Time spent with friends is worth less for those who use the smartphone

Connecting Alone: Smartphone Use, Quality of Social Interactions and Well-being. Valentina Rotondi, Luca Stanca, and Miriam Tomasuolo. Journal of Economic Psychology, https://doi.org/10.1016/j.joep.2017.09.001

Highlights
•    We study the effect of the smartphone on the quality of social interactions.
•    We argue that the smartphone reduces the quality of face-to-face interactions.
•    We test this hypothesis in a large sample of Italian individuals.
•    We find that time spent with friends is worth less for those who use the smartphone.
•    This finding holds in terms of both life satisfaction and satisfaction with friends.

Abstract: This paper investigates the role played by the smartphone for the quality of social interactions and subjective well-being. We argue that, due to its intrusiveness, the smartphone reduces the quality of face-to-face interactions and, as a consequence, their positive impact on well-being. We test this hypothesis in a large and representative sample of Italian individuals. The results indicate that time spent with friends is worth less, in terms of life satisfaction, for individuals who use the smartphone. This finding is robust to the use of instrumental variables estimation to deal with possible endogeneity. We also show that, consistent with our hypothesis, the positive association between time spent with friends and satisfaction with friends is less strong for individuals who use the smartphone.

Keywords: Smartphone; Social interactions; Subjective well-being

JEL classification: A12; I31; O33

Mind the Hype: A Critical Evaluation and Prescriptive Agenda for Research on Mindfulness and Meditation

Mind the Hype: A Critical Evaluation and Prescriptive Agenda for Research on Mindfulness and Meditation. Nicholas T. van Dam et al. Perspectives on Psychological Science, https://doi.org/10.1177/1745691617709589

Abstract: During the past two decades, mindfulness meditation has gone from being a fringe topic of scientific investigation to being an occasional replacement for psychotherapy, tool of corporate well-being, widely implemented educational practice, and “key to building more resilient soldiers.” Yet the mindfulness movement and empirical evidence supporting it have not gone without criticism. Misinformation and poor methodology associated with past studies of mindfulness may lead public consumers to be harmed, misled, and disappointed. Addressing such concerns, the present article discusses the difficulties of defining mindfulness, delineates the proper scope of research into mindfulness practices, and explicates crucial methodological issues for interpreting results from investigations of mindfulness. For doing so, the authors draw on their diverse areas of expertise to review the present state of mindfulness research, comprehensively summarizing what we do and do not know, while providing a prescriptive agenda for contemplative science, with a particular focus on assessment, mindfulness training, possible adverse effects, and intersection with brain imaging. Our goals are to inform interested scientists, the news media, and the public, to minimize harm, curb poor research practices, and staunch the flow of misinformation about the benefits, costs, and future prospects of mindfulness meditation.

Keywords mindfulness, meditation, psychotherapy, neuroimaging, contemplative science, adverse effects, media hype, misinformation

Check also: A randomized controlled evaluation of a secondary school mindfulness program for early adolescents: Do we have the recipe right yet? Catherine Johnson et al. Behaviour Research and Therapy, https://doi.org/10.1016/j.brat.2017.09.001

And: The Pervasive Problem With Placebos in Psychology - Why Active Control Groups Are Not Sufficient to Rule Out Placebo Effects. Walter R. Boot et al. Perspectives on Psychological Science, Volume: 8 issue: 4, page(s): 445-454, https://doi.org/10.1177/1745691613491271

Genetic and Environmental Pathways Underlying Personality Traits and Perceived Stress: Twin Studies

Luo, J., Derringer, J., Briley, D. A., and Roberts, B. W. (2017) Genetic and Environmental Pathways Underlying Personality Traits and Perceived Stress: Concurrent and Longitudinal Twin Studies. Eur. J. Pers., doi: 10.1002/per.2127

