How risk signaling influences binge drinking impression formation: An evolutionary experimental approach

Background. Evolutionary theory-driven alcohol prevention programs for adolescents are lacking. This study introduced a binge drinking impression formation paradigm to test whether emphasizing sexual dysfunction induced by alcohol abuse lowers positive attitudes and expectancies related to binge drinking when compared with cognitive or long-term health consequences. Method. In a between-subjects experiment, 269 French high school students (age, M = 15.94, SD = 0.93, 63.20% women) watched professional-quality videos emphasizing sexual impotence (n = 60), cognitive impairment (n = 72), or long-term effects (cancer, cardiovascular disease, n = 68) induced by alcohol and then had to evaluate a drinking scene. We predicted that the video on impotence would be the most impactful when compared with the other videos. Results. Results showed that women evaluated the target as less attractive after viewing the cognitive video compared with the video on impotence. Men were more willing to play sports against the target after viewing the cognitive video, compared with the video on impotence. Conclusions. These results showed that evolutionary meaning might shape impressions formed by participants depending on the context. This study calls for further replications using the same design and materials

Immediate and 15-Week Correlates of Individual Commitment to a “Green Monday” National Campaign Fostering Weekly Substitution of Meat and Fish by Other Nutrients

Promoting healthier and more sustainable diets by decreasing meat consumption represents a significant challenge in the Anthropocene epoch. However, data are scarce regarding the effects of nationwide meat reduction campaigns. We described and analyzed the correlates of a national campaign in France (called �Green Monday�, GM) promoting the weekly substitution of meat and fish by other nutrients. Two cross-sectional online surveys were compared: a National Comparison sample (NC) of the French general population and a self-selected sample of participants who registered for the Green Monday campaign. A follow-up study was carried out in the GM sample, in which participants were asked during 15 weeks whether or not they had substituted meat and fish. There were 2005 participants aged 18�95 (47.7% females) in the NC sample and 24,507 participants aged 18�95 (77.5% females) in the GM sample. One month after the beginning of the campaign, 51.2% of the respondents reported they had heard about Green Monday in the NC sample, and 10.5% indicated they had already started to apply Green Monday. Logistic regression analysis showed that compared to the NC sample, participants belonging to the GM sample displayed a higher rate of females, Odds Ratio (OR) = 4.26, 95% Confidence Interval (CI): 3.86�4.71, were more educated, OR = 1.32, 95% CI: 1.28�1.36, had higher self-rated affluence, OR = 1.50, 95% CI: 1.42�1.58 and the size of their vegetarian network was greater, OR = 1.50, 95% CI: 1.41�1.58. They reported a slightly higher frequency of meat consumption, OR = 1.05, 95% CI: 1.01�1.10, while their frequency of fish consumption was lower, OR = 0.81, 95% CI: 0.76�0.87. Finally, the personality dimension Openness was more strongly endorsed by participants in the GM sample, OR = 1.79, 95% CI: 1.65�1.93. A multiple regression analysis indicated that Openness also predicted the number of participation weeks in the GM Sample (beta = 0.03, p < 0.009). In conclusion, specific demographic and personality profiles were more responsive to the national campaign, which could inform and help to shape future actions aiming at changing food habits

