Seen a widening gap between star firms (defined as those in top 10% of return on invested capital in any year) & the rest of the economy over time, especially in industries that rely on a skilled labor force, until you measure well intangible capital

Ayyagari, Meghana and Demirgüç-Kunt, Asli and Maksimovic, Vojislav, Who are America's Star Firms? (August 13, 2018). http://dx.doi.org/10.2139/ssrn.3230154

Abstract: There is widespread concern about a growing gap between top-performing publicly listed firms and the rest of the economy and the implications of this for rising inequality in the U.S. Using conventional return calculations, there is indeed a widening gap between star firms (defined as those in top 10% of return on invested capital in any year) and the rest of the economy over time, especially in industries that rely on a skilled labor force. However, once measurement error in intangible capital is accounted for, this gap shrinks dramatically and has not been widening over time. While pricing power, as measured by markups, predicts star firm status, a large fraction of star firms have low markups and there is no evidence that star firms are cutting output or investment more than other firms for the same markup. The effect of star status is persistent. Five years later, star firms have higher growth, pro ts, and Tobin's Q. A small subset of exceptional firms may pose more pressing policy concerns with much higher returns and the potential to exercise market power in the future.

Keywords: star firms, intangible capital, organizational capital, industry concentration, ROIC, capital expenditure
JEL Classification: G30, G31, G32, L22, L23, L25

We knew that people search for balance in moral behavior such that they feel licensed to behave less morally after a previous moral act (licensing) & cleanse previous morally questionable behaviors by subsequently behaving more morally (cleansing)

Taking Close Others’ Environmental Behavior Into Account When Striking the Moral Balance? Evidence for Vicarious Licensing, Not for Vicarious Cleansing. Marijn H. C. Meijers et al. Environment and Behavior, https://doi.org/10.1177/0013916518773148

Abstract: Research shows that people search for balance in their moral (e.g., environmentally friendly) behaviors such that they feel licensed to behave less morally after a previous moral act (licensing) and cleanse previous morally questionable behaviors by subsequently behaving more morally (cleansing). This article investigates whether this balancing may extend to close others, but not to nonclose others, and tests vicarious licensing and cleansing in the environmental domain. Study 1 showed that vicarious licensing effects are more likely when a close other displayed environmentally friendly (vs. neutral) behavior. Study 2 showed that environmental vicarious licensing effects are more likely for close than nonclose others. Studies 3 and 4 suggested that vicarious licensing effects, but not vicarious cleansing effects are more likely for close (vs. nonclose) others. Finally, a meta-analysis showed that overall these studies provide evidence for vicarious licensing effects, but not for vicarious cleansing effects in the environmental domain.

Keywords: environmentally friendly, licensing, cleansing, vicarious, self–other overlap, morality

We ask whether people in a strategic situation follow the Golden Rule, that is, do not treat others in ways that they find disagreeable to themselves; over three quarters of the experiments' subjects do so

Role-Reversal Consistency: An Experimental Study of the Golden Rule. Miguel A. Costa‐Gomes, Yuan Ju, Jiawen Li. Economic Inquiry, https://doi.org/10.1111/ecin.12708

Abstract: We report an experiment that asks whether people in a strategic situation behave according to the Golden Rule, that is, do not treat others in ways that they find disagreeable to themselves, a property that we call role‐reversal consistency. Overall, we find that over three quarters of the subjects are role‐reversal consistent. Regression analysis suggests that this finding is not driven by players maximizing their subjective expected monetary earnings given their stated beliefs about their opponents' behavior. We find that subjects' stated beliefs and actions reveal mild projection bias. (JEL C78, C91)

Jerkies, tacos, burgers: individuals low on subjective socioeconomic status have a greater preference for meat, effect driven by a desire for status & not by felt hunger or power, & not generalizable to plant foods

Jerkies, tacos, and burgers: Subjective socioeconomic status and meat preference. Eugene Y. Chan, Natalina Zlatevska. Appetite, https://doi.org/10.1016/j.appet.2018.08.027

Abstract: In mankind's evolutionary past, those who consumed meat were strong and powerful and thus man saw meat as indicative of social status. This symbolic connection between meat and status persists today. Thus, based upon psychological theories of compensation, individuals low on subjective socioeconomic status (SES) should have a greater preference for meat, as meat may be substitutable for the status that they lack. Three experiments tested this premise. Participants who felt low on subjective SES preferred meat-based foods compared to participants who felt high on it (Experiment 1). The effect is driven by a desire for status (Experiments 2–3) and not by felt hunger or power (Experiments 1–2) and not generalizable to plant foods (Experiment 3). The results suggest a symbolic link between meat and status, which has intriguingly not yet been empirically shown, and we also demonstrate a consequence of the link for food preference. The results may be of use for doctors who advise eating less meat to improve physical health and for environmental advocates who argue that meat consumption exacerbates global warming. We will also discuss the contributions of and further avenues based on our work.