Abstract: The present study examined the genetic and environmental etiology underlying the Big Five personality traits and perceived stress, concurrently and longitudinally. In study 1, we used the twin sample from the National Longitudinal Study of Adolescent to Adult Health (Add Health IV) data. The results indicated that about 70% of the association between the Big Five personality traits and perceived stress was due to genetic influences. In study 2, we used the twin sample from the Midlife in the United States Survey (MIDUS I and II) to examine the genetic and environmental influences underlying the longitudinal relations between the Big Five personality traits and perceived stress. The results suggested that continuity in perceived stress was primarily accounted for by genetic influences, and changes in perceived stress were mainly due to nonshared environmental influences. The continuity in the association between the five personality traits and perceived stress was largely accounted for by genetic factors, and nonshared environmental factors made greater contributions to changes in the association between personality traits and perceived stress. Among the Big Five personality traits, the genetic components in conscientiousness and neuroticism made substantial contributions to the genetic link between personality traits and perceived stress across both studies.

Digital Goods Are Valued Less Than Physical Goods

Ozgun Atasoy, Carey K Morewedge; Digital Goods Are Valued Less Than Physical Goods, Journal of Consumer Research, , ucx102, https://doi.org/10.1093/jcr/ucx102

Abstract: Digital goods are, in many cases, substantive innovations relative to their physical counterparts. Yet, in five experiments, people ascribed less value to digital than to physical versions of the same good. Research participants paid more for, were willing to pay more for, and were more likely to purchase physical goods than equivalent digital goods, including souvenir photographs, books (fiction and nonfiction), and films. Participants valued physical goods more than digital goods whether their value was elicited in an incentive compatible pay-what-you-want paradigm, with willingness to pay, or purchase intention. Greater capacity for physical than digital goods to garner an association with the self (i.e., psychological ownership), underlies the greater value ascribed to physical goods. Differences in psychological ownership for physical and digital goods mediated the difference in their value. Experimentally manipulating antecedents and consequents of psychological ownership (i.e., expected ownership, identity-relevance, perceived control) bounded this effect, and moderated the mediating role of psychological ownership. The findings show how features of objects influence their capacity to garner psychological ownership before they are acquired, and provide theoretical and practical insights for the marketing, psychology, and economics of digital and physical goods.

Keywords: digital goods, value, psychological ownership, perceived control

Self-handicapping during play fighting in capuchin monkeys

Self-handicapping during play fighting in capuchin monkeys (Cebus apella). Meredith C. Lutz and Peter G. Judge. Behaviour, DOI: 10.1163/1568539X-00003449

Abstract: Play may serve several potential functions, including learning to overcome unexpected circumstances. Self-handicapping, during which individuals do not utilize their full strength, is proposed to provide training for the unexpected. If self-handicapping occurs, then play fight intensity should decrease as partner age discrepancy increases. By playing with reduced intensity, the older partner self-handicaps, exposing itself to situations that it does not fully control. Self-handicapping was investigated in a captive group of brown capuchin monkeys (Cebus apella) by recording the duration and sequence of play during focal samples. All instances of play fighting were scored from video for intensity. As the age difference between the partners increased, the intensity of play bouts decreased. Since partners with larger age disparities played less intensely, results provided quantitative evidence for self-handicapping, although additional factors may affect play intensity. We suggest that self-handicapping encourages play and provides support for the training for the unexpected hypothesis.

The challenge of starting and keeping a relationship: Prevalence rates and predictors of poor mating performance

The challenge of starting and keeping a relationship: Prevalence rates and predictors of poor mating performance. Menelaos Apostolou, Marios Shialos, Elli Kyrou, Artemis Demetriou, Anthi Papamichael. Personality and Individual Differences, Volume 122, February 1 2018, Pages 19–28. https://doi.org/10.1016/j.paid.2017.10.004

Highlights
•    Estimates the prevalence rates of poor mating performance
•    Finds that about one in two adults face difficulties in intimate relationships
•    Explores the factors that predict poor mating performance
•    Identifies the evolutionary causes of poor mating performance

