Tuesday, December 25, 2018

Attraction to the similars: For all three relations, friendships, casual/short-term, & long-term, what counts is political views, career goals, food preferences, travel desires, & music preferences

 Domains of Similarity and Attraction in Three Types of Relationships. Stanislav Treger, James N. Masciale. Interpersona, 2018, Vol. 12(2), 254–266, doi:10.5964/ijpr.v12i2.321

Abstract: For decades, social scientists have observed that people greatly desire a partner who is similar to themselves. Less is known, however, about whether particular similarity domains (e.g., music preferences) may uniquely influence relationship formation. We address this gap by examining people’s preferences for 18 similarity domains in three types of relationships: friendships, casual/short-term, and long-term. The most important similarity domains, across the three relationship types, were political views, career goals, food preferences, travel desires, and music preferences. General similarity was most important in long-term rather than in friendships and casual/short-term relationships, with the latter two relationship types not differing from one another. This pattern emerged for all similarity domains with four exceptions: preferences for books, video games, computer brands, and cell phone brands. No sex differences emerged in similarity domains except in preferences in video games and brands of cell phones and computers. Men rated these domains to be more important than did women. All three of these differences were of relatively small effect size. We tie this work into the larger body of research on similarity and preferences for partner traits.

Keywords: attraction, mate preferences, similarity


Monday, December 24, 2018

Molecular-genetic correlates of hostile behavior in the young: robust relationships between propensity to hostile behavior with a low-active variant of the monoamine oxidase enzyme gene MAOA-A (LPR)

Molecular-genetic correlates of hostile behavior in teenagers and young adults. G.Avanesyan et al. International Journal of Psychophysiology, Volume 131, Supplement, October 2018, Page S67. https://doi.org/10.1016/j.ijpsycho.2018.07.197

Studying the problem of hostile behavior of people representing different age, ethnic, and cultural groups is becoming increasingly relevant, especially in complex and conflicted societies. To date, this field of research suffers from substantial shortage of studies that explore the relationships between hereditary factors and such psychological characteristic as “hostility.” Of a particular interest is the issue of the connection between the polymorphism of the MAOA gene (often associated with the development of such hereditary complications as mental disorders, dependencies, depression, and asocial traits) and the psychological characteristics of hostile strategies in behavior. The purpose of the study: To analyze the associations of the polymorphism of the MAOA gene with hostile behavior among adolescents and young adults. Participants, materials and method: 285 male adolescents and young adults (aged 12-19) composed the study sample. The Buss-Durkee Hostility inventory scales (in adaptation of A.K Osnitsky, 1998) were used as a measure of hostility. As a gene-candidate, the genotypes and alleles of the gene determining the work of the monoamine oxidase (MAOA) enzyme were considered. Isolating genomic DNA from buccal epithelium cells was used as a method for determining polymorphic variants of MAOA gene. Further statistical analysis and data processing were carried out using the PSPP program 0.8.5 and the program STATISTICA 6.1.478.

Study results: a low-active variant of the MAOA gene is found in 18% of the participants, high-activity variant in 63%. In 98% of young adults who have allele 3 (low enzyme activity), a high level of hostility is detected (according to the Buss-Durkee technique). The results of the single-factor analysis of variance, where the genetic parameters acted as an independent variable, and the dependent variables were different forms of manifestation of hostility, indicate the presence of robust relationships (F = 24.30, p b0.05) between propensity to hostile behavior with a low-active variant of the monoamine oxidase enzyme gene MAOA-A (LPR). Among the genetic polymorphisms of the MAOA gene that determine the risk of aggressive and hostile behavior, the low-active variant of the monoamine oxidase gene MAOA-A (LPR) plays the most important role in adolescents and young adults.

