Past suffering can affect future praise

"Historically, psychology and philosophy have had a stronger focus on the 'dark' side of human behavior, such as moral wrongdoing, and less attention has been placed on studying the 'light' side of human behavior, such as acts of altruism," said Robbins, the principal investigator of the project. "This research aims to provide a better understanding of a relatively neglected aspect of human psychology, the human mind, and the human condition, which concerns how people process and react to positive behaviors, such as giving praise."

The research is based on survey results from a total of 974 participants. It builds upon the researchers' previous finding that people tend to think of an adult who has committed a crime as less culpable, and less deserving of punishment, when told that the accused had suffered serious harm in childhood.

Robbins said the team's findings are also relevant to thinking about criminal sentencing, particularly in capital trials. Defense counsel often presents evidence of clients' suffering and victimization in their early years, and the authors' previous and current studies support this practice. He added the findings point to a broader issue about how people judge others without knowing who they really are as individuals, since knowing what a person has experienced in life can alter how we assess their good and bad deeds.

"It's important that we pay attention to human beings not just as creatures that do bad things to each other, but also as creatures that do good things for each other," Robbins said. "Part of what's remarkable about our species is our capacity to behave in prosocial ways, such as cooperating with and helping others, as well as antisocial ways, such as competing with and harming them."