Articles tagged with Aggression
A new study from Case Western Reserve University found that aquarium fishes are more aggressive in reduced environments, with 182.9 million ornamental fishes at risk. Increasing tank size and complexity can reduce harmful aggressive behaviors, leading to healthier fish.
Researchers found that low serotonin levels weaken communication between brain regions, making it harder to control angry feelings. Healthy volunteers' brains were scanned while viewing angry faces to understand the impact of serotonin on aggression.
Research suggests that competitiveness in video games is a key factor in aggressive behavior, with highly competitive games leading to greater elevations in aggression. In contrast, less competitive games do not elevate aggressive behavior, regardless of violence content.
Research at Queen's University Biological Station reveals that singing shared songs is an attention-seeking behavior often displayed by older males. Song sharing is linked to individual differences like age and neighborhood characteristics.
Research at Johannes Gutenberg University Mainz found that ant colonies with higher levels of aggression and behavioral variability are more productive, producing more offspring and biomass. This suggests that a division of labor based on individual personality traits may be the key to their ecological success.
A new model from Northwestern University's Kellogg School of Management suggests that power, intoxication, and anonymity can inspire both heroism and hedonism. The researchers argue that disinhibition can reveal an individual's true motives and shape behavior.
A study finds that sleepiness in college students leads to counterfactual thinking, including thoughts of how others could have done better. Sleepy individuals are also more likely to engage in displaced aggression and plan revenge.
Researchers found a two-fold higher risk for symptoms of sleep-disordered breathing and daytime sleepiness in urban schoolchildren with conduct problems like bullying. The study suggests that poor sleep may play into bullying or aggressive behaviors, highlighting the importance of good sleep for a healthy lifestyle.
Research suggests people who exert self-control are drawn to aggressive art and public policy appeals, leading to increased irritability and quickness to anger. This is contrary to messages that promote behavioral change, which can be perceived as controlling.
Researchers found cortisol levels increase when behavior problems first appear, then decrease if issues persist. Interventions should start as soon as behavioral problems emerge to address mental and physical health concerns.
Researchers at the University of Exeter found that zebra finches with like-minded partners raised healthier chicks than those with dissimilar dispositions. The study suggests improved cooperation and coordination of effort may contribute to better parenting outcomes.
A study by U of A Psychology researcher Peter Hurd found that less sensitive genes were associated with more aggressive behaviour, suggesting a possible link between fetal testosterone exposure and adult social behavior. The researchers also discovered subtle forms of aggression, such as indirect aggression through gossip-like behaviors.
Researchers found that fruit flies will attack females who smell and taste like males, and will court males with female-like patterns of behavior. By manipulating a gene that governs pheromonal profiles and behavioral cues, the study reveals the importance of behavioral feedback in aggression.
New research reveals that pheromonal cues alone can label another fly as a competitor, leading to male aggression. Behavioral cues also play a crucial role, with males attacking both male- and female-like flies.
Research published in the Oxford Journal Social Cognitive and Affective Neuroscience found that exposure to violent media can lead to decreased brain activation in regions involved in emotions and emotional responses. This desensitization can result in increased acceptance of violence and a reduced likelihood of forming consequences wi...
Research by Elizabeth Tibbetts and Amanda Izzo found that paper wasps punish peers who falsely advertise their fighting ability to maintain accurate signals. In experiments, wasps with mismatched facial patterns and behavior were punished, while those whose signal and behavior matched were rarely targeted.
A new study confirms that unhappy families have specific difficulties for children during early school years. Disengaged families exhibit cold, controlling relationships leading to aggressive behavior and depression, while enmeshed families display high levels of conflict, anxiety, and social withdrawal as their child navigates school.
Children with insecure attachments have repeated experiences of caregivers responding inconsistently, leading to behavioral problems like aggression and hostility. The meta-analysis of 69 studies found that early insecure attachment to mothers is associated with later behavioral issues in children, including boys.
A subset of adults with Social Anxiety Disorder exhibit aggressive, risky behaviors, causing short-term positive experiences but long-term negative impacts on quality of life. Understanding the underlying causes of these actions can help psychologists develop more effective interventions.
Researchers found that adolescent boys experience 'mean' behaviors through larger groups, direct teasing, and exclusion from sports. Both girls and boys understand the reasons behind relationally aggressive behaviors, including power and social dominance, as well as jealousy, anger, and insecurity.
