Thursday, April 19, 2018

“But I Don’t Eat that Much Meat.” Situational Underreporting of Meat Consumption by Women

“But I Don’t Eat that Much Meat.” Situational Underreporting of Meat Consumption by Women. Hank Rothgerber. Society & Animals, DOI: 10.1163/15685306-12341468

Abstract: As arguments become more pronounced that meat consumption harms the environment, public health, and nonhuman animals, meat-eaters should experience increased pressure to justify their behavior. The present research further tested the notion that women employ indirect meat-eating justification strategies relative to men, specifically the claim that as a form of self-justification, women would underreport meat consumption when the context called in to question their dietary behavior. Men and women were randomly assigned to a treatment condition in which they were informed that they would watch a PETA documentary about meat production or to a control condition, and then they completed a questionnaire assessing the amount of various meats they consumed. Women reported eating less meat when threatened by watching the documentary, while male estimates were unchanged across conditions. Furthermore, this effect was sensitive to how much participants believed nonhuman animals shared similar emotions to humans.

Keywords: cognitive dissonance; gender; human-animal emotional similarity; meat-eating justification; meat consumption

No consistent uptick in aggressive content of sex videos over the past decade (the average video today contains shorter segments showing aggression); and videos with aggressive acts are both less likely to receive views and less likely to be ranked favorably by viewers, who prefer videos where women clearly perform pleasure

“Harder and Harder”? Is Mainstream Pornography Becoming Increasingly Violent and Do Viewers Prefer Violent Content? Eran Shor & Kimberly Seida. The Journal of Sex Research,
https://doi.org/10.1080/00224499.2018.1451476

Abstract: It is a common notion among many scholars and pundits that the pornography industry becomes “harder and harder” with every passing year. Some have suggested that porn viewers, who are mostly men, become desensitized to “soft” pornography, and producers are happy to generate videos that are more hard core, resulting in a growing demand for and supply of violent and degrading acts against women in mainstream pornographic videos. We examined this accepted wisdom by utilizing a sample of 269 popular videos uploaded to PornHub over the past decade. More specifically, we tested two related claims: (1) aggressive content in videos is on the rise and (2) viewers prefer such content, reflected in both the number of views and the rankings for videos containing aggression. Our results offer no support for these contentions. First, we did not find any consistent uptick in aggressive content over the past decade; in fact, the average video today contains shorter segments showing aggression. Second, videos containing aggressive acts are both less likely to receive views and less likely to be ranked favorably by viewers, who prefer videos where women clearly perform pleasure.

The female sex appeal, based on women's bodily features attractive to men, is rather unusual in the animal kingdom, where males tend to show off the more catching and outlandish "sexual ornaments".

Rolf Degen https://twitter.com/DegenRolf summarizes:  The female sex appeal, based on women's bodily features attractive to men, is rather unusual in the animal kingdom, where males tend to show off the more catching and outlandish "sexual ornaments".

The evolution of male mate choice and female ornamentation; a review of mathematical models. Courtney L Fitzpatrick Maria R Servedio. Current Zoology, zoy029, https://doi.org/10.1093/cz/zoy029

Abstract: The evolution of male preferences and of female ornaments in species with traditional sex roles (i.e. polygyny) have been highlighted as areas in need of more active research by an accumulation of recent findings. The theoretical literature on these topics is relatively small and has centered on the evolution of male choice. Mathematical models have emphasized that, under polygyny, the evolution of male preferences faces much greater competition costs than does the evolution of female preferences. We discuss ways in which costly male choice can nonetheless evolve, via 1) direct selection that favors preferences, primarily through mating with highly fecund females, 2) mechanisms that rely on indirect selection, which weakly counters competitive costs of male preferences, and 3) genetic constraints, primarily in the form of pleiotropy of male and female preferences and traits. We also review a variety of mathematical models that have elucidated how costs to male preferences can be avoided. Finally we turn our attention to the relatively scant theoretical literature on the effects of male mate choice on the evolution of female traits. We emphasize the finding that the presence of male preferences cannot be assumed to lead to the evolution of female ornaments during polygyny, and point out situations where models have elucidated ways in which female ornaments can nevertheless evolve.