Participants stated their opinions about salient political issues, & we covertly altered some of their responses to indicate an opposite position; we asked to verify the manipulated responses, & only half of the manipulations were corrected by the participants

False beliefs and confabulation can lead to lasting changes in political attitudes. Strandberg T, Sivén D, Hall L, Johansson P, Pärnamets P. Journal of experimental psychology. General 147:9 2018 Sep pg 1382-1399. http://psycnet.apa.org/record/2018-42340-004

Abstract: In times of increasing polarization and political acrimony, fueled by distrust of government and media disinformation, it is ever more important to understand the cognitive mechanisms behind political attitude change. In two experiments, we present evidence that false beliefs about one's own prior attitudes and confabulatory reasoning can lead to lasting changes in political attitudes. In Experiment 1 (N = 140), participants stated their opinions about salient political issues, and using the Choice Blindness Paradigm we covertly altered some of their responses to indicate an opposite position. In the first condition, we asked the participants to immediately verify the manipulated responses, and in the second, we also asked them to provide underlying arguments behind their attitudes. Only half of the manipulations were corrected by the participants. To measure lasting attitude change, we asked the participants to rate the same issues again later in the experiment, as well as one week after the first session. Participants in both conditions exhibited lasting shifts in attitudes, but the effect was considerably larger in the group that confabulated supporting arguments. We fully replicated these findings in Experiment 2 (N = 232). In addition, we found that participants' analytical skill correlated with their correction of the manipulation, whereas political involvement did not. This study contributes to the understanding of how confabulatory reasoning and self-perceptive processes can interact in lasting attitude change. It also highlights how political expressions can be both stable in the context of everyday life, yet flexible when argumentative processes are engaged.

The increased use of financial contracts to manage household risk is associated with a decline in religious adherence & smaller church congregations, a cost-benefit analysis leads households to replace their participation in social networks with lower-cost financial contracts

Cronqvist, Henrik and Warachka, Mitch and Yu, Frank, Does Finance Make Us Less Social? (July 2018). http://dx.doi.org/10.2139/ssrn.3229344

Abstract: Formal financial contracts and informal risk-sharing agreements within social networks both enable households to manage risk. Using an exogenous reduction in the cost of financial contracting, we find that the increased use of financial contracts to manage household risk is associated with a decline in religious adherence and smaller church congregations. These results indicate that a cost-benefit analysis leads households to replace their participation in social networks with lower-cost financial contracts. Our study contributes toward understanding the implications of emerging technologies known collectively as FinTech that lower the cost of financial contracting.

Keywords: Household Risk Management, Social Networks, FinTech
JEL Classification: G02, G28

Voters face tradeoffs between self-interest and the common good; experiment participants are more likely to choose the policy that earns them more money, even when the policy is detrimental to the common good

Selfish and Cooperative Voting: Can the Majority Restrain Themselves? Bowen Cho, Scott Bokemper, Andrew W. Delton. Political Behavior, https://link.springer.com/article/10.1007/s11109-018-9495-z

Abstract: At every scale from small committees to national elections, voters face tradeoffs between self-interest and the common good. We report three experiments in which participants vote for policies with real payoffs at stake. We manipulate self-interest by randomly assigning participants to two groups in society with different policy payoffs. Participants in the majority group are confronted by a simple choice between a policy that is better for themselves or a policy that is best for society. Overall, we find a clear effect of self-interest: Participants are more likely to choose the policy that earns them more money, compared to participants in the other group, even when the policy is detrimental to the common good. Simultaneously, we observe considerable levels of cooperative voting among participants in the majority, ranging from 47% to 79% across different payoff regimes. Finally, participants were not more cooperative when voting compared to when they chose between the same policies with a lottery or leader institution, departing from the hypothesis that voting institutions promote cooperative motives. We discuss implications for multiple literatures about voting behavior.

Perceptions of scientific consensus do not predict later beliefs about the reality of climate change, but the inverse pathway was significant for liberals: personal beliefs about the reality of anthropogenic CC prospectively predicted subsequent estimates of consensus

Perceptions of scientific consensus do not predict later beliefs about the reality of climate change: A test of the gateway belief model using cross-lagged panel analysis. John Richard Kerr, Marc Stewart Wilson. Journal of Environmental Psychology, https://doi.org/10.1016/j.jenvp.2018.08.012

Highlights
•    Study examined link between perceptions of scientific consensus and beliefs.
•    Variables captured at two time points in student sample.
•    Perceived consensus does not predict later personal climate beliefs.
•    Beliefs predict later perceived consensus for liberal, but not conservative, voters.