Abstract: There are reasons to believe that the mechanisms involved in mating, evolved in a context where marriages were arranged and male-male competition was strong. Thus, they may not work well in a post-industrial context, where mating is not regulated and where male-male competition is weak. As a consequence of the mismatch between ancestral and modern conditions, several individuals may face difficulties in the domain of mating. This study aimed to estimate the prevalence rates of poor mating performance and to identify some of its predictors. In particular, evidence from 1894 Greek and Greek-Cypriot participants from three independent studies, indicated that about one in five individuals found intimate relationships difficult, about one in two experienced difficulties in either starting or keeping a relationship, and about one in five experienced difficulties in both starting and keeping a relationship. Moreover, it was found that sexual functioning, self-esteem, self-perceived mate value, choosiness, personality, attention to looks, and mating effort were significant predictors of poor mating performance. It was also found that men and women closely overlapped in their mating performance, while age did not predict how well people do in the domain of mating.

Keywords: Mating performance; Mismatch problem; Mate choice; Parental choice; Mating

Parental Mate Choice Manipulation Tactics: Exploring Prevalence, Sex and Personality Effects. Menelaos Apostolou, Ioulia Papageorgi. Evolutionary Psychology, Jul 2014, https://doi.org/10.1177/147470491401200307

Abstract: Parents and children are genetically related but not genetically identical, which means that their genetic interests overlap but also diverge. In the area of mating, this translates into children making mate choices that are not in the best interest of their parents. Parents may then resort to manipulation in order to influence their children's mating decisions in a way that best promotes the former's interests. This paper attempts to identify the structure of manipulation tactics that parents employ on their daughters and sons, as well as on their daughters' and sons' mates, and also to estimate their prevalence. On the basis of the structure of the derived tactics, four hypotheses are tested: Mothers are more willing than fathers to use manipulation tactics; parents are willing to use more manipulation on their daughters than on their sons; the personality of parents predicts the use of tactics on their children and on their children's mates; and the personality of children and of children's mates predicts the use of tactics on them. Evidence from two independent studies provides support for the first three hypotheses, but mixed support for the fourth hypothesis. The implications of these findings are further discussed.

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Finally, the age of parents was negatively related to their willingness to apply manipulation on their children and their children’s mates.

One possible explanation for the latter finding is that the residual reproductive value of younger parents is higher than the residual reproductive value of older parents. In other words, parents have more reproductive years ahead of them when they are younger than when they are older. In a pre-industrial context, and most probably during ancestral times, parents would control their children’s mate choices so as to arrange beneficial marriage alliances, and they could divert this cost in their own reproductive effort (Apostolou, 2014). For instance, a father could use the bridewealth he received from the marriage of his daughter to get an additional wife for himself, while a mother could use the resources derived from a beneficial alliance to mother additional children. However, these reproductive benefits are exhausted with age, which means that older parents have less to gain from controlling their children. As a consequence, there will be less intense selection pressures exercised on older parents to control mating, which in turn may result in older parents being less interested in using manipulation to influence their children’s mate choice.

Stupid human rights activists look to the other side when you pay lip service to them

Join the Chorus, Avoid the Spotlight: The Effect of Neighborhood and Social Dynamics on Human Rights Organization Shaming. Sam Bell, Chad Clay and Amanda Murdie. Journal of Conflict Resolution, https://doi.org/10.1177/0022002717727829

Abstract: Which countries are likely to be ignored for their human rights abuses? This article focuses on one particular way that cases of human rights abuse might be overlooked by human rights organizations (HROs): the relative visibility of the state’s abusiveness vis-à-vis its geographic and social peers. HROs are more likely to target abusive states that are located in regions with more HRO resources and/or are surrounded by states that demonstrate higher respect for human rights, as these abuses will stand out much more clearly. Further, human rights treaties can be used by abusive states as a form of strategic “social camouflage,” with states trying to minimize the risk of HRO attention by ratifying human rights treaties to look more like their rights-respecting peers. Using a cross-national time-series research design, this article finds much support for the argument: abusive states that “join the chorus” avoid HRO attention.


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I could have said this to you with no need to study the data. Anyone working in NGOs and reading the newspapers knows this.

