Atlanta: The human response to unfairness evolved in order to support long-term cooperation, according to a research team from Georgia State University and Emory University.

New York: Exposure to verbal and physical aggression between parents may hurt a child’s ability to identify and control emotions, according to a longitudinal study led by NYU’s Steinhardt School of Culture, Education, and Human Development.

Ann Arbor: One in five men in US reports violence towards their spouse or significant others, says a new nationally-representative study by the University of Michigan.

New York: With the longstanding debate over whether violent movies cause real world violence as a backstop, a study published today in PLOS One found that each person’s reaction to violent images depends on that individual’s brain circuitry, and on how aggressive they were to begin with.

Indianapolis: What do skipping school, failing tests and engaging in risky sexual behavior have in common? Lots…, according to Indiana University researchers who combed through 80,000 daily reports written by 14- to 17-year-old girls.

Washington: Saying thank you has been among the commonest of cultural civilities for centuries. Now new research offers the first evidence that expressions of gratitude go beyond mere etiquette and provide real social benefit.