Abstract: The gateway belief model posits that perceptions of scientific agreement play a causal role in shaping beliefs about the existence of anthropogenic climate change. However, experimental support for the model is mixed. The current study takes a longitudinal approach, examining the causal relationships between perceived consensus and beliefs. Perceptions of scientific consensus and personal beliefs about climate change were collected over a five-month period in a student sample (N = 356). Cross-lagged panel analysis revealed that perceived scientific consensus did not prospectively predict personal agreement with the reality of climate change, thus the current study did not find support for the gateway belief model. However, the inverse pathway was significant for those with liberal voting intentions: personal beliefs about the reality of anthropogenic climate change prospectively predicted subsequent estimates of consensus. The results suggest that individuals’ perceptions of a consensus among scientists do not have a strong influence on their personal beliefs about climate change.

Why Milk Consumption is the Bigger Problem: Ethical Implications and Deaths per Calorie Created of Milk (and cheese!) Compared to Meat Production

Why Milk Consumption is the Bigger Problem: Ethical Implications and Deaths per Calorie Created of Milk Compared to Meat Production. Karin Kolbe. Journal of Agricultural and Environmental Ethics, August 2018, Volume 31, Issue 4, pp 467–481. https://link.springer.com/article/10.1007/s10806-018-9740-9

Abstract: Pictures of sides of beef, hanging from overhead rails in refrigerated warehouses and meat-processing plants, often leave a feeling of unease. These pictures provoke the notion that human beings have no right to inflict suffering and death on other sentient beings for the sole purpose of providing food. However, the ethical analysis conducted in this study shows that meat production, if animal welfare and deaths per calorie created are considered, is less of a pressing problem compared to the production of milk. While meat can be provided with minimal suffering to animals, the consumption of milk is always associated with considerable suffering during the dairy cow’s life-span and the lives of their offspring. Moreover, more bovine deaths per unit of calorific value created are associated with milk production compared to meat production. The vegan movement, which is currently growing, wishes to minimise farm animal suffering as much as possible. However, if a vegan diet is not possible, consumers should make an informed decision about the products they consume. Replacement of the calories obtained from meat with those from milk and dairy products is not rational if animal welfare is considered.

Spending time on social media, regardless of its purpose, relates to perceiving the United States as more politically polarized, which can help reduce polarization except in the group of those not using social media, those older than 75

Gollwitzer, Anton, Social Media Use Relates to Perceiving the United States as More Politically Polarized (March 9, 2018). http://dx.doi.org/10.2139/ssrn.3137325

Abstract: Much research has examined the role news media and social media play in political polarization. There has been less focus on whether and how social media influences people’s perception of political polarization in society. In one study (N = 328), we examined whether increased social media use relates to perceiving the United States political climate as more or less polarized. Time spent on social media (Facebook, Twitter, Instagram) related to perceiving politics as more polarized. This relationship remained when controlling for other variables such as age and political orientation. Of participants who reported using social media, whether they used it for socializing or information gathering did not relate to their level of perceived political polarization. We conclude that spending time on social media, regardless of its purpose, relates to perceiving the United States as more politically polarized. Possible mechanisms and implications of this relationship are discussed.

Keywords: perceived political polarization, social media, information gathering

Subjects are more willing to lie through a delegate than to lie directly

Lying Through Others: Does Delegation Promote Deception? Glynis Gawn RobertInnes. Journal of Economic Psychology, https://doi.org/10.1016/j.joep.2018.08.005

Highlights
•    Studies how delegation affects lie aversion.
•    Controls for other economic channels by which delegation can affect deception.
•    Presents classroom experiments involving black and white lies.
•    Finds that subjects are more willing to lie through a delegate than to lie directly.

Abstract: How do agency relationships affect an individual’s willingness to lie for monetary advantage? Does lie aversion decline if a lie (or truth) is sent through an agent, rather than sent directly by the individual? In a recent paper, Erat (2013) shows that a significant proportion of his subjects prefer to delegate a deception decision. We present experiments designed to focus on one of several possible explanations for this intriguing behavior – that delegation reduces lie aversion. The experiments reveal that subjects are more willing to lie through a delegate than to lie directly despite controlling for potential effects of delegated decision-making on preferences over payoffs, probabilities of actions, and/or the desire to avoid taking a decision.

Men are more likely to offer financial correct answers & women are slightly more likely to offer incorrect ones but women are considerably more likely to say "don't know," losing the opportunity to hazard a guess

On the Gender Gap in Financial Knowledge: Decomposing the Effects of Don't Know and Incorrect Responses. Zibei Chen, James C. Garand. Social Science Quarterly, https://doi.org/10.1111/ssqu.12520

Objectives: Past studies have consistently shown that women have lower levels of financial knowledge than men, and hence there is a noticeable gender gap in financial knowledge. We reconsider the conventional measures of financial knowledge by disentangling don't know (DK) responses and incorrect answers and comparing the effect of these two disparate responses’ on the gender gap in financial knowledge.

