Too Insensitive to Care: Alcohol Increases Human Aggression by Increasing Pain Threshold.

Objective: For thousands of years, people have used alcohol to reduce their sensitivity to physical and emotional pain. Previous research has shown that alcohol increases pain threshold. Previous research has also shown that pain threshold is positively associated with aggression.

A meta-analytic review of anger management activities that increase or decrease arousal: What fuels or douses rage?

Anger is an unpleasant emotion that most people want to get rid of. Some anger management activities focus on decreasing arousal (e.g.

Evolution, culture, and the possibility of peace.

Glowacki's work meshes well with our view of human nature as having evolved to use culture to improve survival and reproduction. Peace is a cultural achievement, requiring advances in social organization and control, including leaders who can implement policies to benefit the group, third-party mediation, and intergroup cooperation. Cultural advances shift intergroup interactions from negative-sum (war) to positive-sum (trade).

Surveillance of Gun-Related Conversations on Twitter.

Gun violence in the USA is a documented public health crisis. Publicly accessible data from Twitter posts can be used to rapidly capture and describe the public's recent conversations about guns. Because these gun-related conversations change rapidly, it is important to provide regularly updated information on them.

Media Influences on Children and Advice for Parents to Reduce Harmful Exposure to Firearm Violence in Media.

Firearm violence is now the leading cause of youth fatalities in the United States. This article outlines the various ways that entertainment media glorify the use of firearms and how this content can influence youth interest and use of guns. Social media are also increasingly serving as a source of risk for exposure to firearms.

Developmental Changes in the Relation between Youth Disclosure and Parenting Behavior: A Cohort-sequential Analysis.

To address a gap in the literature regarding the development of youth disclosure across the transition to adolescence, the current research uses a cohort-sequential approach to study youth disclosure from middle childhood through adolescence. Longitudinal data from three cohorts of parents were utilized (N = 1359; children at T1 were in grades 2 [M = 8.00 years, SD = 0.

Effect of a Gun Safety Video on Children's Behavior Around Real Guns: A Randomized Clinical Trial.

Importance: Firearms are the leading cause of death for children in the US. It is therefore crucial to identify effective ways to reduce firearm injuries among children.

Objective: To test the effectiveness of a gun safety video vs a car safety video on decreasing unsafe behaviors around real guns after exposure to a violent movie with vs without guns.

Frustration-aggression hypothesis reconsidered: The role of significance quest.

One of the oldest scientific theories of human aggression is the frustration-aggression hypothesis, advanced in 1939. Although this theory has received considerable empirical support and is alive and well today, its underlying mechanisms have not been adequately explored. In this article, we examine major findings and concepts from extant psychological research on hostile aggression and offer an integrative conception: aggression is a primordial means for establishing one's sense of significance and mattering, thus addressing a fundamental social-psychological need.

Multi-Site Replications in Social Psychology: Reflections, Implications, and Future Directions.

Social psychology findings have fared poorly in multi-site replication attempts. This article considers and evaluates multiple factors that may contribute to such failures, other than the "crisis" assumption that most of the field's published research is so badly flawed that it should be dismissed wholesale. Low engagement by participants may reduce replicability of some findings (while not affecting certain others).

Within-Person Bidirectional Associations Over Time Between Parenting and Youths' Callousness.

Objective: Callousness has been identified as a key driver of aggressive and violent behavior from childhood into early adulthood. Although previous research has underscored the importance of the parenting environment in contributing to the development of youth callousness, findings have generally been confined to the between-individual level and have not examined bidirectionality. In the current study, we test whether aspects of parenting are associated with callousness from childhood to adolescence both between and within individuals, examine the temporal ordering of associations, and test whether these relations are moderated by gender or developmental stage.

Development and Validation of the Single-Item Mindfulness Scale (SIMS).

Mindfulness is a focused attention to and acceptance of present experiences. Although several reliable and valid multi-item measures of trait mindfulness exist, researchers may sometimes want a short and quick measure of mindfulness. In this project, we developed and validated the Single-Item Mindfulness Scale (SIMS) to assess trait mindfulness.

A Review of Multisite Replication Projects in Social Psychology: Is It Viable to Sustain Any Confidence in Social Psychology's Knowledge Base?

Multisite (multilab/many-lab) replications have emerged as a popular way of verifying prior research findings, but their record in social psychology has prompted distrust of the field and a sense of crisis. We review all 36 multisite social-psychology replications (plus three articles reporting multiple ministudies). We start by assuming that both the original and the multisite replications were conducted in honest and diligent fashion, despite often yielding different conclusions.

A Meta-Analytic Review of the Validity of the Tangram Help/Hurt Task.