Wandering thoughts about consciousness, the brain, and the commentary system of Larry Weiskrantz

Wandering thoughts about consciousness, the brain, and the commentary system of Larry Weiskrantz. Giovanni Berlucchi. Neuropsychologia, https://doi.org/10.1016/j.neuropsychologia.2017.10.011

Highlights
•    Importance of Weiskrantz's work for a neuroscientific understanding of consciousness
•    Subjective commentaries in parallel to behavior as markers of consciousness
•    Commentaries in animals as proofs of animal consciousness
•    Conscious human beings unable to provide verbal commentaries: the locked-in syndrome
•    The midpontine pretrigeminal cat as a possible animal model of the locked-in syndrome

Abstract: Larry Weiskrantz has always pursued a keen interest in consciousness in humans and other animals by performing clever experiments and proposing clever ideas. In this rather idiosyncratic essay I selectively review some old and new evidence on real and apparent losses of consciousness in humans, new means that allow the human brain to expose its conscious awareness directly, and experiments on animals that may bridge their consciousness with that of humans.

Keywords: human consciousness; animal consciousness; brainstem sections hippocampus; locked-in syndrome

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locked-in patients are not particularly distressed by their huge behavioral limitations [...] the emotional balance is shifted toward positive emotions

Does Performance Matter? Evaluating Political Selection Along the Chinese Administrative Ladder

Does Performance Matter? Evaluating Political Selection Along the Chinese Administrative Ladder. Pierre Landry, Xiaobo Lü and Haiyan Duan. Comparative Political Studies, http://dx.doi.org/10.2139/ssrn.2452482

Abstract: Political selection is central to the survival of all regimes. This article evaluates the relative importance of performance and political connection for the advancement of local politicians under authoritarianism. We hypothesize that in a large-scale multilevel polity, economic performance plays a greater role in promotion at lower administrative levels of government than at higher ones, even after controlling for political connections. This dualist strategy allows the ruling elites to achieve economic performance while minimizing the advancement of potentially disloyal challengers. Thus, balancing between loyalty and competence among subordinates enhances regime survival. Our empirical evidence draws on a comprehensive panel dataset of provincial, prefectural, and county-level Communist party secretaries and government executives appointed between 1999 and 2007. We find consistent evidence for our argument under various model specifications. We also explore the heterogeneous effects of performance on promotion given the Chinese Communist Party’s (CCP) age ineligibility rule for cadre promotion and jurisdiction characteristics.

Loyalty Can't Be Bought: Explaining Military Defection during Civilian Uprisings against Autocracies

Plana, Sara, Loyalty Can't Be Bought: Explaining Military Defection during Civilian Uprisings against Autocracies (August 17, 2017). MIT Political Science Department Research Paper No. 2017-20. https://ssrn.com/abstract=3020775

Abstract: Why do soldiers disobey orders to defend the regime against civilian protestors? Using a mixed-method approach with a time-series cross-sectional large-N analysis and cross- and within-case process-tracing, I test two competing logics: one that claims obedience follows from incentivizing loyalty and another that points to immaterial shared bonds. Contrary to the dominant stream in the literature, I provide evidence that a regime’s efforts to materially incentivize loyalty are not good predictors of whether soldiers will defend the regime in its hour of need. I argue that material incentives tend to be moot when soldiers are faced with the proximate decision of firing on civilians. Instead, other motivations come to the fore — specifically, whether soldiers are more strongly bonded to the society or to the military and which action would be the more socially costly as a result.

Keywords: Defection, Military, Uprising, Autocracies, Autocracy, Loyalty

Male aggressiveness as intrasexual contest competition in 78 societies

Carter T, Kushnick G. (2017) Male aggressiveness as intrasexual contest competition in 78 societies. PeerJ Preprints 5:e3331v1 https://doi.org/10.7287/peerj.preprints.3331v1

Abstract: Sexual selection favors traits that increase mating and, thus, reproductive success. Some scholars have suggested that intrasexual selection driven by contest competition has shaped human male aggression. If this is the case, one testable hypothesis is that beliefs and behavior related to male aggression should be more prevalent in societies where the intensity and strength of sexual selection is higher, as measured by factors such as: (a) the presence and scope of polygyny; (b) the number of same-sex competitors relative to potential mates; and, (c) the amount of effort males have available to allocate to mating. Using mixed-effect linear regression models with data from 78 societies from the Standard Cross-Cultural Sample, we found mixed support for the hypothesis using individual variables related to male aggression, but strong support when using a composite measure of male ‘aggressiveness’. We ruled out some potential alternative explanations by controlling for spatial autocorrelation, and confounding variables such as political complexity and warfare.

