Friday, November 30, 2018

The article thus challenges the general notion that ‘terrorism always ends’; only certain types of jihadists will end, while others—such as al-Qaida & Islamic State—may survive indefinitely

Jihadism after the ‘Caliphate’: towards a new typology. Anne Stenersen. British Journal of Middle Eastern Studies, https://doi.org/10.1080/13530194.2018.1552118

ABSTRACT: The rise of the Islamic State in Iraq and Syria, and its subsequent split with al-Qaida in 2014, revealed there is still much we do not know about jihadism. Existing typologies of Islamism describe jihadism as a unitary phenomenon, characterized by a preference for violence over other methods for political change. This article presents a more fine-grained typology of jihadism that captures the core divisionary issues within the jihadist current. It argues that jihadist groups can be classified along two scales: the ‘takfirism’ scale defines how the group relates to society, and it runs from integration at one end, to separation on the other. The ‘pan-Islamism’ scale defines what the group fights for, and it runs from ethnic homeland on one end to umma on the other. The main argument is that jihadist groups ensure their survival by shifting their position along the scales—either by becoming less takfiri or more pan-Islamist. The article thus challenges the general notion that ‘terrorism always ends’. Only certain types of jihadists will end, while others—such as al-Qaida and Islamic State—may survive indefinitely.

Is creativity, hands-on modeling and cognitive learning gender-dependent?

Is creativity, hands-on modeling and cognitive learning gender-dependent? Julia Mierdel, Franz X. Bogner. Thinking Skills and Creativity, Volume 31, March 2019, Pages 91-102. https://doi.org/10.1016/j.tsc.2018.11.001

Highlights
•    Combining hands-on modeling with experimentation is successful.
•    The model quality is not influenced by students’ individual creativity levels.
•    Girls produced significantly better structured DNA-models.
•    ‘Flow’ experiences and model quality are related with girls’ cognitive achievement.

Abstract: Modeling plays a key role in science research and education is considered to increase comprehensibility of abstract concepts and processes. Especially hands-on experiences in authentic learning environments offer students the opportunity to feel like real researchers and support the development of problem-based thinking skills. In our study, we applied an inquiry-based, out-of-school laboratory module that uses classic experimental challenges as well as innovative model-supported teaching to promote cognitive achievement. Our hands-on module was designed for 9th graders and combined experimentation and creative model work to visualize molecular and otherwise invisible contents of DNA-structure. After mental modeling, participants (N = 114; 40.87% female) produced a physical DNA-model using handcrafting materials. Our major aims were to evaluate the model qualities and to monitor potential relationships between successful model elaboration, individual creativity and knowledge levels. Therefore, we correlated students’ creativity levels with model quality scores as well as with cognitive achievement. While no relations were found for creativity and model elaboration further results were gender-dependent. Girls produced significantly higher model quality scores and significant positive correlations were revealed between short-term and mid-term knowledge levels. Correlations also were observed between girls’ cognitive achievement and the creativity subscale ‘flow’. In contrast, neither creativity nor model quality were decisive for boys cognitive achievement. Their average simpler modeling results did not correlate with the short-term and mid-term knowledge levels, although they achieved similar scores on both. Model elaboration seemingly provides more support for girls and offers a suitable approach for emphasizing creativity in science education. In attempting to attract girls to scientific ideas, creative modeling may further support hands-on experimentation.

Animated Disney female characters that exhibit low WHRs should be perceived as good; lower waist-to-hip ratio is more commonly associated with Disney princesses than Disney female villains

Aung, T., & Williams, L. (2018). Mirror, mirror on the wall: Whose figure is the fairest of them all? Evolutionary Behavioral Sciences, http://dx.doi.org/10.1037/ebs0000156

Abstract: Although the “what is beautiful is good” phenomenon has been examined in animated Disney movies, studies have not investigated what makes a particular Disney princess more beautiful than the others. In our study, we further investigated what makes a particular Disney female character (n = 20) beautiful by measuring and analyzing their waist-to-hip ratios (WHRs). From evolutionary perspectives, lower WHRs in women signal high reproductive potential, and are attractive to men and ideal for women. Thus, we expected that animated Disney female characters that exhibit low WHRs should be perceived as good. Our analyses suggest that lower WHR is more commonly associated with Disney princesses than Disney female villains. In addition, we found that WHRs of Disney princesses (Mdn = 0.50, range = 0.31–0.69) were less varied than those of the villains (Mdn = 0.66, range = 0.47–1.29), suggesting that the “what is beautiful is good” stereotype is strongly reflected in the smaller WHRs of Disney princesses.