The Tangram Help/Hurt Task (THHT) allows participants to help another participant win a prize (by assigning them easy tangrams), to hurt another participant by preventing them from winning the prize (by assigning them difficult tangrams), or to do neither (by assigning them medium tangrams) in offline or online studies. Consistent with calls for continued evidence supporting psychological measurement, we conducted a meta-analytic review of the THHT that included 52 independent studies involving 11,060 participants. THHT scores were associated with helping and hurting outcomes in theoretically predicted ways.

Correcting misperceptions of gun policy support can foster intergroup cooperation between gun owners and non-gun owners.

Past research finds that a majority of gun and non-gun owners support key gun safety policies, yet gun owners tend to underestimate other gun owners' support for these policies. We predicted that these misperceptions of support might lead gun owners to view non-gun owners as being less similar to themselves, which might undermine intergroup cooperation to promote gun safety policies and fuel intergroup animosity. Importantly, we also predicted that correcting these misperceptions would be an effective way to reduce intergroup division and enhance intergroup cooperation.

Effects of violent and nonviolent sexualized media on aggression-related thoughts, feelings, attitudes, and behaviors: A meta-analytic review.

Women are often depicted as sex objects rather than as human beings in the media (e.g., magazines, television programs, films, and video games).

The link between narcissism and aggression: A meta-analytic review.

This meta-analytic review examines the link between narcissism and aggression, and whether the link is stronger under provocation conditions. A total of 437 independent studies were located, which included 123,043 participants. Narcissism was related to both aggression (r = .

Longitudinal predictions of young adults' weapons use and criminal behavior from their childhood exposure to violence.

In this study, we examine whether youth who are exposed to more weapons violence are subsequently more likely to behave violently with weapons. We use data collected with a 3-cohort, 4-wave, 10-year longitudinal study of 426 high-risk youth from Flint, Michigan, who were second, fourth, or ninth-graders in 2006-2007. The data were obtained from individual interviews with the youth, their parents, and their teachers, from archival school and criminal justice records, and from geo-coded criminal offense data.

Public Opinion Perceptions, Private Support, and Public Actions of US Adults Regarding Gun Safety Policy.

Importance: Despite broad public support for gun safety policies, minimal policy implementation has occurred.

Objective: To investigate factors that encourage greater private support for and public action on gun safety policy.

Design, Setting, And Participants: Three studies were conducted: a public opinion survey (Study 1) was conducted from January 8 to 22, 2019, and 2 experiments (Studies 2 and 3) were conducted from August 27 to October 17, 2019, and April 15 to 21, 2020, respectively.

Measuring the perception of aggression in driving behavior.

The study of aggressive driving is an important step in the reduction of (often fatal) crashes due to this behavior. However, even though various measures of aggressive driver behavior have been proposed, a more thorough examination of what the driving public perceives as aggressive driving behavior can be performed. A nationally representative sample of 198 American adults saw and rated the aggressiveness of various driving behaviors in videos.

Stimulating the ventrolateral prefrontal cortex (VLPFC) modulates frustration-induced aggression: A tDCS experiment.

Background: The prefrontal cortex is crucial for top-down regulation of aggression, but the neural underpinnings of aggression are still poorly understood. Past research showed the transcranial direct current stimulation (tDCS) over the ventrolateral prefrontal cortex (VLPFC) modulates aggression following exposure to risk factors for aggression (e.g.

Effect of Exposure to Gun Violence in Video Games on Children's Dangerous Behavior With Real Guns: A Randomized Clinical Trial.

Importance: Among resource-rich countries, the United States has the highest rate of child mortality by unintentional firearm use.

Objective: To test whether children's exposure to violent video games increases dangerous behavior around firearms.

Design, Setting, And Participants: This randomized clinical trial was set in a university laboratory and included pairs of children aged 8 to 12 years who knew each other.

The competitive reaction time task: The development and scientific utility of a flexible laboratory aggression paradigm.

Laboratory measures play an important role in the study of aggression because they allow researchers to make causal inferences. However, these measures have also been criticized. In particular, the competitive reaction time task (CRTT) has been criticized for allowing aggression to be operationalized in multiple ways, leaving it susceptible to "p-hacking.

Effects of sexualized video games on online sexual harassment.

Negative consequences of video games have been a concern since their inception. However, one under-researched area is the potential negative effects of sexualized video game content on players. This study analyzed the consequences of sexualized video game content on online sexual harassment against male and female targets.

CLASH: Climate (change) and cultural evolution of intergroup conflict.

Aggression and violence levels generally increase as one moves closer to the equator, but why? We developed a new theoretical model, CLimate, Aggression, and Self-control in Humans (CLASH; van Lange, Rinderu, & Bushman, 2017b, 2017c), to understand differences within and between countries in aggression and violence in terms of differences in climate. Colder temperatures, and especially larger degrees of seasonal variation in climate, call for individuals and groups to adopt a slower life history strategy, revealed in a greater focus on the future (vs. present) and a stronger focus on self-control-variables that are known to inhibit aggression and violence.