Methods: Using data from the 2012 National Financial Capability Studies data set, we estimate a series of ordinary least squares regression and multinomial logit models of the gender gap in DK and incorrect responses.

Results: We find a strong gender gap in financial knowledge, but with a twist: (1) men are more likely to offer correct answers; (2) women are slightly more likely to offer incorrect answers; but (3) women are considerably more likely to provide DK responses. Hence women may exhibit lower levels of financial knowledge because they lose the opportunity to hazard a guess and arrive at a correct answer based either on partial knowledge or on random chance. We consider the possibility that there are psychological processes at work involving risk acceptance and confidence in financial knowledge that prompt women to give DK responses at a rate higher than men.

Conclusion: We suggest that future research should consider the relative roles of DK and incorrect responses in measuring financial knowledge.

Traditions refer to ‘the virtuous person,’ implying that a class of individuals exists who have achieved a virtuous state; there is little evidence for class structure, & there is support for thinking of virtue as something we must pursue rather than a state that we achieve

Are there virtuous types? Finite mixture modeling of the VIA Inventory of Strengths. Dawn M. Berger & Robert E. McGrath. The Journal of Positive Psychology, https://doi.org/10.1080/17439760.2018.1510021

ABSTRACT: Philosophical and religious traditions often refer to ‘the virtuous person.’ This terminology usually carries with it the assumption that a class of individuals exists who have achieved a virtuous state. This study attempted to test that implication. The VIA Inventory of Strengths (VIA-IS) is intended as a comprehensive assessment of character strengths, which are conceptualized as markers of virtuous character. One prior study using taxometric methods found no evidence for the existence of such a category of individuals using VIA-IS scores. Subsequent literature has suggested the superiority of finite mixture modeling for identifying categorical structure. Latent profile analyses of 1–10 classes were conducted in a stratified sample of 10,000 adults. The results provided little evidence for class structure, and support thinking of virtue as something we must continuously pursue rather than a state that we achieve.

KEYWORDS: Character strengths, virtue, latent profile analysis (LPA), finite mixture modeling (FMM)

Economic well-being in rural India is clearly increasing across castes; the highest castes are happier than the others; the happiness pattern across the low & middle castes is flat or even downward sloping, which we attribute to the dynamics of downward & upward comparisons

The relationship between status and happiness: Evidence from the caste system in rural India. Bert Van Landeghem, Anneleen Vandeplas. Journal of Behavioral and Experimental Economics, https://doi.org/10.1016/j.socec.2018.08.006

Highlights
•    In both regions under study, we find that economic well-being in rural India is clearly increasing across castes.
•    We also find that the highest castes are happier than the lower and middle castes.
•    The happiness pattern across the low and middle castes is either flat or even downward sloping, which we attribute to the dynamics of downward and upward comparisons.

Abstract: A large number of empirical studies have investigated the link between social status and happiness; however, in observational data, identification challenges remain severe. This study exploits the fact that, in India, people are assigned a caste from birth. Two similar surveys of household heads (each with N=1000) in rural Punjab and Andhra Pradesh show an increasing pattern of economic welfare with caste hierarchy. This illustrates that, in the rural regions under study, one’s caste is still an important determinant of opportunities in life. Subsequently, we find that the castes at the top are clearly more satisfied than the lower and middle castes. This result, which is in line with the predictions of all major social comparison theories, is robust across the two case studies. The pattern across low and middle castes, however, is less clear, reflecting the complex theoretical relationship between being of middle rank, on the one hand, and behaviour, aspirations, and well-being, on the other hand. In the Punjab sample, we even find a significant U-shaped pattern, with the middle castes being the least happy. Interestingly, these patterns resemble those found for Olympic medallists (first documented by Medvec et al., 1995).

Autodidactism: We are likelier to grow cranky and conspiracy-minded, mistaking brainstorms for insight while rediscovering what the rest of the world already know

'We Can Read Without Learning at All'.“  Patrick Kurp. Sunday Aug 26 2018.
evidenceanecdotal.blogspot.com/2018/08/we-can-read-without-learning-at-all.html
What we mean by ‘education,’ that strange word, still has mostly to do with books, books we possess, keep.”

[...]

The obvious risk involved in adhering strictly to autodidacticism is waywardness. We require the friction of other minds to buff away self-generated roughness. Few of us can polish ourselves. We are likelier to grow cranky and conspiracy-minded, mistaking brainstorms for insight while rediscovering what the rest of the world already knows. Had I read only the books assigned in class, I would today be only nominally literate. Had I read only the books that confirmed the thoughts I already possessed, I would remain marginally illiterate.

[...]