Some articles on psychology of animals

The mating preferences of female fruitflies are strongly influenced by the existing preferences they observe in other females, generating traditions that are repeatedly passed on to others and spread in the population
 
The intense selection of chickens for production traits (egg laying) is thought to cause undesirable side effects & changes in behavior due to trade-offs from energy expenditure; contrary to expectations, productive hens show increased cognitive skills

Males reversed their initial preference for larger females in the presence of a conspecific audience male because they recognized the audience male as a competitor and tried to deceive that male about their real mating preference
 
A female fish that today doesn't need males to clone itself copulates with other species' males to stimulate embryonic development. Those males do that probably because the interactions of a sexual male and the female are observed by conspecific females and make that male more attractive
 
Sumatran orangutan mothers suppressed alarm calls up to 20 min until the model was out of sight in function of perceived danger for themselves & for an infant, suggesting high-order cognition
 
Chimpanzees appear to perceive similarity in primate faces in a similar way to humans. Information about perceptual similarity is likely prioritized over the potential influence of previous experience
 
Is birth attendance a uniquely human feature? New evidence suggests that Bonobo females protect and support the parturient
 
Prolonged transport and cannibalism of mummified infant remains by a Tonkean macaque mother
 

From 2017: Exceptionalism is not exceptional in relation to sexual and reproduction mechanisms — Contrasts of human and animal sexuality

Exceptionalism is not exceptional in relation to sexual and reproduction mechanisms: Contrasts of human and animal sexuality. Roy J. Levin. Clin. Anat. 30:940–945, 2017. https://doi.org/10.1002/ca.22960

Abstract: Speculation that the release of oxytocin by orgasm in the human female during coitus facilitates fertility by enhancing uterine sperm transport has been criticized as having no unequivocal empirical human evidence. However, a counter claim that this supports human “exceptionalism” as some form of uterine sperm transport occurs in other species. This is a misconception as it ignores that human uterine peristalsis, powered by contractions of the smooth muscle of the archimyometrium, facilitates sperm transport even without any systemic oxytocin involvement. Moreover, examination of various unique reproductive mechanisms in numerous animals also indicates that the claim is misjudged and rests on a biased interpretation of what “exceptionalism” means in this biological context. Ten chosen aspects of our sexuality are presented as being exceptional to humans.

From 2013: Sexual Wiring of Women's Breasts — Neuroscientists establish breasts as sexual organs

Sexual Wiring of Women's Breasts. Nigel Barber. Psychology Today, May 07, 2013. https://www.psychologytoday.com/us/blog/the-human-beast/201305/sexual-wiring-womens-breasts

Neuroscientists establish breasts as sexual organs

Excerpts (full text with links in the link above):

If men have sex on the brain, they are not alone. Recent research found that women’s sensory cortex has three distinct areas corresponding to stimulation of the clitoris, vagina, and cervix (1). To their surprise, researchers found that self stimulation of the nipples lights up the same areas. This sheds further light on the sexual importance of breasts.

In an earlier post, I discussed some evolutionary reasons that men are fascinated by women’s breasts and pointed out that stimulation of the breast plays a key role in women’s sexual arousal and satisfaction.


The Background

The permanently enlarged human breast is a peculiarity of our species (2). It may have some signal value in communicating fertility and plays a role in physical attractiveness.

Breasts are less eroticized in subsistence societies where women go topless than in our own where they are exploited in advertising, and in pornography. Even in subsistence societies, breasts are not entirely lacking in sexual significance and are generally stimulated in foreplay according to ethnographic accounts (3).

Moreover, the breasts play a key role in female sexual arousal and we are beginning to understand why in terms of hormones and neuroscience. In their classic report on the female sexual response, Masters and Johnson (4) pointed out that breast volume increases during sexual arousal in addition to changes in the areola and erection of the nipples.


