Improving intergroup relations with extended and vicarious forms of indirect contact

Research in social psychology has provided impressive evidence that intergroup contact reduces prejudice. However, to the extent that strategies based on direct contact are sometimes difficult to implement, scholars have more recently focused on indirect contact. An effective form of indirect contact is extended contact. According to the extended contact hypothesis, simply knowing that ingroup members have outgroup friends (extended contact), or observing these friendships vicariously (vicarious contact), can improve intergroup relations. Since its initial formulation a large body of studies has supported the validity of the extended contact hypothesis. In reviewing the available literature on two forms of indirect contact (extended and vicarious), we outline a model that identifies their antecedents and consequences, spanning from cognitive to affective to behavioural outcomes. In addition to identifying the main moderators of indirect contact, we also distinguish two different routes, one cognitive and one affective, that underlie what processes mediate their effects. Finally, we indicate some possible avenues for future research and we consider how direct and indirect contact strategies can be used in combination to improve intergroup relations.     

The Aesthetic Preference for Nature Sounds Depends on Sound Object Recognition

People across the world seek out beautiful sounds in nature, such as a babbling brook or a nightingale song, for positive human experiences. However, it is unclear whether this positive aesthetic response is driven by a preference for the perceptual features typical of nature sounds versus a higher‐order association of nature with beauty. To test these hypotheses, participants provided aesthetic judgments for nature and urban soundscapes that varied on ease of recognition. Results demonstrated that the aesthetic preference for nature soundscapes was eliminated for the sounds hardest to recognize, and moreover the relationship between aesthetic ratings and several measured acoustic features significantly changed as a function of recognition. In a follow‐up experiment, requiring participants to classify these difficult‐to‐identify sounds into nature or urban categories resulted in a robust preference for nature sounds and a relationship between aesthetic ratings and our measured acoustic features that was more typical of easy‐to‐identify sounds. This pattern of results was replicated with computer‐generated artificial noises, which acoustically shared properties with the nature and urban soundscapes but by definition did not come from these environments. Taken together, these results support the conclusion that the recognition of a sound as either natural or urban dynamically organizes the relationship between aesthetic preference and perceptual features and that these preferences are not inherent to the acoustic features. Implications for nature's role in cognitive and affective restoration are discussed.     

Safety behaviour does not necessarily interfere with exposure therapy

There has been much recent controversy regarding whether or not the use of safety and other neutralizing behaviour interferes with exposure-based therapy. The aim of this study was to examine the role of safety behaviour in the treatment of specific phobia. Sixty-two snake-fearful participants were randomized to a 45-min exposure session with or without the use of safety gear, such as gloves and goggles. During the treatment, participants in the safety behaviour group were able to achieve a significantly closer initial distance of approach to the snake compared to controls. When tested post-treatment without any safety gear, both groups demonstrated comparable treatment gains involving significant reductions in fearful cognitions and subjective anxiety, as well as significant improvements in distance of approach. Results suggest that reliance on safety behaviour during exposure therapy for anxiety disorders may not interfere with treatment outcome.     

Rasch analysis and item reduction of the hypomanic personality scale

The aim of the current study was to reduce the number of items in the 48-item hypomanic personality scale (HPS) and determine whether a unidimensional scale of the hypomanic trait could be derived. Previously collected HPS data from University students (n = 318) were applied to the Rasch model (one-parameter item response theory). Overall scale and individual item fit statistics were used to judge fit to the model and item maps employed to determine coverage of the trait. Cronbach’s Alpha and correlations with other questionnaires pre- and post-item reduction were evaluated. Rasch analysis indicated that the original HPS was not unidimensional, had significant redundancy and differential item functioning by age and gender. An iterative process of item reduction produced a 20-item HPS (HPS-20) that retained the concepts of the original HPS and had excellent fit to the Rasch model (χ² p = 0.27). Unidimensionality of the HPS-20 was confirmed. The traditional psychometric properties of the HPS-20 and coverage of the underlying hypomanic construct were similar to the original. It was possible to derive a unidimensional measure of the hypomanic trait. Further use of the HPS-20 is encouraged as it may increase understanding of the risk factors for affective disorders.     

Three Questions about Minding God

Abstract. Gregory Peterson's Minding God does an excellent job of introducing the cognitive sciences to the general reader and drawing preliminary connections between these disciplines and some of the loci of theology. The book less successfully articulates how the cognitive sciences should impact the future of theology. In this article I pose three questions: (1) What semantics is presupposed in relating the languages of theology and the cognitive sciences? How do the truth conditions of these disparate disciplines relate? (2) What precisely does theology gain from what is central to cognitive science: the emphasis on information processing, inner representation, and the computer model of the mind? What exactly does cognitive science offer to theology beyond the now‐standard rejection of Cartesian dualism, the affirmation of an embodied mind, and the repudiation of reduction? (3) What can the cognitive sciences offer in tackling crucial questions in the theology‐science discussion such as divine agency and divine causation? Finally, I point to a possible begging of the question in the claim that cognitive science relates to theology because theology deals with meaning and purpose, and a particular interpretation of cognitive science grants more meaning and purpose to human beings than antecedent post‐Cartesian positions in the philosophy of mind.     

Hindu Perspectives on the Thirst for Transcendence

Abstract. Definitions of nature and transcendence are given, and the framework of Hindu thought is presented. The levels of reality as discovered by physics are then discussed, which leads us to revise our notions of reality and objectivity. Transcendence is defined as something beyond matter‐energy in space‐time and is explored in several contexts of modern science, as in pre‐Big‐Bang state, negative entropy, information, complexity, and others. Finally, a philosophical reflection on consciousness is presented.     

System JLZ – rational default reasoning by minimal ranking constructions

We present a powerful quasi-probabilistic default formalism for graded defaults based on a well-motivated canonical ranking construction procedure, System JLZ. It implements the minimal construction paradigm and verifies the major inference principles and inheritance desiderata, including rational monotony for propositions and structured cumulativity for default conditionals. With help from a structured ranking semantics for defaults, it also avoids some drawbacks of semi-qualitative entropy maximization and other competing accounts.     

Spontaneous rotation of nanoparticles in a medium

In many experiments, the effects of spontaneous rotation of nanoparticles in a medium have been observed. In the article it has been shown that the reason for the spontaneous rotation of nanoparticles in a medium may be due to an increase in rotational entropy that accompanies the increasing rotational frequencies of the nanoparticles. An equation describing the rotational motion of the nanoparticles in a medium is obtained and its solution is found. It is shown that the formation of a large number of randomly oriented nanocrystals may be a reason for the forming of an amorphous phase upon cooling a melt.