Fr. Schall reminds us of the thrills and risks of self-education: “We can read without learning at all. We can have read only one book, the Bible or Shakespeare, but read it well. We can read many things, none of which move our souls to attend to what is.”

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The Autodidact Project, by Ralph Dumain: www.autodidactproject.org

Children reproduced outcomes that were positively valued by the experimenter significantly more when he was attentive but were more likely to reproduce negatively valued outcomes when he was inattentive

Botto, Sara Valencia, & Rochat, Philippe. (2018). Sensitivity to the evaluation of others emerges by 24 months. Developmental Psychology, 54(9), 1723-1734. http://dx.doi.org/10.1037/dev0000548

Abstract: Although the human proclivity to engage in impression management and care for reputation is ubiquitous, the question of its developmental outset remains open. In 4 studies, we demonstrate that the sensitivity to the evaluation of others (i.e., evaluative audience perception) is manifest by 24 months. In a first study, 14- to 24-month-old children (N = 49) were tested in situations in which the attention of an audience was systematically manipulated. Results showed that when the experimenter was inattentive, as opposed to attentive, children were more likely to explore an attractive toy. A second study (N = 31) explored whether same-aged children would consider not only the attention of the experimenter but also the values the experimenter expressed for two different outcomes when exploring a toy. We found that children reproduced outcomes that were positively valued by the experimenter significantly more when the experimenter was attentive but were more likely to reproduce negatively valued outcomes when the experimenter was inattentive. A third control study (N = 30) showed that the significant effect of Study 2 disappeared in the absence of different values. Lastly, Study 4 (N = 34) replicated and extended the phenomenon by showing toddler’s propensity to modify their behavior in the presence of 2 different experimenters, depending on both the experimenter’s evaluation of an outcome and their attention. Overall, these data provide the first convergent demonstration of evaluative audience perception in young children that precedes the full-fledged normative, mentalizing, and strong conformity psychology documented in 4- to 5-year-old children.

People reported as less likable, relatable, appealing, and more troublesome female Dark Triad characters, than non-Dark Triad & male characters; Non-Dark Triad males were viewed as more troublesome than non-Dark Triad females

Snyder, G. K., Smith, C. V., Øverup, C. S., Paul, A. L., & Davis, T. M. (2018). Characters we love to hate: Perceptions of dark triad characters in media. Psychology of Popular Media Culture, http://dx.doi.org/10.1037/ppm0000200

Abstract: Although the Dark Triad personality (narcissism, psychopathy, and Machiavellianism) has extensive background research, there has been a lack of investigation into perceptions of people high in the Dark Triad. Using film trailers with prominent Dark Triad characters, the current research examined perceptions of characters in movies and TV shows based on their Dark Triad characteristics and their gender. Undergraduate students (pilot study N = 21; present study N = 86) watched theatrical trailers originally released by the production companies before they rated 2 key characters’ Dark Triad traits with the Dirty Dozen (Jonason & Webster, 2010). Analyses revealed significant interactions such that people reported less positive perceptions (e.g., less likable, relatable, appealing, and more troublesome) of female Dark Triad characters, as opposed to non-Dark Triad characters and male characters. Non-Dark Triad male characters were viewed as more troublesome than non-Dark Triad female characters, and female Dark Triad characters were viewed as the most troublesome. Possible extensions could explore the prevalence and popularity of Dark Triad-type characters in the media and how genders in media have changed over time.

Young women taking and posting “selfies” online: Posting selfies on social media resulted in worsened mood and body image; even posting retouched selfies resulted in harmful effects

“Selfie” harm: Effects on mood and body image in young women. Jennifer S. Mills et al. Body Image, Volume 27, December 2018, Pages 86-92. https://doi.org/10.1016/j.bodyim.2018.08.007

Highlights
•    We examined the behaviour of taking and posting “selfies” online.
•    The current study used an experimental design.
•    Posting selfies on social media resulted in worsened mood and body image.
•    Even posting retouched selfies resulted in harmful effects.

Abstract: “Selfies” (self-taken photos) are a common self-presentation strategy on social media. This study experimentally tested whether taking and posting selfies, with and without photo-retouching, elicits changes to mood and body image among young women. Female undergraduate students (N = 110) were randomly assigned to one of three experimental conditions: taking and uploading either an untouched selfie, taking and posting a preferred and retouched selfie to social media, or a control group. State mood and body image were measured pre- and post-manipulation. As predicted, there was a main effect of experimental condition on changes to mood and feelings of physical attractiveness. Women who took and posted selfies to social media reported feeling more anxious, less confident, and less physically attractive afterwards compared to those in the control group. Harmful effects of selfies were found even when participants could retake and retouch their selfies. This is the first experimental study showing that taking and posting selfies on social media causes adverse psychological effects for women.

