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.

Friday, December 21, 2018

The Persistence of the Power Elite: Presidential Cabinets and Corporate Interlocks, 1968–2018

The Persistence of the Power Elite: Presidential Cabinets and Corporate Interlocks, 1968–2018. Timothy M. Gill. Social Currents,
https://doi.org/10.1177/2329496518797857

Abstract: In his seminal text, The Power Elite, C. Wright Mills initially drew critical attention to U.S. state power, asserting that economic, political, and military elites flow through a revolving door, cycling in and out of positions of power. Following its publication, several social scientists began to examine the nature of the U.S. state, including individuals like G. William Domhoff and Michael Useem. One particular work by Peter Freitag examined the class composition of presidential cabinets. Freitag examined whether presidential cabinet members came from the elite corporate sphere, went into the elite corporate sphere following their tenure in office, the extent of interlocks among the Democratic and Republican Parties, and whether particular cabinet positions were more interlocked with the elite corporate sphere than others. In this article, I examine these same questions, looking at presidential cabinets between 1968 and 2018, that is, across the last half-century. In doing so, I find consistency with many of Freitag’s initial findings: most presidential cabinets remain heavily interlocked, there is little difference between Democratic and Republican cabinets, and there is a significant amount of cabinet members that come from and enter the elite corporate sphere following their time in office.

Keywords: U.S. politics, political sociology, class, corporations, the state

Evolutionary approaches to understanding crime: explaining the gender gap in offending

Evolutionary approaches to understanding crime: explaining the gender gap in offending. Russil Durrant. Psychology, Crime & Law, https://doi.org/10.1080/1068316X.2018.1558224

ABSTRACT: Evolutionary approaches have the potential to make significant contributions to our understanding of criminal offending. In particular, an evolutionary perspective can help in the development of more comprehensive explanations for the main correlates of offending such as gender, age, and social class. In this article I argue that that an evolutionary perspective that draws on the conceptual resources of the extended evolutionary synthesis can help us to explain why men are more likely to be perpetrators of crime compared to women. First, I will outline the key conceptual characteristics of the extended evolutionary synthesis and tease out the implications of this approach for understanding the evolution of human behaviour. Next, I will discuss how an evolutionary approach can help us to understand the gender gap in offending. I will then present a model which outlines how an extended evolutionary perspective can usefully integrate different kinds of explanation to provide a more comprehensive explanatory account of gender differences in crime. I conclude by considering some of the wider implications of this model for crime prevention.

KEYWORDS: Evolutionary psychology, extended evolutionary synthesis, biosocial criminology, gender gap in offending

Adolescents with a trajectory of early & regular pornography use are more likely to report the initiation of sexual activity & nearly double the number of sexual partners as those with a low-use trajectory

Risk or Release?: Porn Use Trajectories and the Accumulation of Sexual Partners
Kyler R. Rasmussen, Alex Bierman. Social Currents, https://doi.org/10.1177/2329496518780929

Abstract: A central question in the study of pornography consumption is whether consumption influences risky sexual behavior. In this research, we focus on one key aspect of risky sexual behavior, the accumulation of sexual partners. Using longitudinal latent class analysis of a nationally representative sample, we determine distinct trajectories of pornography consumption. We then use hurdle models to relate membership in these trajectories to the initiation of sexual activity and accumulation of sexual partners. Even with controls for likely confounds (such as risk-taking propensity and relationship formation), we find that adolescents with a trajectory of early and regular pornography use are more likely to report the initiation of sexual activity and nearly double the number of sexual partners as those with a low-use trajectory. This research is of sociological interest because pornography consumption is becoming increasingly common well before adulthood, suggesting that recent cohorts of emerging adults may be more likely to engage in risky sexual behavior through the accumulation of multiple sexual partners.

Keywords: pornography, sexual risk, hurdle models, latent class analysis

Nonreligion is socially risky, atheism is more socially risky than other forms of nonreligion, & women and members of other marginalized groups avoid the most socially risky forms of nonreligion

From Existential to Social Understandings of Risk: Examining Gender Differences in Nonreligion. Penny Edgell, Jacqui Frost, Evan Stewart. Social Currents, Dec 2018. https://doi.org/10.1177/2329496516686619

Abstract: Across many social contexts, women are found to be more religious than men. Risk preference theory proposes that women are less likely than men to accept the existential risks associated with nonbelief. Building on previous critiques of this theory, we argue that the idea of risk is relevant to understanding the relationship between gender and religiosity if risk is understood not as existential, but as social. The research on existential risk focuses on religious identification as solely a matter of belief; as part of the movement away from this cognitivist bias, we develop the concept of social risk to theorize the ways that social location and differential levels of power and privilege influence women’s nonreligious choices. We show that women’s nonreligious preferences in many ways mirror those of other marginalized groups, including nonwhites and the less educated. We argue that nonreligion is socially risky, that atheism is more socially risky than other forms of nonreligion, and that women and members of other marginalized groups avoid the most socially risky forms of nonreligion.

