Being in a group makes some people lose touch with their personal moral beliefs, researchers find

June 12, 2014 by Anne Trafton
Credit: Thinkstock

When people get together in groups, unusual things can happen—both good and bad. Groups create important social institutions that an individual could not achieve alone, but there can be a darker side to such alliances: Belonging to a group makes people more likely to harm others outside the group.

"Although humans exhibit strong preferences for equity and moral prohibitions against harm in many contexts, people's priorities change when there is an 'us' and a 'them,'" says Rebecca Saxe, an associate professor of cognitive neuroscience at MIT. "A group of people will often engage in actions that are contrary to the private moral standards of each individual in that group, sweeping otherwise decent individuals into 'mobs' that commit looting, vandalism, even physical brutality."

Several factors play into this transformation. When people are in a group, they feel more anonymous, and less likely to be caught doing something wrong. They may also feel a diminished sense of personal responsibility for collective actions.

Saxe and colleagues recently studied a third factor that cognitive scientists believe may be involved in this group dynamic: the hypothesis that when people are in groups, they "lose touch" with their own morals and beliefs, and become more likely to do things that they would normally believe are wrong.

In a study that recently went online in the journal NeuroImage, the researchers measured brain activity in a part of the brain involved in thinking about oneself. They found that in some people, this activity was reduced when the subjects participated in a competition as part of a group, compared with when they competed as individuals. Those people were more likely to harm their competitors than people who did not exhibit this decreased brain activity.

"This process alone does not account for intergroup conflict: Groups also promote anonymity, diminish , and encourage reframing harmful actions as 'necessary for the greater good.' Still, these results suggest that at least in some cases, explicitly reflecting on one's own personal moral standards may help to attenuate the influence of 'mob mentality,'" says Mina Cikara, a former MIT postdoc and lead author of the NeuroImage paper.

Group dynamics

Cikara, who is now an assistant professor at Carnegie Mellon University, started this research project after experiencing the consequences of a "mob mentality": During a visit to Yankee Stadium, her husband was ceaselessly heckled by Yankees fans for wearing a Red Sox cap. "What I decided to do was take the hat from him, thinking I would be a lesser target by virtue of the fact that I was a woman," Cikara says. "I was so wrong. I have never been called names like that in my entire life."

The harassment, which continued throughout the trip back to Manhattan, provoked a strong reaction in Cikara, who isn't even a Red Sox fan.

"It was a really amazing experience because what I realized was I had gone from being an individual to being seen as a member of 'Red Sox Nation.' And the way that people responded to me, and the way I felt myself responding back, had changed, by virtue of this visual cue—the baseball hat," she says. "Once you start feeling attacked on behalf of your group, however arbitrary, it changes your psychology."

Cikara, then a third-year graduate student at Princeton University, started to investigate the neural mechanisms behind the that produce bad behavior. In the new study, Cikara, Saxe (who is also an associate member of MIT's McGovern Institute for Brain Research), former Harvard University graduate student Anna Jenkins, and former MIT lab manager Nicholas Dufour focused on a part of the brain called the medial prefrontal cortex. When someone is reflecting on himself or herself, this part of the brain lights up in functional magnetic resonance imaging (fMRI) brain scans.

A couple of weeks before the study participants came in for the experiment, the researchers surveyed each of them about their social-media habits, as well as their moral beliefs and behavior. This allowed the researchers to create individualized statements for each subject that were true for that person—for example, "I have stolen food from shared refrigerators" or "I always apologize after bumping into someone."

When the subjects arrived at the lab, their brains were scanned as they played a game once on their own and once as part of a team. The purpose of the game was to press a button if they saw a statement related to social media, such as "I have more than 600 Facebook friends."

The subjects also saw their personalized moral statements mixed in with sentences about social media. Brain scans revealed that when subjects were playing for themselves, the medial prefrontal cortex lit up much more when they read the moral statements than the statements, consistent with previous findings. However, during the team competition, some people showed much lower medial prefrontal cortex activation when they saw the moral statements.

Those people also turned out to be much more likely to harm members of the competing group during a task performed after the game. Each subject was asked to select photos that would appear with the published study, from a set of four photos apiece of two teammates and two members of the opposing team. The subjects with suppressed medial prefrontal cortex activity chose the least flattering photos of the opposing team members, but not of their own teammates.

"This is a nice way of using neuroimaging to try to get insight into something that behaviorally has been really hard to explore," says David Rand, an assistant professor of psychology at Yale University who was not involved in the research. "It's been hard to get a direct handle on the extent to which people within a group are tapping into their own understanding of things versus the group's understanding."

Getting lost

The researchers also found that after the game, people with reduced medial prefrontal cortex activity had more difficulty remembering the moral statements they had heard during the game.

"If you need to encode something with regard to the self and that ability is somehow undermined when you're competing with a group, then you should have poor memory associated with that reduction in signal, and that's exactly what we see," Cikara says.

Cikara hopes to follow up on these findings to investigate what makes some people more likely to become "lost" in a group than others. She is also interested in studying whether people are slower to recognize themselves or pick themselves out of a photo lineup after being absorbed in a activity.

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Nik_2213
not rated yet Jun 12, 2014
Perhaps this could be used to gauge when 'cult' and 'gang' members have been cleft from their entrainment ? Be interesting to see if there is a cross-over with hypnotic susceptibility...
katesisco
4.5 / 5 (2) Jun 12, 2014
Group belonging make the cost of maintaining personal moral standards too high.
krundoloss
4.5 / 5 (2) Jun 12, 2014
Katesisco is correct.

This phenomenon has many aspects, but at its core is survival. If you are in a group and they have decided to do something, and you go against the group, then you are outcast or even killed for doing so. Imagine being in a gang, they wont let you leave the gang, so therefore your own morals go out the door in order to survive. Could you go back in time and stop slavery? No, you would likely be killed. Could you stop Germany from starting WW2? No, you would probably be killed.

The idea of "going along with the group" is just a deep rooted, ancient survival mechanism. I personally never liked the group dynamic. I can remember being in third grade and said that I don't believe in god, and all the other children kept saying "You are going to hell". I wondered about this, how they suddenly would think of me in a bad way, and I questioned how "Christian" they were, by not actually thinking, just regurgitating what they feel socially obligated to agree with...
Nik_2213
1 / 5 (1) Jun 13, 2014
This effect is also the bane of 'Focus Groups'; Windows 8, anyone ??

I was infamous at work for my knack of pointing out ghastly flaws in sweeping proposals, usually after the rest of the group had fawned on our 'flavour of the month'. It helped that I'm an agnostic so-and-so. Also, as the 'Calibration Guy', I reported to 'Engineering', so stood outside my work-place's internal politics and peer pressures...
Semmster
1 / 5 (1) Jun 15, 2014
Never did like crowds.
loveJustice
not rated yet Jun 16, 2014
In the first century, God inspired Jesus' apostle Paul to write: "Bad associations corrupt good morals." (1 Corinthians 15:33) Jesus's own name means "Jehovah is salvation", and the name Jehovah means "He who causes to become". Jesus worshipped Jehovah God and taught the first century Christians to do the same. But the clergy has falsely taught people to worship a trinity and to give their allegiance to corrupt governments, with whom they have colluded to maintain power. They have blessed wars among nations whose peoples are all told that they are going to war in the name of Jesus—who was called the "Prince of Peace" by the early Christians!

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