The breast and bonding

The function of the breast in sexual behavior is sometimes attributed to face-to-face copulation that is unusual amongst mammals. If the breast is already used for mother- infant bonding, the argument goes, then it is a small step for it to be used in facilitating bonding between lovers. After all, it is in easy reach!

Stimulation of the nipple during breast feeding increases the amount of the hormone oxytocin that circulates. Oxytocin is often referred to as the “cuddling hormone” because it is released by male and female mammals during close social encounters of various kinds (5).

In addition to its general social effects, whereby a mother feels closeness for the baby she is feeding (and vice versa), there are other more specialized functions of oxytocin. One is that milk flows, a reflex known as the “milk let-down response” familiar to mothers and dairy farmers alike.

Another is sexual arousal, and orgasm. Some women experiencing intense pleasure - even orgasm - from breast feeding. This phenomenon was long written off as a mere oddity but neuroscientists are beginning to understand why it happens.


Sexual wiring of women’s brains

The great complexity of the female sexual response may be attributable to the fact that there is not one, but three sensory maps in the parietal cortex that light up in functional MRI images when the genitals are (self) stimulated. One represents the clitoris, another the vagina and the third represents the cervix.

All three of these maps also receive input when the nipple is stimulated. From a functional perspective, this means that the breast doubles as a truly sexual organ. It is not just an exciting visual stimulus for (most) men but also a key source of sexual pleasure for most women.

As to the wiring of men’s nipples the jury is out. Some men’s nipples are also responsive to sexual stimulation but the brain response has yet to be mapped.


Sources

1. Komisaruk, B. R., et al. (2011). Women’s clitoris, vagina, and cervix mapped on the sensory cortex: fMRI evidence. The Journal of Sexual Medicine, 8, 2822-2830.

2. Barber, N. (1995). The evolutionary psychology of physical attractiveness: Sexual selection and human morphology. Ethology and Sociobiology, 16, 395-424.

3. Ford, C. S., & Beach, F. A. (1951). Patterns of sexual behavior. New York: Harper.

4. Masters, W. H., & Johnson, V. E. (1966). Human sexual response. Boston: Little Brown.

5. Uvnas-Moberg, K. (1998). Oxytocin may mediate the benefits of positive social interaction and emotions. Psychoneuroendocrinology 23: 819-835.






Nigel Barber, Ph.D., is an evolutionary psychologist as well as the author of Why Parents Matter and The Science of Romance, among other books.

The mating preferences of female fruitflies are strongly influenced by the existing preferences they observe in other females, generating traditions that are repeatedly passed on to others and spread in the population

Culture and conformity shape fruitfly mating. Andrew Whiten et al. Science Vol. 362, Issue 6418, pp. 998-999. DOI: 10.1126/science.aav5674

Summary: Culture pervades every aspect of human lives, its achievements providing a compelling explanation for our species' domination of the planet (1). Defined as the matrix of traditions built by previous generations and inherited by social learning, culture was long thought to be uniquely human. In recent decades, however, mounting evidence for culture defined in this way has accumulated for numerous vertebrate species and an expanding diversity of behaviors (2). Examples include migratory knowledge in bighorn sheep (3); foraging techniques in humpback whales (4), great tits (5), and bumble bees (6); and tool use in apes (2). These discoveries suggest that although human culture has developed unprecedented complexities, it evolved from more elementary forms shared with other species. On page 1025 of this issue, Danchin et al. (7) offer evidence that a species that may surprise many should be added to this growing animal “culture club”: the humble fruitfly. They show that the mating preferences of female fruitflies are strongly influenced by the existing preferences they observe in other females, generating traditions that are repeatedly passed on to others and spread in the population. Animal culture may be a much more widespread phenomenon than hitherto acknowledged.