Sunday, December 23, 2018

Biological Processes Modulating Longevity across Primates: A Phylogenetic Genome-Phenome Analysis

Biological Processes Modulating Longevity across Primates: A Phylogenetic Genome-Phenome Analysis. Gerard Muntané et al. Molecular Biology and Evolution, Volume 35, Issue 8, 1 August 2018, Pages 1990–2004, https://doi.org/10.1093/molbev/msy105

Abstract: Aging is a complex process affecting different species and individuals in different ways. Comparing genetic variation across species with their aging phenotypes will help understanding the molecular basis of aging and longevity. Although most studies on aging have so far focused on short-lived model organisms, recent comparisons of genomic, transcriptomic, and metabolomic data across lineages with different lifespans are unveiling molecular signatures associated with longevity. Here, we examine the relationship between genomic variation and maximum lifespan across primate species. We used two different approaches. First, we searched for parallel amino-acid mutations that co-occur with increases in longevity across the primate linage. Twenty-five such amino-acid variants were identified, several of which have been previously reported by studies with different experimental setups and in different model organisms. The genes harboring these mutations are mainly enriched in functional categories such as wound healing, blood coagulation, and cardiovascular disorders. We demonstrate that these pathways are highly enriched for pleiotropic effects, as predicted by the antagonistic pleiotropy theory of aging. A second approach was focused on changes in rates of protein evolution across the primate phylogeny. Using the phylogenetic generalized least squares, we show that some genes exhibit strong correlations between their evolutionary rates and longevity-associated traits. These include genes in the Sphingosine 1-phosphate pathway, PI3K signaling, and the Thrombin/protease-activated receptor pathway, among other cardiovascular processes. Together, these results shed light into human senescence patterns and underscore the power of comparative genomics to identify pathways related to aging and longevity.

Keywords: evolution, longevity, primates, genotype-phenotype, aging

Kay and Ross (2003) priming findings not replicable, despite counting on higher power

Testing the effect of cooperative/competitive priming on the Prisoner’s Dilemma. A replication study. Anabel Belaus, Cecilia Reyna, Esteban Freidin. PLOS, Dec 20, https://doi.org/10.1371/journal.pone.0209263

Abstract: The replicability crisis in psychology demands direct replications to test the reliability of relevant phenomena. Prime-to-behavior effects have been an area under intense scrutiny given its surprising results. However, intuitive unsurprising effects have been mostly neglected, while they may lack robustness as well. In the present study, we focused on an intuitive prime-to-behavior effect in which Kay and Ross (2003) used a 2x2 design to test cooperation/competition priming crossed with an explicit/non-explicit construal of a Prisoner’s Dilemma (PD). They found a stronger assimilation effect of priming when the situational construal anteceded the decision, but we could not reproduce their findings in the present close replication, despite counting on higher power. Even with limitations due to the unavailability of original materials, this replication presents evidence that questions the existence of the original finding, and highlights the need for further replications to get a deeper understanding of the hypothesized effect. The complete project is available at: https://osf.io/dhfns/.

Saturday, December 22, 2018

Consumers are eager to express their evaluations with no ostensible purpose for doing so because externalizing one’s evaluations (likes/dislikes) enables a form of self-expression that appears to be deep & global

The Pleasure of Assessing and Expressing Our Likes and Dislikes. Daniel He Shiri Melumad Michel Tuan Pham. Journal of Consumer Research, ucy079, https://doi.org/10.1093/jcr/ucy079

Abstract: Although consumer-behavior theory has traditionally regarded evaluations as instrumental to consumer choice, in reality consumers often assess and express what they like and dislike even when there is no decision at stake. Why are consumers so eager to express their evaluations when there is no ostensible purpose for doing so? In this research, we advance the thesis that this is because consumers derive an inherent pleasure from assessing and expressing their likes and dislikes. In support of this thesis, the results of seven studies show that compared to a variety of simple and commonplace control judgments, assessing and expressing one’s likes and dislikes results in greater task enjoyment. This occurs because externalizing one’s evaluations enables a form of self-expression that appears to be deep and global. These findings have important implications for marketers and policymakers.

