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Under stress, study finds an observer is more likely to help the victim than to punish the perpetrator

Under stress, an observer is more likely to help the victim than to punish the perpetrator
Acute stress decreased the third party's willingness to punish the violator and the severity of the punishment, and increased their willingness to help the victim. Created with Adobe Illustrator. Credit: Huagen Wang (CC-BY 4.0, creativecommons.org/licenses/by/4.0/)

Being stressed while witnessing injustice may push your brain towards altruism, according to a study published on May 14 in the journal PLOS Biology by Huagen Wang from Beijing Normal University, China, and colleagues.

It takes more cognitive effort to punish others than it does to help them. Studies show that when witnessing an act of injustice while stressed, people tend to behave selflessly, preferring to help the victim than to punish the offender. This aligns with theories proposing that distinct brain networks drive intuitive, fast decisions and deliberate, slow decisions, but precisely how a bystander's brain makes the trade-off between helping and punishing others in is unclear.

To better understand the driving third-party intervention in the face of injustice, Wang and colleagues recruited 52 participants to complete a simulated third-party intervention task in an fMRI () scanner, where they watched someone decide how to distribute an endowment of cash between themselves and another character, who had to passively accept the proposal.

The participant then decided whether to take money away from the first character, or give money to the second. Roughly half of these participants submerged their hands in ice water for three minutes right before starting the task to induce stress.

Acute stress affected decision-making in extremely unfair situations, where the participant witnessed someone keep the vast majority of the cash they were supposed to split with someone else. The researchers observed higher (DLPFC) activation—a brain region typically linked to mentalizing and —when stressed participants chose to punish an offender. Computational modeling revealed that reduces bias towards punishment, raising the likelihood that someone will help a victim instead.

The authors state that their findings suggest that punishing others requires more deliberation, cognitive control, and reliance on calculations than helping a victim. These results align with a growing body of evidence suggesting that stressed individuals tend to act more cooperatively and generously, perhaps because people devote more of their cognitive resources towards deciding how to help the victim, rather than punishing the offender.

The authors add, "Acute stress shifts third-party intervention from punishing the perpetrator to helping the victim."

More information: Wang H, Wu X, Xu J, Zhu R, Zhang S, Xu Z, et al. (2024) Acute stress during witnessing injustice shifts third-party interventions from punishing the perpetrator to helping the victim, PLoS Biology (2024). DOI: 10.1371/journal.pbio.3002195

Journal information: PLoS Biology
Citation: Under stress, study finds an observer is more likely to help the victim than to punish the perpetrator (2024, May 16) retrieved 21 June 2024 from https://medicalxpress.com/news/2024-05-stress-victim-perpetrator.html
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