Thursday, November 29, 2018

Vertical pupils are perceived as more threatening; snake phobia, & not spider phobia, was found to be related to perceiving vertical pupils as threatening

The evil eye effect: vertical pupils are perceived as more threatening. Sinan Alper, Elif Oyku Us & Dicle Rojda Tasman. Cognition and Emotion, https://doi.org/10.1080/02699931.2018.1550741

ABSTRACT: Popular culture has many examples of evil characters having vertically pupilled eyes. Humans have a long evolutionary history of rivalry with snakes and their visual systems were evolved to rapidly detect snakes and snake-related cues. Considering such evolutionary background, we hypothesised that humans would perceive vertical pupils, which are characteristics of ambush predators including some of the snakes, as threatening. In seven studies (aggregate N = 1458) conducted on samples from American and Turkish samples, we found that vertical pupils are perceived as more threatening on both explicit (Study 1) and implicit level (Studies 2–7) and they are associated with physical, rather than social, threat (Study 4). Findings provided partial support regarding our hypothesis about the relevance of snake detection processes: Snake phobia, and not spider phobia, was found to be related to perceiving vertical pupils as threatening (Study 5), however an experimental manipulation of saliency of snakes rendered no significant effect (Study 6) and a comparison of fears of snakes, alligators, and cats did not support our prediction (Study 7). We discuss the potential implications and limitations of these novel findings.

KEYWORDS: Evolutionary psychology, horizontal pupil, snake detection theory, implicit association test, vertical pupil

In matters of the heart, as in many other matters generally, we adhere to existing states (“status quo bias”) & value them more (“endowment effect”)

I Have, Therefore I Love: Status Quo Preference in Mate Choice. Gul Gunaydin et al. Personality and Social Psychology Bulletin, https://doi.org/10.1177/0146167217746339

Abstract: Decades of research indicate that individuals adhere to existing states (“status quo bias”) and value them more (“endowment effect”). The present work is the first to investigate status quo preference within the context of trade-offs in mate choice. Across seven studies (total N = 1,567), participants indicated whether they would prefer remaining with a current partner possessing a particular set of traits (e.g., high trustworthiness, low attractiveness) or switching to an alternative partner possessing opposite traits. Preference for a given trait was highest when the individual representing the status quo (one’s romantic partner or an interaction partner) possessed that trait. Concerns about hurting the partner, ambiguity avoidance, and biased construal of the partner and the alternative predicted status quo preference and disapproval of the current partner by network members eliminated this effect. These findings indicate that when it comes to matters of the heart, we tend to love what we currently have.

Keywords: status quo bias, endowment effect, decision making, romantic relationships, mate-choice trade-offs

Psychopathy and homicide are importantly linked and that psychopathic personality functioning is a significant risk factor for various forms of lethal violence

Psychopathic killers: A meta-analytic review of the psychopathy-homicide nexus. Bryanna Fox, Matt DeLisi. Aggression and Violent Behavior, https://doi.org/10.1016/j.avb.2018.11.005

Abstract: Despite cultural notions that psychopathy and homicide are strongly linked, there has not been a quantitative meta-analytic review of the association between psychopathy and homicide offending. The current study meta-analyzed data from 29 unique samples from 22 studies that included 2603 homicide offenders, and found that the mean psychopathy score on the PCL-R for a homicide offender was 21.2 (95% CI = 18.9–23.6). This score is indicative of moderate psychopathy. The overall effect size r = 0.68 was large, and effect sizes intensified in studies of more severe manifestations of homicide including sexual homicide (r = 0.71), sadistic homicide (r = 0.78), serial homicide (r = 0.74), and multi-offender homicide (r = 0.80). Current study findings make clear that psychopathy and homicide are importantly linked and that psychopathic personality functioning is a significant risk factor for various forms of lethal violence.

An oxytocin receptor gene has been associated with emotional traits such as positive affect and related constructs such as optimism and self-esteem; this seems not replicable

The Oxytocin Receptor Gene (OXTR) Variant rs53576 is Not Related to Emotional Traits or States in Young Adults. Tamlin S. Conner et al. Front. Psychol. | doi: 10.3389/fpsyg.2018.02548

Abstract
BACKGROUND: To understand the genetic underpinnings of emotion, researchers have studied genetic variants in the oxytocin system, a hormone and neurotransmitter important to socio-emotional functioning. The oxytocin receptor gene (OXTR) variant rs53576 has been associated with emotional traits such as positive affect and related constructs such as optimism and self-esteem. Individuals carrying the A allele (AG and AA genotypes) of rs53576 have been found to score lower in these traits when compared to GG homozygotes, although not always. Given recent mixed evidence regarding this polymorphism, replication of these associations is critical.