Keywords: evaluation, browsing, attitudes, affect, self-expression, hedonics


Who punishes promiscuous women? Both women and women, but only women inflict costly punishment

Who punishes promiscuous women? Both women and women, but only women inflict costly punishment. Naomi K. Muggleton, Sarah R. Tarran, Corey L. Fincher. Evolution and Human Behavior, https://doi.org/10.1016/j.evolhumbehav.2018.12.003

Abstract: Across human societies, female sexuality is suppressed by gendered double standards, slut shaming, sexist rape laws, and honour killings. The question of what motivates societies to punish promiscuous women, however, has been contested. Although some have argued that men suppress female sexuality to increase paternity certainty, others maintain that this is an example of intrasexual competition. Here we show that both sexes are averse to overt displays of female sexuality, but that motivation is sex-specific. In all studies, participants played an economic game with a female partner whose photograph either signalled that she was sexually-accessible or sexually-restricted. In study 1, we found that men and women are less altruistic in a Dictator Game (DG) when partnered with a woman signalling sexual-accessibility. Both sexes were less trusting of sexually-accessible women in a Trust Game (TG) (study 2); women (but not men), however, inflicted costly punishment on a sexually-accessible woman in an Ultimatum Game (UG) (study 3). Our results demonstrate that both sexes are averse to overt sexuality in women, whilst highlighting potential differences in motivation.

Go to More Parties? Rather than a time out from “real” life, social occasions hold an outsized potential to unexpectedly shift the course that real life takes

Goffman, A. (2018). Go to More Parties? Social Occasions as Home to Unexpected Turning Points in Life Trajectories. Social Psychology Quarterly, https://doi.org/10.1177/0190272518812010

Abstract: Reviving classical attention to gathering times as sites of transformation and building on more recent microsociological work, this paper uses qualitative data to show how social occasions open up unexpected bursts of change in the lives of those attending. They do this by pulling people into a special realm apart from normal life, generating collective effervescence and emotional energy, bringing usually disparate people together, forcing public rankings, and requiring complex choreography, all of which combine to make occasions sites of inspiration and connection as well as sites of offense and violation. Rather than a time out from “real” life, social occasions hold an outsized potential to unexpectedly shift the course that real life takes. Implications for microsociology, social inequality, and the life course are considered.

Keywords: emotions, interaction rituals, life course, microsociology, qualitative methods

Retraction of Sternberg (2012) "A model for ethical reasoning": Although the claims in the article seem valid, the retraction is to address substantial overlap with the author’s previously published works

"A model for ethical reasoning": Retraction of Sternberg (2012). (2018). Review of General Psychology, 22(4), 420. http://dx.doi.org/10.1037/gpr0000167

Abstract: Reports the retraction of "A model for ethical reasoning" by Robert J. Sternberg (Review of General Psychology, 2012[Dec], Vol 16[4], 319-326). Although the claims in the article are scientifically valid, the retraction is to address substantial overlap with the author’s previously published works. Those previous works are as follows: Sternberg, R. J. (2010). Teaching for ethical reasoning in liberal education. Liberal Education, 96. Retrieved from https://www.aacu.org/publications-research/periodicals/teaching-ethical-reasoning-liberal-education. Sternberg, R. J. (2012). Teaching for ethical reasoning. International Journal of Educational Psychology, 1, 35–50. http://dx.doi.org/10.4471/ijep.2012.03 The Editor was alerted to this potential overlap, which was then confirmed. (The following abstract of the original article appeared in record 2012-31876-001.) This article presents a model of ethical reasoning. The article reviews lapses in ethical reasoning and the great costs they have had for society. It presents an eight-step model of ethical reasoning that can be applied to ethical challenges and illustrates its application. It proposes that ethical reasoning can be taught across the curriculum. It further points to a source of frustration in the teaching and application of ethics: ethical drift. Finally it draws conclusions.