Adopting a Stigmatized Label: Social Determinants of Identifying as an Atheist beyond Disbelief

Adopting a Stigmatized Label: Social Determinants of Identifying as an Atheist beyond Disbelief. Christopher P Scheitle, Katie E Corcoran, Erin B Hudnall. Social Forces, Social Forces, soy084, https://doi.org/10.1093/sf/soy084

Abstract: An individual’s identity may not appear to correspond to his or her beliefs and behaviors. Such incongruence may be particularly likely when an identity is stigmatized. We examine this dynamic in the context of atheists. Being an atheist has often been equated with stating a disbelief in God, but this ignores the distinct phenomenon of identifying as an atheist. This study asks what influences the likelihood that an individual will identify as an atheist beyond saying that he or she does not believe in God. Drawing upon research examining the social dynamics of stigma and identity, we hypothesize that having close friends who are atheists will support an individual’s own adoption of the atheist label. On the other hand, we hypothesize that the presence of other stigmatized or at least competing identities, beliefs, and behaviors will serve as a barrier to an individual’s adoption of the atheist label. These expectations are largely supported in an analysis of unique survey data offering separate measures of atheist self-identification and belief in God. This study provides a framework for future research to examine these dynamics in the context of other identities, particularly those that are stigmatized.

Old, from 2017: Hallmarks of Alzheimer’s Disease in Stem-Cell-Derived Human Neurons Transplanted into Mouse Brain

Old, from 2017: Hallmarks of Alzheimer’s Disease in Stem-Cell-Derived Human Neurons Transplanted into Mouse Brain. Ira Espuny-Camacho et al. Neuron, Volume 93, ISSUE 5, P1066-1081.e8 DOI:https://doi.org/10.1016/j.neuron.2017.02.001

Highlights
    Human-mouse chimeric model of Alzheimer’s disease
    PSC-derived human neurons grafted into an AD mouse
    Major degeneration and loss of human neurons in chimeric AD mice
    Absence of tangle pathology in degenerating human neurons in vivo

Summary: Human pluripotent stem cells (PSCs) provide a unique entry to study species-specific aspects of human disorders such as Alzheimer’s disease (AD). However, in vitro culture of neurons deprives them of their natural environment. Here we transplanted human PSC-derived cortical neuronal precursors into the brain of a murine AD model. Human neurons differentiate and integrate into the brain, express 3R/4R Tau splice forms, show abnormal phosphorylation and conformational Tau changes, and undergo neurodegeneration. Remarkably, cell death was dissociated from tangle formation in this natural 3D model of AD. Using genome-wide expression analysis, we observed upregulation of genes involved in myelination and downregulation of genes related to memory and cognition, synaptic transmission, and neuron projection. This novel chimeric model for AD displays human-specific pathological features and allows the analysis of different genetic backgrounds and mutations during the course of the disease.

Until more compelling evidence emerges, however, a propensity to imitate from birth should no longer be considered an established phenomenon

Re-evaluating the neonatal imitation hypothesis. Janine Oostenbroek et al. Developmental Science, DOI: 10.1111/desc.12720

We appreciate Meltzoff et al.’s (2017) detailed commentary on our study of neonatal imitation (Oostenbroek et al., 2016) and the opportunity to clarify critical aspects of the findings. First, however, we wish to highlight that our data were collected as part of a larger longitudinal investigation, in which we set out to examine potential relations between neonatal imitation and later emerging aspects of social cognition (Suddendorf, Oostenbroek, Nielsen, & Slaughter, 2013). Our aim was not to test the veracity of the phenomenon of neonatal imitation, but to assess whether early individual differences predict later imitative and other socio-cognitive capacities, which would support the view of neonatal imitation as the foundation of social cognition (Meltzoff, 2002). When coding was finalized, it became clear that, to our surprise, the data challenged the very existence of the phenomenon whose trajectory and consequences we sought to chart.

Meltzoff et al. (2017) claim that methodological problems biased our results towards null effects. We assert that there is no compelling reason to think that any of these critiques undermine our challenge to the field. For instance, they argue that too many stimuli were used in a within-subjects design, which may have led to neonatal fatigue and disengagement. If that were the case, however, then initial trials should have elicited imitation but not later ones. We found no such order effects in any of our analyses (see Supplementary Material in Oostenbroek et al., 2016). Meltzoff et al. rightly note that infants cannot be expected to imitate behaviors that they are incapable of producing. Our data show, however, that with the exception of the ‘eee’ vocalizations and sad faces, infants produced all target behaviors either occasionally or regularly. [...]

