilient class. However, those in the struggling growth subset of the sample who reported improvement in perceived social support increased the odds of reaching constructive growth.

Conclusion: These findings highlight the importance of tailored clinical interventions that account for more complex profiles of posttrauma adaptation; and further, provide evidence that adaptation takes place over time. Finally, these findings call for future research to continue to explore the quality of PTG and the contexts in which protective factors promote positive adaptation.     

How does our search engine “see” the world? The case of amodal completion

This article illustrates a dissociation between the perceived attributes of an object and the ability of those attributes to guide the deployment of attention in visual search. Orientation is an attribute that guides search. Thus, a vertical line will “pop out” amid horizontal distractors. Amodal completion can create perceptually convincing oriented stimuli when two elements appear to form a complete object partially hidden behind an occluder. Previous work (e.g., Rensink &; Enns, Vision Research, 38, 2489–2505, 1998) has shown a preattentive role for amodal completion in search tasks. Here, we show that orientation based on perceptually compelling amodal completion may fail to guide attention. The broader conclusion is that introspection is a poor guide to the capabilities of our internal search engine.     

The Feeling of Not Knowing It All

How do consumers assess their mastery of knowledge they have learned? We explore this question by investigating a common knowledge consumption situation: encountering opportunities for further learning. We argue and show that such opportunities can trigger a feeling‐of‐not‐knowing‐it‐all (FONKIA), which lowers consumers’ confidence in their mastery of the knowledge they already possess. Specifically, listing optional follow‐up readings at the conclusion of a course lowered students’ confidence in their mastery of the course material they had already learned (Study 1). Encountering an optional learning opportunity increased the FONKIA, which mediated the decreased confidence (Studies 2 and 3). We also document two moderators consistent with our conceptualization. First, participants primed with mastery (vs. instrumental) motivation were more negatively impacted when they encountered optional learning opportunities. Second, the more related the optional opportunities were to the target topic, the lower participants’ confidence in their mastery of what they had already learned. We conclude by discussing the implications of these findings, such as encouraging further learning or harming teaching evaluations.     

Internet minimal group paradigm.

Over many years, social psychologists have sought to understand what causes individuals to form themselves into groups. Initially, it was believed that groups were formed when people bonded around a common goal. Later, it was found that, when individuals were divided into groups on a random basis, this in itself was sufficient for them to feel part of a group and show a preference for their own group over others. Since the environment in cyberspace is different from that of the offline world, for example, there is no physical proximity between participants; it may be assumed that it would be difficult to achieve feelings of affiliation among potential or actual group members. This pioneer study seeks to discover which components are requisite to the creation of a group identity among individuals surfing the Internet. For this experiment, 24 people were divided into two Internet chat groups according to their intuitive preference in a decision-making task. It was found that group members perceived their own group performance as superior on a cognitive task as compared with that of the other group. These results demonstrate that for surfers, the Internet experience is very real and even a trivial allocation of people to a group is likely to create a situation of ingroup favoritism.     

The effect of a reason's truth-value on the judgment of a fallacious argument

Informal reasoning fallacies are arguments that are psychologically persuasive but not valid. In the context of informal reasoning fallacies, the truth-value of the reason in support of a given claim is irrelevant to judging the validity of the argument as a whole. This property stands in sharp contrast with the general role of the reason's truth-value in judging arguments in general. The aim of this study was to test the hypothesis that in the context of informal reasoning fallacies the truth-value of a reason influences pupils' judgment of the extent to which the reason supports the claim. The results of the study confirm the research hypothesis.     

Neither Muslim nor Other: British Secular Muslims

Secular Muslims constitute a significant group within the Muslim population of the UK, though under the prevalent multicultural policies their voice is often ignored. This article introduces some of the more outspoken secular, ex-Muslim, and atheist British Muslims and analyses their positions toward major issues that preoccupy the Muslim community and society at large. The secularists are highly critical of multiculturalism for creating mutually hostile communities controlled by conservative religious leaders. In the heated public debate on Islamism, they oppose both its militant and its more pragmatic versions. They are strongly opposed to religious terrorism, and also to the imposition of Sharia law, the wearing of hijab, and separate Islamic schools, though they may differ as to the right ways to combat them. Caught between Islamism, which is often supported by the radical left, and the far right, Muslim secularists are among the staunchest supporters of universal human values and of integration.