Keywords: nonreligion, atheism, risk, gender

Conservatives donate more blood but less organs: care more about human body integrity, are more disgusted by the very act of organ donations, & believe that signing onto organ registries would be tempting fate

The politics of intent: Political ideology influences organ donation intentions. Eugene Y. Chan. Personality and Individual Differences, https://doi.org/10.1016/j.paid.2018.12.022

Abstract: The low supply of organs is a global concern. It is crucial to recognize the barriers, whether cognitive or emotional, that influence individuals' willingness to sign up onto organ donation registries. In the current investigation, we hypothesize that a politically-conservative ideology reduces people's organ donation intentions. This is likely since individuals with a conservative ideology care more about the integrity of the human body, are more disgusted by the very act of organ donations, and believe that signing onto such registries would be tempting fate. We test and confirm this possibility in a study with 148 Australians. The findings indicate that political ideology can be a predictor of individuals' likelihood of becoming organ donors.

In a large-scale replication & extension of Hsee et al. 2013, we cannot confirm the original paper’s findings, that mindless accumulation is a quantitatively relevant driver of overearning behavior

Overearning – Revisited. Nadine Riedel, Robert Stüber. Journal of Economic Psychology, https://doi.org/10.1016/j.joep.2018.12.009

Highlights
•    Replicate the study of Hsee, Zhang, Cai, and Zhang (2013) in a large sample of German students
•    Reject that mindless accumulation is a quantitatively relevant driver of overearning
•    Analyze the effect of task enjoyment, uncertainty and social comparison on overearning
•    Test for overearning in a dynamic setting
•    Revisit the effect of earnings caps on happiness

Abstract: In a 2013 Psychological Science article, Hsee et. al designed a controlled laboratory experiment to assess whether individuals overearn, i.e., forgo leisure to work and earn beyond their consumption needs. The authors reported evidence in line with people overearning, even at the cost of happiness, and in line with mindless accumulation being the driver of this finding. In a large-scale replication and extension of Hsee et al. (2013), we cannot confirm the original paper’s findings: Our results reject that mindless accumulation is a quantitatively relevant driver of overearning behavior. In direct replications of Hsee et al. (2013), overearning turns out to be a moderate phenomenon. Extensions to the original paper, however, suggest that task enjoyment and uncertainty about future utility of consumption may establish overearning.

Native American Beauty Standards: “paling” in Comparison to the White Norm

Marrinan, Kristen. 2018. “American Beauty Standards: “paling” in Comparison to the White Norm.” SocArXiv. December 20. doi:10.31235/osf.io/8bnh7

Abstract: America has a culturally accepted norm of what makes someone beautiful. A standard that is hard to meet. Being light-skinned, blonde and blue-eyed is the benchmark of beauty, of what is most desirable. But is that really what it takes to be attractive in America? This research examines the relationship between race, birth-place, ethnicity and self-rated attractiveness. The General Social Survey (2016) provides the quantitative data for this study. While past literature explores the connections between identity, self-esteem, and attractiveness, it does not explore the intersection of different identifying characteristics. Group position and Colourism approaches provide the theoretical foundations for the hypothesis and the research conducted in this paper. These theories also help explain why certain physical attributes are more valuable in American society. So how does the privileging of White America, specifically when measuring beauty, influence one’s opinion of their own attractiveness? This study has 1,622 respondents—non-institutionalized, English or Spanish speaking adults, who live in the country. Multiple regression analysis was used to examine the individual and collaborative relationships between the variables. The results from this study concur with some of findings from the literature. Yet, they do not support the hypotheses. The results concluded that being Non-White had little influence on one's self-rated attractiveness. Similarly, birthplace and ethnicity had no statistical significance. However, the controls, age and sex, are significant. This research explores the role identity plays in one’s view of their own beauty. Especially during a period of controversial leadership and drastic shifts in the social norms of society.