METHODS: Using a cross-sectional design, the present study tested the association between rs53576 and a wide variety of emotional traits and states in a sample of 611 young adults ages 18 - 25 of various ethnicities (European, Asian, Māori/Pacific Islander, other). Participants completed standard trait measures of positive and negative affect, depressive symptoms, life engagement, psychological well-being, optimism, and self-esteem. They also completed state measures of positive and negative affect and life engagement for 13-days using Internet daily diaries.

RESULTS: Controlling for ethnicity and gender, variation at the OXTR variant rs53576 obtained from blood samples was not related to any of the emotional traits or states. This null finding occurred despite measuring emotions in ‘near to real time’ using daily diaries and having sufficient power to detect a medium effect size difference between homozygous genotype groups.

CONCLUSION: These findings suggest that variation at the rs53576 locus may not be as involved in emotional differences as initial studies suggested.

Keywords: Oxytocin, Genetics, Rs53576, Mental Health, emotion, mood, Well-being, gene, Daily diary

Mindfulness not related to behavioral & speech markers of emotional positivity (or less negativity), interpersonally better connected (quality or quantity), or prosocial orientation (more affectionate, less gossipy or complaining)

Dispositional mindfulness in daily life: A naturalistic observation study. Deanna M. Kaplan, L. Raison, Anne Milek, Allison M. Tackman, Thaddeus W. W. Pace, Matthias R. Mehl. PLOS, https://doi.org/10.1371/journal.pone.0206029

Abstract: Mindfulness has seen an extraordinary rise as a scientific construct, yet surprisingly little is known about how it manifests behaviorally in daily life. The present study identifies assumptions regarding how mindfulness relates to behavior and contrasts them against actual behavioral manifestations of trait mindfulness in daily life. Study 1 (N = 427) shows that mindfulness is assumed to relate to emotional positivity, quality social interactions, prosocial orientation and attention to sensory perceptions. In Study 2, 185 participants completed a gold-standard, self-reported mindfulness measure (the FFMQ) and underwent naturalistic observation sampling to assess their daily behaviors. Trait mindfulness was robustly related to a heightened perceptual focus in conversations. However, it was not related to behavioral and speech markers of emotional positivity, quality social interactions, or prosocial orientation. These findings suggest that the subjective and self-reported experience of being mindful in daily life is expressed primarily through sharpened perceptual attention, rather than through other behavioral or social differences. This highlights the need for ecological models of how dispositional mindfulness “works” in daily life, and raises questions about the measurement of mindfulness.

Check also Other consequences of mindfulness in the moral domain: Attenuated repair intentions after having read a scenario in which participants caused harm to a friend & attenuated intentions to change bad eating habits:

Potential negative consequences of mindfulness in the moral domain. Simon Schindler, Stefan Pfattheicher, Marc-Andre Reinhard. To appear in the European Journal of Social Psychology, January 2019, https://www.bipartisanalliance.com/2019/01/other-consequences-of-mindfulness-in.html

And Yoga and meditation are highly popular. Purportedly, they foster well-being by “quieting the ego” or, more specifically, curtailing self-enhancement. We observed that, instead, they boost self-enhancement:

Gebauer, Jochen, Nehrlich, A.D., Stahlberg, D., Sedikides, Constantine, Hackenschmidt, D, Schick, D, Stegmaie, C A, Windfelder, C. C, Bruk, A and Mander, J V (2018) Mind-body practices and the self: yoga and meditation do not quiet the ego, but instead boost self-enhancement. Psychological Science, 1-22. https://www.bipartisanalliance.com/2018/05/yoga-and-meditation-are-highly-popular.html

Wednesday, November 28, 2018

Those who minimize (vs. acknowledge) the extent to which their group is the target of discrimination report better well-being across myriad indicators: body mass index, social well-being, self-esteem, depression, & mental illness diagnosis