A recent study led by Iowa State University's Craig Anderson analyzed over 130,000 subjects worldwide and found that exposure to violent video games is a causal risk factor for increased aggressive thoughts and behavior. The research suggests that playing violent video games increases the likelihood of aggressive behavior in both short...
Researchers found bonobos never seem to learn how not to share, whereas chimps do as youngsters but grow out of it. Bonobos' behavior is shaped by their environment's abundance, leading to a 'Peter Pan world'. They shared like juveniles even after reaching adulthood, unlike chimps.
A new study by University of Virginia psychologists suggests that well-adapted youth with positive friendships will use social media to further enhance their relationships. However, teens with behavioral problems and difficulty making friends may use social media in negative ways or not at all.
A study published in Nature found that testosterone actually encourages fair behaviors if it serves to ensure one's own status. The hormone increases sensitivity for status, leading to pro-social behavior in humans, rather than aggression. This challenges the long-held assumption that testosterone causes aggressive behavior.
Researchers identify pheromone-detecting neurons in the fly's antenna that promote aggression, leading to increased fighting among males. The discovery provides insight into how aggression is hardwired into the brain by an animal's genes.
A study published in the Journal of Child Psychology and Psychiatry found that over-reactive parenting can increase aggressive behavior in introverted children, while benevolent and conscientious children are less affected. The study also showed that rule-breaking behavior tends to persist into adolescence.
A recent study found that a person's facial width-to-height ratio can be used to predict their tendency towards aggression. Volunteers rated the aggressiveness of male faces and found high correlation between the rating and the face's WHR, suggesting that subtle differences in face shape may affect personality judgments.
Scientists successfully recreated chemicals that trigger aggressive behavior in Argentine ants, revealing insights into the insects' social behavior and potential methods for controlling their populations. The findings have implications for understanding the invasive species' success in non-native regions.
Researchers found that individual wasps benefit from being recognizable, as they are less likely to be targeted in aggressive encounters. This finding suggests that diversity may promote group stability, extending beyond wasp societies to potentially influence human facial variation and social interactions.
A study at UCSF has identified networks of nerve cells controlled by estrogen that influence male territorial behavior, challenging the view of single gender-related behaviors.
A new study in mice reveals that early estrogen exposure 'masculinizes' the brain circuitry, leading to aggressive and territorial behaviors typically observed in males. The researchers found that female mice exposed to estrogen as pups exhibit similar behaviors, suggesting a critical role for estrogen in shaping masculine behavior.
Prison environments can benefit from behavior modification techniques, such as systematic reinforcement of pro-social behaviors. Decreasing prison populations is also crucial, particularly for those with high-risk behavior, and providing job training to help prisoners reintegrate into society.
Researchers at Caltech trained computers to automatically analyze aggression and courtship in fruit flies, enabling high-throughput screens for genes controlling these behaviors. The program allows for accurate analysis of complex social behaviors in a matter of minutes, improving the efficiency of genetic research.
A new study by psychologists found that TV ratings for kids' shows don't reflect the aggressive content, with cartoons containing higher levels of physical violence than general audiences. The researchers argue that ratings should be improved to address indirect aggression, a type of harm that is non-physical and often overlooked.
Imaging findings on MDCT suggest a higher risk of recurrence and metastasis in solid pseudopapillary tumors of the pancreas. The study found that larger tumor size and specific imaging features were associated with increased vascular invasion and capsular disruption, indicating malignant potential.
A new University of Pennsylvania survey found that most dogs will continue to be aggressive unless training techniques are modified. Non-aversive training methods, such as exercise and rewards, elicited few aggressive responses. The study highlights the risk of dominance-based training, which can lead to owner-directed aggression.
Research suggests that peer victimization during adolescence may predict sexual behavior later in life. Female victims tend to have sex at earlier ages and more partners, while male victims face reduced opportunities. The study's findings imply a possible evolutionary link between aggression and reproductive access.
A new psychodynamic approach, CAPSLE, focuses on empathy and power dynamics to reduce children's experiences of aggression and improve classroom behavior. The study found that schools implementing CAPSLE reported fewer aggressive incidents and more positive bystanding behaviors.
Researchers discover that individuals with low-activity MAOA gene display higher levels of aggression in response to provocation, particularly when faced with significant financial loss. The study suggests genetic influences on aggression and punishment behavior, questioning the altruistic punisher theory.
A recent study published in Development and Psychopathology found that mothers who smoke during pregnancy are more likely to have children with aggressive behavior. The risk is higher among low-income women and those with a history of anti-social behavior.