Found little evidence that the accumulation of treatment development & testing across decades increased psychotherapies benefit, 1960-2017

Are Psychotherapies for Young People Growing Stronger? Tracking Trends Over Time for Youth Anxiety, Depression, Attention-Deficit/Hyperactivity Disorder, and Conduct Problems. John R. Weisz et al. Perspectives on Psychological Science, https://doi.org/10.1177/1745691618805436

Abstract: ith the development of empirically supported treatments over the decades, have youth psychotherapies grown stronger? To investigate, we examined changes over time in treatment effects for four frequently treated youth mental-health problems: anxiety, depression, attention-deficit hyperactivity disorder (ADHD), and conduct disorders. We used PubMed and PsycINFO to search for randomized controlled trials (RCTs) that were published between January 1960 and May 2017 involving youths between the ages of 4 and 18 years. We also searched reviews and meta-analyses of youth psychotherapy research, followed reference trails in the reports we identified, and obtained additional studies identified by therapy researchers whom we contacted. We identified 453 RCTs (31,933 participants) spanning 53 years (1963–2016). Effect sizes for the problem-relevant outcome measures were synthesized via multilevel meta-analysis. We tracked temporal trends for each problem domain and then examined multiple study characteristics that might moderate those trends. Mean effect size increased nonsignificantly for anxiety, decreased nonsignificantly for ADHD, and decreased significantly for depression and conduct problems. Moderator analyses involving multiple study subgroups showed only a few exceptions to these surprising patterns. The findings suggest that new approaches to treatment design and intervention science may be needed, especially for depression and conduct problems. We suggest intensifying the search for mechanisms of change, making treatments more transdiagnostic and personalizable, embedding treatments within youth ecosystems, adapting treatments to the social and technological changes that alter youth dysfunction and treatment needs, and resisting old habits that can make treatments unduly skeuomorphic.

Keywords: psychotherapy, children, adolescents, youth, meta-analysis, mental health

Neither facial attractiveness nor its constituents, such as symmetry, are a reliable mirror of a person's health, but facial adiposity -the perceived weight in the face- is

Facial Adiposity, Attractiveness, and Health: A Review. Stefan de Jager, Nicoleen Coetzee and Vinet Coetzee. Front. Psychol., Dec 21 2018. https://doi.org/10.3389/fpsyg.2018.02562

Abstract: The relationship between facial cues and perceptions of health and attractiveness in others plays an influential role in our social interactions and mating behaviors. Several facial cues have historically been investigated in this regard, with facial adiposity being the newest addition. Evidence is mounting that a robust link exists between facial adiposity and attractiveness, as well as perceived health. Facial adiposity has also been linked to various health outcomes such as cardiovascular disease, respiratory disease, blood pressure, immune function, diabetes, arthritis, oxidative stress, hormones, and mental health. Though recent advances in the analysis of facial morphology has led to significant strides in the description and quantification of facial cues, it is becoming increasingly clear that there is a great deal of nuance in the way that humans use and integrate facial cues to form coherent social or health judgments of others. This paper serves as a review of the current literature on the relationship between facial adiposity, attractiveness, and health. A key component in utilizing facial adiposity as a cue to health and attractiveness perceptions is that people need to be able to estimate body mass from facial cues. To estimate the strength of the relationship between perceived facial adiposity and body mass, a meta-analysis was conducted on studies that quantified the relationship between perceived facial adiposity and BMI/percentage body fat. Summary effect size estimates indicate that participants could reliably estimate BMI from facial cues alone (r = 0.71, n = 458).

Thursday, December 20, 2018

Our findings support a view in which retronasal, but not orthonasal, odors share processing circuitry commonly associated with taste; this happens also in rats, which was disputed

Retronasal Odor Perception Requires Taste Cortex, but Orthonasal Does Not. Meredith L. Blankenship, Maria Grigorov, Donald B. Katz, Joost X. Maier. Current Biology, https://doi.org/10.1016/j.cub.2018.11.011

Highlights
•    Retronasal, but not orthonasal, odors facilitate rapid preference learning
•    Preferences for retronasal odors are not expressed orthonasally
•    Retronasal odors potentiate the formation of orthonasal preferences
•    Inactivating taste cortex selectively impairs expression of retronasal preferences

Summary: Smells can arise from a source external to the body and stimulate the olfactory epithelium upon inhalation through the nares (orthonasal olfaction). Alternatively, smells may arise from inside the mouth during consumption, stimulating the epithelium upon exhalation (retronasal olfaction). Both ortho- and retronasal olfaction produce highly salient percepts, but the two percepts have very different behavioral implications. Here, we use optogenetic manipulation in the context of a flavor preference learning paradigm to investigate differences in the neural circuits that process information in these two submodalities of olfaction. Our findings support a view in which retronasal, but not orthonasal, odors share processing circuitry commonly associated with taste. First, our behavioral results reveal that retronasal odors induce rapid preference learning and have a potentiating effect on orthonasal preference learning. Second, we demonstrate that inactivation of the insular gustatory cortex selectively impairs expression of retronasal preferences. Thus, orally sourced (retronasal) olfactory input is processed by a brain region responsible for taste processing, whereas externally sourced (orthonasal) olfactory input is not.