Childhood Amnesia in Children -- Emotion and contextual coherence predicted memory retention

Peterson, C., Hallett, D. and Compton-Gillingham, C. (2017), Childhood Amnesia in Children: A Prospective Study Across Eight Years. Child Dev. doi:10.1111/cdev.12972

Abstract: This was a prospective study of earliest memories across 8 years for 37 children who were of age 4–9 years initially. In three interviews (initial and after 2 and 8 years) children provided their three earliest memories; those from earlier interviews that were not spontaneously provided later were cued. There was little consistency in the earliest memory or overlap across interviews in spontaneous memories. The youngest group also forgot over half their initial memories although few were forgotten by older children. For consistency of content, 25%–32% of information by former 6- to 9-year-olds was the same after 8 years, but < 10% provided by the youngest children was the same and 22% was contradictory. Emotion and contextual coherence predicted memory retention.

Female exogamy and gene pool diversification at the transition from the Final Neolithic to the Early Bronze Age in central Europe

Female exogamy and gene pool diversification at the transition from the Final Neolithic to the Early Bronze Age in central Europe. Corina Knipper et al. Proceedings of the National Academy of Sciences, September 19, 2017, vol. 114 no. 38, pp 10083-10088. doi: 10.1073/pnas.1706355114

Significance: Paleogenetic and isotope data from human remains shed new light on residential rules revealing patrilocality and high female mobility in European prehistory. We show the crucial role of this institution and its impact on the transformation of population compositions over several hundred years. Evidence for an epoch-transgressing maternal relationship between two individuals demonstrates long-debated population continuity from the central European Neolithic to the Bronze Age. We demonstrate that a simple notion of “migration” cannot explain the complex human mobility of third millennium BCE societies in Eurasia. On the contrary, it appears that part of what archaeologists understand as migration is the result of large-scale institutionalized and possibly sex- and age-related individual mobility.

Abstract: Human mobility has been vigorously debated as a key factor for the spread of bronze technology and profound changes in burial practices as well as material culture in central Europe at the transition from the Neolithic to the Bronze Age. However, the relevance of individual residential changes and their importance among specific age and sex groups are still poorly understood. Here, we present ancient DNA analysis, stable isotope data of oxygen, and radiogenic isotope ratios of strontium for 84 radiocarbon-dated skeletons from seven archaeological sites of the Late Neolithic Bell Beaker Complex and the Early Bronze Age from the Lech River valley in southern Bavaria, Germany. Complete mitochondrial genomes documented a diversification of maternal lineages over time. The isotope ratios disclosed the majority of the females to be nonlocal, while this is the case for only a few males and subadults. Most nonlocal females arrived in the study area as adults, but we do not detect their offspring among the sampled individuals. The striking patterns of patrilocality and female exogamy prevailed over at least 800 y between about 2500 and 1700 BC. The persisting residential rules and even a direct kinship relation across the transition from the Neolithic to the Bronze Age add to the archaeological evidence of continuing traditions from the Bell Beaker Complex to the Early Bronze Age. The results also attest to female mobility as a driving force for regional and supraregional communication and exchange at the dawn of the European metal ages.

Keywords: mtDNA, strontium, oxygen, kinship, human mobility

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My commentary: The authors say: "Systematic individual movements are an important factor in third millennium BCE societies in Eurasia and force us to reexamine evidence of “migration” that may actually be the result of large-scale institutionalized and possibly sex- and age-related individual mobility."

I see at least two ways to have institutionalized women mobility: 1  buying the women from other tribes; or 2  the kidnapping of women from other human groups and their becoming forced wives or slaves (this is more difficult because the women are buried like the men, which is not likely that it will be done as frequently with slaves as with the male warriors/kidnappers).