The literature on neonatal imitation has a long history of post-hoc theorizing. In response to early failures to replicate the effect, for example, it was stipulated that neonates should be unfamiliar with the model’s face to maintain interest during the experiment (Meltzoff & Moore, 1983a). Later, however, it was argued that infants imitate familiar faces to communicate recognition (Meltzoff, 2005; Meltzoff & Moore, 1994), and that ‘imitation is not modified by which person serves as the model’ (Meltzoff & Moore, 1992, p. 492). Now, Meltzoff et al. again argue that the model should be unfamiliar, even suggesting that this is the ‘key’ to eliciting neonatal imitation. Setting aside the obvious contradictions here, it seems untenable to claim that the ‘engine and mechanism for the growth of social cognition’ (Meltzoff, 2002, p. 7) would manifest itself only with unfamiliar people.

Individuals with stronger social anxiety perceive their environment as hierarchically organized & their own position relatively low; positive evaluations might mean problems, so a goal could be protection by avoiding making “too good” of an impression

Malaise with praise: A narrative review of 10 years of research on the concept of Fear of Positive Evaluation in social anxiety. Julia Reichenberger, Jens Blechert. Depression and Anxiety, https://doi.org/10.1002/da.22808

Abstract: Social anxiety is characterized by a fear of being negatively evaluated by others (i.e., Fear of Negative Evaluation [FNE]). In 2008, Weeks, Heimberg, and Rodebaugh proposed Fear of Positive Evaluation (FPE) as a second cognitive component in social anxiety. The article presents an overview of FPE, its psycho‐evolutionary theoretical foundation and assessment by the Fear of Positive Evaluation Scale as well as relevant psychometric research on demographic characteristics. The relationship of FPE with a wide range of established dimensions from clinical, personality, and social psychology (i.e., self‐esteem, perfectionism, or quality of life) will be reviewed. The role of FPE for psychological comorbidities such as other anxiety disorders, depression, eating, and substance use disorders as well as for treatment of social anxiety will be discussed. Future research might address questions of causality of FPE relative to related constructs, further data on psychometric properties, as well as on its independence from FNE in longitudinal studies. In sum, FPE seems to be a valid and reliable construct that explains cognitions, emotions, and behavior related to social anxiety at subclinical and clinical levels and therefore enriches the psychometric repertoire in the fields of social psychology, personality, and clinical psychology.


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A theoretical framework for FPE stems from the psycho-evolutionary model of social anxiety by Gilbert (2001, 2014) and was adapted by Weeks et al. (2008a). Accordingly, individuals with stronger social anxiety perceive their environment as hierarchically organized, and see their own position in the hierarchy as relatively low. Their ultimate goal is supposedly a stable, intermediate position and an avoidance of upward or downward shifts in the social hierarchy. This “inconspicuous” intermediate position is the result of two “regulatory forces”, FNE and FPE (see Figure 1). Specifically, the upward movements in the social hierarchy, implied in positive evaluation, might attract the group's attention, prompting higher-ranking group members to compete and challenge this new “rising star.” Hence, the goal of FPE could be protection from this threat by avoiding making “too good” of an impression, thereby avoiding an upward shift in social hierarchy.

Pink for Girls, Red for Boys, and Blue for Both Genders: Colour Preferences in Children and Adults

Pink for Girls, Red for Boys, and Blue for Both Genders: Colour Preferences in Children and Adults, Domicele Jonauskaite et al. Sex Roles, https://link.springer.com/article/10.1007/s11199-018-0955-z

Abstract: Colours carry social connotations like pink for girls and blue for boys. In a cross-sectional study, we investigated whether such early gender coding might be reflected in absolute colour preferences in children and adults of both genders. In two studies, participants selected their favourite (and least favourite, Study 2) colour from an unrestricted sample of colours. We tested 129 Swiss children (Study 1, 10–14 years-old, 68 boys) and 180 Swiss adults (Study 2, 17–48 years-old, 88 men). In children, we observed that girls chose pink/purple as their favourite hue more often than boys did, the most common favourite hue in girls and boys was blue, and boys chose red as their favourite more often than girls did. In adults, we observed that both genders almost never choose pink as their favourite, blue was a common favourite colour, and women were more likely to favour red than were men. In an additional study (n = 183 Swiss participants, 47 men), we tested whether liking of pink, blue, and red was related to emotion associations with these colours. Pink was associated with positive emotions to the same extent as blue and red. Women further associated more positive emotions with pink than did men. We conclude that some commonalities (blue) and gender differences (pink and red) exist in absolute colour preferences. These differences, however, cannot be fully accounted by emotional associations. We speculate about these gendered colour preferences in relation to gender stereotypes and status differences between men and women.