Personality Predicts Obedience in a Milgram Paradigm

Enquête sur les personnes qui ont désobéi (leur personnalité, leur vote politique, leur consommation de TV...) dans la retranscription de l'expérience de Milgram sur un plateau de télévision (émission TV "le jeu de la mort" diffusée sur France 2 en mars 2010)International audienceThis study investigates how obedience in a Milgram-like experiment is predicted by interindividual differences. Participants were 35 males and 31 females aged 26–54 from the general population who were contacted by phone 8 months after their participation in a study transposing Milgram's obedience paradigm to the context of a fake television game show. Interviews were presented as opinion polls with no stated ties to the earlier experiment. Personality was assessed by the Big Five Mini-Markers questionnaire (Saucier, 1994). Political orientation and social activism were also measured. Results confirmed hypotheses that Conscientiousness and Agreeableness would be associated with willingness to administer higher-intensity electric shocks to a victim. Political orientation and social activism were also related to obedience. Our results provide empirical evidence suggesting that individual differences in personality and political variables matter in the explanation of obedience to authority. Stanley Milgram carried out the " Eichmann experiment " to determine whether Nazi war criminals such as Adolf Eichmann, whose trial had begun a couple of months earlier in Jerusalem, could have committed the heinous acts of the Holocaust merely because of a misplaced obedience to authority (Milgram, 1974). The German philosopher Hanna Arendt, a reporter during the trial of Eichmann, coined the phrase " the banality of evil " to describe him, seeing behind the architect of the Holocaust a thoroughly normal person. Going further, Arendt also mentioned that Eichmann's attitude toward his family and friends was " not only normal but most desirable " (Arendt, 1977, p. 25). Whatever the accuracy and truth of such an analysis (see Cesarani, 2007, for an alternative view of Eichmann), the issue of individual dispositions related to obedience was also included in Milgram's thinking as he wrote, " I am certain that there is a complex personality basis to obedience and disobedience , but I know we have not found it " (Milgram, 1974, p. 205). Somewhat paradoxically, the social psychologist consensually credited for having accelerated the shift away from internal explanations of behavior toward environmental and situational factors considered personality as a relevant source of variation in obedient behavior (Benjamin & Simpson, 2009). In the present study, we shed a new light on how personality factors predicted obedience and rebellion in a Milgram-like study recently carried out in the context of a television game show (Beauvois, Courbet, & Oberlé, 2012). We hypothesize

A message in a bottle: extrapharmacological effects of alcohol on aggression

"The physiological and expectancy effects of alcohol consumption on the aggressive behavior of 116 general-population males aged 18–45 years were analyzed separately in a naturalistic field experiment using a 3 × 3 Balanced Placebo Design (BPD). Participants were given a non-alcoholic drink, a drink targeting a Blood Alcohol Concentration (BAC) of .05%, or a drink targeting a BAC of .1%. Within these three groups, three expectancy levels were induced regarding the quantity of alcohol ingested. Aggressive behavior was measured as retaliation against an aggressive confederate, in the form of amounts of hot sauce and salt administered in a taste test. Expectancies significantly increased aggressive behavior, whereas actual quantity of alcohol ingested was unrelated to aggression. Aggressive dispositions also predicted aggressive behavior." [author's abstract

COVID-19 pandemic lockdown and problematic eating behaviors in a student population

Background and aims: Since mid-March 2020, over 3 billion people have been confined as a result of the COVID-19 pandemic. Problematic eating behaviors are likely to be impacted by the pandemic through multiple pathways. This study examined the relationships between stress related to lockdown measures and binge eating and dietary restriction in a population of French students during the first week of confinement. Methods: A sample of undergraduate students (N = 5,738) completed an online questionnaire 7 days after lockdown measures were introduced. The survey comprised variables related to lockdown measures and the COVID-19-pandemic, mood, stress, body image, binge eating and dietary restriction during the past 7 days, as well as intent to binge eat and restrict in the following 15 days. Results: Stress related to the lockdown was associated with greater likelihood of binge eating and dietary restriction over the past week and intentions to binge eat and restrict over the next 15 days. Greater exposure to COVID-19-related media was associated with increased eating restriction over the past week. Binge eating and restriction (past and intentions) were associated with established risk factors, including female gender, low impulse regulation, high body dissatisfaction, and having a concurrent probable eating disorder. Discussion and conclusion: The higher the stress related to the first week of confinement, the higher the risk of problematic eating behaviors among students, particularly those characterized by eating-related concerns. Screening for risk factors and providing targeted interventions might help decrease problematic eating behaviors among those who are most vulnerable

Universities should lead on the plant-based dietary transition

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