The Palliative Effects of System Justification on the Health and Happiness of Lesbian, Gay, Bisexual, and Transgender Individuals. Alexandra Suppes, Jaime L. Napier, Jojanneke van der Toorn. Personality and Social Psychology Bulletin, https://doi.org/10.1177/0146167218785156

Abstract: Across three studies, we examine the correlates of subjective well-being and mental and physical health among members of a historically disadvantaged group, namely, lesbian, gay, bisexual, and transgender (LGBT) individuals. Results show those who minimize (vs. acknowledge) the extent to which their group is the target of discrimination report better well-being across myriad indicators (Studies 1-3). We also demonstrate that this effect is mediated by perceived system fairness (Study 1); holds above and beyond internalized homonegativity (Studies 1 and 3) and ingroup identification (Studies 2-3); and is true regardless of whether individuals reside in hostile or accepting environments (Study 2), and regardless of whether individuals had personally experienced discrimination (Study 3). For some indicators (namely, body mass index [BMI], social well-being, self-esteem, depression, and mental illness diagnosis), the relationship between minimization of discrimination and well-being was stronger among those who had frequent (vs. rare) discriminatory experiences.

Keywords: well-being, health, system justification, LGBT, discrimination

Border wall expansion, 2007-2010, harmed Mexican workers & high-skill U.S. workers, but benefited U.S. low-skill ones; reduced trade costs between US & Mexico by 25% should have reduced Mexico to US migration with welfare gains

Border Walls. Treb Allen, Cauê de Castro Dobbin, Melanie Morten. NBER Working Paper No. 25267, Nov 2018, https://www.nber.org/papers/w25267

What are the economic impacts of a border wall between the United States and Mexico? We use confidential data on bilateral flows of primarily unauthorized Mexican workers to the United States to estimate how a substantial expansion of the border wall between the United States and Mexico from 2007 to 2010 affected migration. We then combine these estimates with a general equilibrium spatial model featuring multiple labor types and a flexible underlying geography to quantify the economic impact of the wall expansion. At a construction cost of approximately $7 per person in the United States, we estimate that the border wall expansion harmed Mexican workers and high-skill U.S. workers, but benefited U.S. low-skill workers, who achieved gains equivalent to an increase in per capita income of $0.36. In contrast, a counterfactual policy which instead reduced trade costs between the United States and Mexico by 25% would have resulted in both greater declines in Mexico to United States migration and substantial welfare gains for all workers.

To quantify partisan audience bias, we developed a domain-level score by leveraging the sharing propensities of registered voters on a large Twitter panel; we found little evidence for the "filter bubble'' hypothesis

Auditing Partisan Audience Bias within Google Search. Ronald E. Robertson et al. Proceedings of the ACM on Human-Computer Interaction - CSCW archive. Volume 2 Issue CSCW, November 2018, Article No. 148, doi: 10.1145/3274417

Abstract: There is a growing consensus that online platforms have a systematic influence on the democratic process. However, research beyond social media is limited. In this paper, we report the results of a mixed-methods algorithm audit of partisan audience bias and personalization within Google Search. Following Donald Trump's inauguration, we recruited 187 participants to complete a survey and install a browser extension that enabled us to collect Search Engine Results Pages (SERPs) from their computers. To quantify partisan audience bias, we developed a domain-level score by leveraging the sharing propensities of registered voters on a large Twitter panel. We found little evidence for the "filter bubble'' hypothesis. Instead, we found that results positioned toward the bottom of Google SERPs were more left-leaning than results positioned toward the top, and that the direction and magnitude of overall lean varied by search query, component type (e.g. "answer boxes"), and other factors. Utilizing rank-weighted metrics that we adapted from prior work, we also found that Google's rankings shifted the average lean of SERPs to the right of their unweighted average.


Check also: Few people are actually trapped in filter bubbles. Why do they like to say that they are? Plus: Are your Google results really that different from your neighbor’s? Laura Hazard Owen. NiemanLab, Dec 07 2018. http://www.niemanlab.org/2018/12/few-people-are-actually-trapped-in-filter-bubbles-why-do-they-like-to-say-that-they-are