American adolescents positive trends in four areas: substance use, unprotected sex, crime, & hazardous driving; possible causes are the effects of public policies, closer parent–child relationships, & the social consequences of electronic media use

Arnett, J. J. (2018). Getting better all the time: Trends in risk behavior among American adolescents since 1990. Archives of Scientific Psychology, 6(1), 87-95. http://dx.doi.org/10.1037/arc0000046

Abstract: Contrary to the negative narrative in psychology and in the American public, many trends in the risk behaviors of American adolescents have been positive in recent decades. Evidence is presented for positive trends in four areas: substance use, unprotected sex, crime, and hazardous automobile driving. A comparison of American adolescents to older Americans and to adolescents in other developed countries indicates that the pattern of positive trends is distinct to young Americans and does not apply consistently across age groups and countries. Three explanations for the positive trends are considered: the effects of public policies, closer parent–child relationships, and the social consequences of electronic media use. The most promising hypothesis is that a rise in electronic media use led to a decline in unstructured socializing, which led in turn to lower risk behavior.

Impact Statement: Contrary to the negative narrative in psychology and in the American public, many trends in the risk behaviors of American adolescents have been positive in recent decades. Evidence is presented for positive trends in four areas: substance use, unprotected sex, crime, and hazardous automobile driving. A comparison of American adolescents to older Americans and to adolescents in other developed countries indicates that the pattern of positive trends is distinct to young Americans and does not apply consistently across age groups and countries. Three explanations for the positive trends are considered: the effects of public policies, closer parent–child relationships, and the social consequences of electronic media use. The most promising hypothesis is that a rise in electronic media use led to a decline in unstructured socializing, which led in turn to lower risk behavior.

Milgram replication: In conditions where the participants were not given money up front it was necessary to employ more verbal prompts in order to induce obedience

The (doubtful) role of financial reward in obedience to authority. Dariusz Dolinski & Tomasz Grzyb. The Journal of Social Psychology, https://doi.org/10.1080/00224545.2018.1505708

ABSTRACT: The Milgram experiments are among the most well-known and important in the history of psychology. Since first published, there have been countless discussions held on the subject of what factors induce people to exhibit extreme obedience towards authority. One such potential factor, not yet explored empirically, is the receipt in advance of financial gratification by a study participant. In our experiment we compare obedience among participants in classic Milgram paradigm conditions with obedience in a situation where the participant does not receive financial gratification in advance. The results did not show that obedience differed in the two comparable situations. In conditions where the participants were not given money up front, however, it was necessary to employ more verbal prompts in order to induce obedience.

Keywords: Obedience, financial gratification, reciprocity

Women are usually somewhat earlier chronotypes, who go to bed earlier, fall asleep earlier, and then get up a little earlier; this difference arises with puberty and ends with menopause, from which a reproductive function can be interpreted

The chronotype in relationships and sexual behavior - a first overview (automatic translation of Der Chronotyp in Beziehungen und Sexualverhalten – eine erste Übersicht). Christoph Randler. Somnologie, https://link.springer.com/article/10.1007/s11818-018-0176-2

Abstract: A late chronotype (owls) is someone who tends to go to bed late, so he or she will get up later. In contrast, morning types (larks) get up earlier and go to bed earlier. Men and women differ in their chronotype. Women are usually somewhat earlier chronotypes, who go to bed earlier, fall asleep earlier, and then get up a little earlier. Interestingly, this difference arises with puberty and ends with menopause, from which a reproductive function can be interpreted. From an evolutionary Darwinian perspective, this is a sexual dimorphism that can be explained by sexual selection. Various studies have indeed shown that men of the evening type reported more sexual partners, in Italy, Sri Lanka and Germany. Furthermore, studies show that assortative behaviour takes place when choosing a partner, i. e. there are more couples whose partners are similar the chronotype. However, there are still many open questions related to this topic.

On the positive association between candy and fruit gum consumption and hyperactivity in children and adolescents with ADHD

On the positive association between candy and fruit gum consumption and hyperactivity in children and adolescents with ADHD. Nicole Wolff et al. Zeitschrift für Kinder- und Jugendpsychiatrie und Psychotherapie. https://doi.org/10.1024/1422-4917/a000609

Abstract

Objective: The purpose of the present study was the analysis of the association between consumption of candy and fruit gums, diagnosis of attention deficit hyperactivity disorder (ADHD), and behavioural problems.

Methods: In total, 1,187 children and adolescents of the German Health Interview and Examination Survey for Children and Adolescents (KiGGS) were analyzed. Results: It was observed that children and adolescents with ADHD as compared to healthy controls (HC) reported to consume more frequently and higher amounts of candy and fruit gums and that hyperactivity was associated with frequent candy and fruit gum consumption.

Conclusions: Because with the present design no conclusions on causality or directionality of the found associations could be drawn, results are discussed quite broadly in the light of several previously published interpretations, also to serve as a generator for further research. One more innovative speculation is that children and adolescents with ADHD may consume more frequently candy and fruit gums in order i) to compensate for their higher needs of energy resulting from hyperactive behaviour and/or ii) to compensate for the ADHD-typical deficits in the “reward cascade”.

Keywords: ADHD, nutrition, hyperactivity, children, adolescents