Keywords: male mate preferences, female ornaments, mathematical models

h/t: https://twitter.com/DegenRolf

Norway rats: Food-deprived individuals communicate need more intensively than satiated ones, and donors provide help corresponding to the intensity of the recipients’ communication

Schweinfurth, M. K., & Taborsky, M. (2018). Norway rats (Rattus norvegicus) communicate need, which elicits donation of food. Journal of Comparative Psychology. http://dx.doi.org/10.1037/com0000102

Abstract: Reciprocal cooperation has been observed in a wide range of taxa, but the proximate mechanisms underlying the exchange of help are yet unclear. Norway rats reciprocate help received from partners in an iterated Prisoner’s Dilemma game. For donors, this involves accepting own costs to the benefit of a partner, without obtaining immediate benefits in return. We studied whether such altruistic acts are conditional on the communication of the recipient’s need. Our results show that in a 2-player mutual food-provisioning task, prospective recipients show a behavioral cascade reflecting increasing intensity. First, prospective receivers reach out for the food themselves, then they emit ultrasonic calls toward their partner, before finally showing noisy attention-grabbing behaviors. Food-deprived individuals communicate need more intensively than satiated ones. In return, donors provide help corresponding to the intensity of the recipients’ communication. This indicates that rats communicate their need, which changes the helping propensity of potential donors. Communication of need and corresponding adjustment of cooperation may be a widespread proximate mechanism explaining the mutual exchange of services between animals.

We think that our own behavior when drinking is similar to our sober behavior; that we are more able to maintain a balance between staying in control and having fun while drinking; that we are far from negative drinkers (like compulsive or anti-social ones); and attribute our drinking behaviors to situational factors, but describe other people as intentionally violent or aggressive

I Am Quite Mellow But I Wouldn't Say Everyone Else Is”: How UK Students Compare Their Drinking Behavior to Their Peers'. Emma L. Davies, Emma-Ben C. Lewis & Sarah E. Hennelly. Substance Use & Misuse, https://doi.org/10.1080/10826084.2017.1416403

ABSTRACT: Background: Excessive drinking is commonplace at UK Universities. Individuals may misperceive how much they drink compared to others and are less likely to think that they will suffer adverse consequences. Young people often distance themselves and their friends from ‘problem drinkers’. Objectives: The aim of the study was to explore how student drinkers compared their own drinking behaviors to the drinking behaviors of others. Methods: An online survey was completed by 416 students aged 18–30 (68.5% female). They were asked ‘how do you think your drinking compares with other people like you?' and ‘how do you think your behavior when you drink compares with other people like you?’ Answers were subjected to thematic analysis. Results: The first main theme was about ‘identification as a ‘good’ drinker’. Participants suggested their own behavior when drinking was similar to their sober behavior. Further, they viewed themselves as more able to maintain a balance between staying in control and having fun while drinking. The second main theme was about ‘distancing from being a ‘bad’ drinker. Participants distanced themselves from negative prototypical drinkers, such compulsive or anti-social drinkers. They also attributed their own drinking behaviors to situational factors, but described other people as intentionally violent or aggressive. Conclusions/Importance: These findings may explain the failure of some health messages to change drinking behaviors. If drinkers perceive that their behavior when they drink is better than other people's then they may discount intervention messages. Targeting these biases could be incorporated into future interventions.

KEYWORDS: Alcohol, correspondence bias, social comparison, prototypes, qualitative

Social identity, rather than partisanship or ideology, explains sorting in popular firlm viewership

Silver screen sorting: Social identity and selective exposure in popular film viewing. Jeremiah J. Castle, , Kyla Stepp. The Social Science Journal, https://doi.org/10.1016/j.soscij.2018.04.001

Highlights
•    Selective exposure on the basis of social identity is an important factor in film viewership.
•    Our theory is tested using a sample of college students.
•    Wide gaps in movie viewership are apparent between partisans.
•    Social identity, rather than partisanship or ideology, explains sorting in movie viewership.

Abstract: While research in media and politics has long stressed the importance of television, the political impact of movies has largely been ignored. However, a small body of literature suggests that both political docudramas and popular films may have the capacity to change the issue attitudes of viewers. Building on that work, this paper examines the potential for selective exposure in movie viewership. We develop a theory that there is large-scale sorting into popular movies rooted in social identity theory. We argue that sorting is a result of two processes: film studios marketing films towards particular social groups and individuals sorting into films based on social group characteristics. We test this theory using a unique dataset in which undergraduate students were asked to rate trailers for a variety of political docudramas and popular films. Our results indicate that there is indeed widespread sorting into popular films on the basis of social identities rooted in socio-demographic traits.

Keywords: Movies; Films; Selective exposure; Social identity; Public opinion