A study published in Personal Relationships reveals that women prioritize men who are recognized by peers for their skills and achievements, rather than those who use coercive tactics to subordinate rivals. In long-term relationships, women's preferences for prestige increase, contradicting common dating advice.
A large-scale Rutgers University study shows a conclusive link between media violence and real violence in adolescents. The research found that exposure to violent media significantly contributes to the prediction of violence and general aggression, even when other factors are considered.
A new study found a positive relationship between violent TV viewing and negative personality attributes among white males and females, and African-American females. However, African-American males showed no increased aggression or lower IQ despite watching violent TV.
A study published in Child Development found that girls from poor neighborhoods are more likely to initiate sex at an early age, especially those with conduct problems. Peer groups and deviant friends play a significant role in shaping their behavior and desirability of early sexual activity.
Early maturity and low parental nurturance, communication, and knowledge are linked to increased aggression in adolescent girls. Positive parenting skills can mitigate negative effects of early maturation.
Research reveals that children raised by authoritarian parents are more prone to act out bullying behavior, while those from nurturing families are less likely to bully. The study also found that middle-income families are less likely to produce bullies than high- or low-income families.
A recent study published in Aggressive Behavior found that high school girls who perceive themselves as attractive have a 35% increased chance of being indirectly victimized. Older teens who are sexually active also face a higher risk, with a 35% increased likelihood of being bullied.
A new study challenges the idea that antisocial behavior is relatively unchangeable during the teenage years. The study found that decision making and behavior among adolescents are related across time, with efforts to help being more effective if they address how adolescents make decisions about acting aggressively.
A study found that hyperactive girls are more likely to experience serious adjustment problems in adulthood, including smoking, poor job performance, and abusive relationships. The research suggests that early intervention programs targeting hyperactivity in elementary school may be crucial in preventing these issues.
Researchers found that dominant males store more urine, urinate more frequently, and have stronger-smelling urine than subordinate males. This study sheds light on the role of urine pheromones in influencing same-sex behavior in Mozambique tilapia.
Studies show that watching violent programs can cause parts of the brain to become less active, leading to reduced ability to control aggressive behavior. This effect is seen after repeated viewings of violence and is not observed with non-violent movies.
Researchers at Howard Hughes Medical Institute disabled a sensory organ in female mice, prompting them to exhibit male-like behaviors during courtship. The findings suggest that the neural circuits governing gender-specific behaviors are similar in both sexes.
A new study found that popular peer groups have a profound influence on early teen behavior, causing children to become more similar in behavior to their group members. Conversely, well-liked groups have little impact, except for adolescents who are part of disliked groups, which can lead to increased deviant behavior.
A study found that children who bully are more likely to have a sleep-related breathing disorder, such as snoring or obstructive sleep apnea. Treatment of the disorder has been shown to improve other behaviors in children, including bullying and aggressive behavior.
Scientists have discovered a statistical relationship between brain levels of the enzyme monoamine oxidase A (MAO) A and aggressive personality in healthy non-violent volunteers. The study found that higher MAO A activity was associated with less aggressive behavior, while lower MAO A activity was linked to more aggressive tendencies.
A recent literature review and formal classification of sleep-related disorders associated with abnormal sexual behaviors and experiences have been published. These disorders, referred to as 'sleepsex' or 'sexsomnia', can cause disturbing and embarrassing symptoms, and may lead to delays in seeking help due to fear of judgment.
Two studies found that exposure to even cartoonish children's violent video games increases aggressive behavior in children and adolescents. A third study showed that frequent play of violent video games leads to a more aggressive worldview and behaviors in school-aged children. Both studies support the idea that violent video game exp...
Researchers found genetic markers associated with lower scores in tests measuring anger, hostility, and aggression in women. The study identified two alterations in the serotonin receptor 2C gene promoter region linked to increased risk of hypertension, glucose metabolism, and heart diseases.
A new study finds that reading violent scriptures increases aggressive behavior, especially among believers. The study, led by University of Michigan social psychologist Brad Bushman, found that participants who read passages from the Bible exhibited increased aggression when told that God had sanctioned their actions.
Male crayfish exhibit pseudo-copulation behavior, mirroring normal sexual copulation, to reduce aggression and secure social dominance. This mutual behavior is crucial for the survival of subordinate males, highlighting its evolutionary significance in invertebrates.