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Signalers vs. strong silent types: Sparrows exude personalities during fights

By Guest PostDecember 19, 2013Natureaggressive behavior, aggressive intentions, aggressive situation, birds, caglar akcay, discovery park, elizabeth campbell, flipping the bird, mate, melospiza melodia, michael beecher, offspring, predator, seattle, signaling behaviors, song sparrows, university of washington, wild animal

Like humans, some song sparrows are more effusive than others, at least when it comes to defending their territories. New findings from the University of Washington show that consistent individual differences exist not only for how aggressive individual song sparrows are but also for how much they use their signals to communicate their aggressive intentions.

The findings, published online Dec. 4 in Proceedings of the Royal Society B, show that while many birds signal their intentions clearly, other “strong silent types” go immediately to aggressive behavior and ultimately attack without first signaling their intentions. (more…)

Violent Video Games: More Playing Time Equals More Aggression

By Guest PostDecember 20, 2012General, Healthaggression, aggressive behavior, brad bushman, brightness, call of duty, competitive reaction, computer screen, condemned 2, dirt2, experimental evidence, france, french university students, Germany, grenoble, laurent begue, measure aggression, michael scharkow, negative effects, nonviolent video game, over time, playing, pure, s3k superbike, the club, time task, university of hohenheim, violent video games, visual perception, youssef hasan

COLUMBUS, Ohio – A new study provides the first experimental evidence that the negative effects of playing violent video games can accumulate over time.

Researchers found that people who played a violent video game for three consecutive days showed increases in aggressive behavior and hostile expectations each day they played. Meanwhile, those who played nonviolent games showed no meaningful changes in aggression or hostile expectations over that period. (more…)

Why Married Men Tend to Behave Better

By Guest PostDecember 7, 2010Cultureaggressive behavior, alexandra burt, antisocial, antisocial behavior, brian hicks, genetically informative, marriage, married twin, matrimony, men, researchers, s alexandra burt, social bonding, unmarried twin

S. Alexandra Burt, associate professor of psychology and behavioral geneticist. Image credit: Michigan State University

EAST LANSING, Mich. — Researchers have long argued that marriage generally reduces illegal and aggressive behaviors in men. It remained unclear, however, if that association was a function of matrimony itself or whether less “antisocial” men were simply more likely to get married.

The answer, according to a new study led by a Michigan State University behavior geneticist, appears to be both.

In the December issue of the Archives of General Psychiatry, S. Alexandra Burt and colleagues found that less antisocial men were more likely to get married. Once they were wed, however, the marriage itself appeared to further inhibit antisocial behavior.

“Our results indicate that the reduced rate of antisocial behavior in married men is more complicated than we previously thought,” said Burt, associate professor of psychology. “Marriage is generally good for men, at least in terms of reducing antisocial behavior, but the data also indicate that it’s not random who enters into the state of marriage.” (more…)

Tag Archives: aggressive behavior

Signalers vs. strong silent types: Sparrows exude personalities during fights

Violent Video Games: More Playing Time Equals More Aggression

Why Married Men Tend to Behave Better