People may intuitively believe that exchanging ever-more information will foster better-informed opinions & perspectives—but much of this information may be lost on minds long made up

People use less information than they think to make up their minds. Nadav Klein and Ed O’Brien. Proceedings of the National Academy of Sciences, https://doi.org/10.1073/pnas.1805327115

Significance: People readily categorize things as good or bad, a welcome adaptation that enables action and reduces information overload. The present research reveals an unforeseen consequence: People do not fully appreciate this immediacy of judgment, instead assuming that they and others will consider more information before forming conclusions than they and others actually do. This discrepancy in perceived versus actual information use reveals a general psychological bias that bears particular relevance in today’s information age. Presumably, one hopes that easy access to abundant information fosters uniformly more-informed opinions and perspectives. The present research suggests mere access is not enough: Even after paying costs to acquire and share ever-more information, people then stop short and do not incorporate it into their judgments.

Abstract: A world where information is abundant promises unprecedented opportunities for information exchange. Seven studies suggest these opportunities work better in theory than in practice: People fail to anticipate how quickly minds change, believing that they and others will evaluate more evidence before making up their minds than they and others actually do. From evaluating peers, marriage prospects, and political candidates to evaluating novel foods, goods, and services, people consume far less information than expected before deeming things good or bad. Accordingly, people acquire and share too much information in impression-formation contexts: People overvalue long-term trials, overpay for decision aids, and overwork to impress others, neglecting the speed at which conclusions will form. In today’s information age, people may intuitively believe that exchanging ever-more information will foster better-informed opinions and perspectives—but much of this information may be lost on minds long made up.

Keywords: tipping point, change, self-insight, judgment, information processing

Do movements contribute to sense of body ownership? Rubber hand illusion in expert pianists

Do movements contribute to sense of body ownership? Rubber hand illusion in expert pianists. Maria Pyasik, Adriana Salatino, Lorenzo Pia. Psychological Research, https://link.springer.com/article/10.1007/s00426-018-1137-x

Abstract: Currently, it is still debated whether, how and to what extent movements contribute to the sense of body ownership (i.e., the feeling that one’s body belongs to oneself). To answer this question, here we examined if a prolonged increase of the amount of movements affects body ownership. Specifically, we administered the rubber hand illusion paradigm within a natural condition of long-term motor practice, namely in expert pianists. We compared the illusory effects of both static (visuotactile stimulation) and dynamic (active/passive movements) versions of that paradigm in a group of expert pianists and a group of non-musicians. The illusion was measured behaviorally (proprioceptive drift) and subjectively (questionnaire). Our results showed that pianists were significantly less susceptible to any type of the illusion, compared to the non-musicians. Moreover, they did not experience the illusion in general (presenting neither the proprioceptive drift, nor the subjective feeling of ownership). These findings suggest that the increased amount of motor-related afferent and efferent signals does affect the construction and the coherence of body ownership, thus showing the role of movements in this process.

Those with larger late positive potentials in response to food‐related cues than to erotic images are more susceptible to cue‐induced eating, eat more than twice as much than those with the opposite bran reaction

The reality of “food porn”: Larger brain responses to food‐related cues than to erotic images predict cue‐induced eating. Francesco Versace et al. Psychiohysiology, https://doi.org/10.1111/psyp.13309

Abstract: While some individuals can defy the lure of temptation, many others find appetizing food irresistible. The goal of this study was to investigate the neuropsychological mechanisms that increase individuals’ vulnerability to cue‐induced eating. Using ERPs, a direct measure of brain activity, we showed that individuals with larger late positive potentials in response to food‐related cues than to erotic images are more susceptible to cue‐induced eating and, in the presence of a palatable food option, eat more than twice as much as individuals with the opposite brain reactivity profile. By highlighting the presence of individual brain reactivity profiles associated with susceptibility to cue‐induced eating, these findings contribute to the understanding of the neurobiological basis of vulnerability to obesity.

School Bullying: Perpetrators and victims had relatively stable trajectories with most of the children remaining in the same role over time or becoming uninvolved

A Longitudinal Study on Stability and Transitions Among Bullying Roles. Izabela Zych et al. Child Development, https://doi.org/10.1111/cdev.13195

Abstract: Trajectories of stability and change in bullying roles were examined through a longitudinal prospective study of 916 school students followed up biannually from age 11 to 17. Perpetrators and victims had relatively stable trajectories with most of the children remaining in the same role over time or becoming uninvolved. Bully/victim was the most unstable role with frequent transitions to perpetrators or victims. Developmental change in bullying roles was found with a decrease in physical forms over time in bullies and victims but with persistently high perpetration and victimization in bully/victims. These findings open new horizons in research and practice related to bullying and can be useful for its early detection or design of targeted interventions.