Moralization and extremism robustly amplify myside sharing

Marie, A, Altay, S., et al.

PNAS Nexus, Volume 2, Issue 4, April 2023.

Abstract

We explored whether moralization and attitude extremity may amplify a preference to share politically congruent (“myside”) partisan news and what types of targeted interventions may reduce this tendency. Across 12 online experiments (N = 6,989), we examined decisions to share news touching on the divisive issues of gun control, abortion, gender and racial equality, and immigration. Myside sharing was systematically observed and was consistently amplified when participants (i) moralized and (ii) were attitudinally extreme on the issue. The amplification of myside sharing by moralization also frequently occurred above and beyond that of attitude extremity. These effects generalized to both true and fake partisan news. We then examined a number of interventions meant to curb myside sharing by manipulating (i) the audience to which people imagined sharing partisan news (political friends vs. foes), (ii) the anonymity of the account used (anonymous vs. personal), (iii) a message warning against the myside bias, and (iv) a message warning against the reputational costs of sharing “mysided” fake news coupled with an interactive rating task. While some of those manipulations slightly decreased sharing in general and/or the size of myside sharing, the amplification of myside sharing by moral attitudes was consistently robust to these interventions. Our findings regarding the robust exaggeration of selective communication by morality and extremism offer important insights into belief polarization and the spread of partisan and false information online.

General discussion

Across 12 experiments (N = 6,989), we explored US participants’ intentions to share true and fake partisan news on 5 controversial issues—gun control, abortion, racial equality, sex equality, and immigration—in social media contexts. Our experiments consistently show that people have a strong sharing preference for politically congruent news—Democrats even more so than Republicans. They also demonstrate that this “myside” sharing is magnified when respondents see the issue as being of “absolute moral importance”, and when they have an extreme attitude on the issue. Moreover, issue moralization was found to amplify myside sharing above and beyond attitude extremity in the majority of the studies. Expanding prior research on selective communication, our work provides a clear demonstration that citizens’ myside communicational preference is powerfully amplified by their moral and political ideology (18, 19, 39–43).

By examining this phenomenon across multiple experiments varying numerous parameters, we demonstrated the robustness of myside sharing and of its amplification by participants’ issue moralization and attitude extremity. First, those effects were consistently observed on both true (Experiments 1, 2, 3, 5a, 6a, 7, and 10) and fake (Experiments 4, 5b, 6b, 8, 9, and 10) news stories and across distinct operationalizations of our outcome variable. Moreover, myside sharing and its amplification by issue moralization and attitude extremity were systematically observed despite multiple manipulations of the sharing context. Namely, those effects were observed whether sharing was done from one's personal or an anonymous social media account (Experiments 5a and 5b), whether the audience was made of political friends or foes (Experiments 6a and 6b), and whether participants first saw intervention messages warning against the myside bias (Experiments 7 and 8), or an interactive intervention warning against the reputational costs of sharing mysided falsehoods (Experiments 9 and 10).

The research is here.

The influence of moral stories on kindergarteners’ sharing behaviour

Zhuojun Yao and Robert Enright
Early Child Development and Care
July 19, 2018

Abstract

The current study investigated the effect of moral stories in promoting kindergarteners’ sharing behaviour. One hundred eight children were randomly assigned to one of three conditions: two experimental conditions (a moral story with a sharing model and good consequences and a moral story with a selfish model and bad consequences) and a control condition (a nonmoral story). The results showed that children in the experimental groups shared more than children in the control group. In addition, comparing the two experimental groups, children in the sharing-good consequences condition shared more than children in the selfish-bad consequences condition. Further, interviews were conducted to provide in-depth understanding of common and different influences of the two moral stories on children’s sharing behaviour. The implications for research and practice were discussed.

The article is here.

The Value of Sharing Information: A Neural Account of Information Transmission

Elisa C. Baek, Christin Scholz, Matthew Brook O’Donnell, & Emily Falk
Psychological Science
May 2017

Abstract

Humans routinely share information with one another. What drives this behavior? We used neuroimaging to test an account of information selection and sharing that emphasizes inherent reward in self-reflection and connecting with other people. Participants underwent functional MRI while they considered personally reading and sharing New York Times articles. Activity in neural regions involved in positive valuation, self-related processing, and taking the perspective of others was significantly associated with decisions to select and share articles, and scaled with preferences to do so. Activity in all three sets of regions was greater when participants considered sharing articles with other people rather than selecting articles to read themselves. The findings suggest that people may consider value not only to themselves but also to others even when selecting news articles to consume personally. Further, sharing heightens activity in these pathways, in line with our proposal that humans derive value from self-reflection and connecting to others via sharing.

The article is here.

Probing the relationship between brain activity and moral judgments of children

ScienceCodex News
Originally published March 9, 2016

Here is an excerpt:

To determine whether the early automatic or later controlled neural activity predicted actual moral behavior, the researchers then assessed the children's generosity based on how many stickers they were willing to share with an anonymous child. They then correlated the children's generosity with individual differences in brain activity generated during helping versus harming scenes. Only differences in brain signals associated with deliberate neural processing predicted the children's sharing behavior, suggesting that moral behavior in children depends more on controlled reflection than on an immediate emotional response.

The article is here.

Religious upbringing associated with less altruism, study finds

By Susie Allen
University of Chicago News
Originally released November 5, 2015

Here is an excerpt:

Consistent with previous studies, in general the children were more likely to share as they got older. But children from households identifying as Christian and Muslim were significantly less likely than children from non-religious households to share their stickers. The negative relation between religiosity and altruism grew stronger with age; children with a longer experience of religion in the household were the least likely to share.

Children from religious households favored stronger punishments for anti-social behavior and judged such behavior more harshly than non-religious children. These results support previous studies of adults, which have found religiousness is linked with punitive attitudes toward interpersonal offenses.

The entire article is here. 

Friends or foes: Is empathy necessary for moral behavior?

Jean Decety and Jason M. Cowell
Perspectives on Psychological Science
2014, Vol. 9(5) 525 –537

Abstract

In the past decade, a flurry of empirical and theoretical research on morality and empathy has taken place, and interest and usage in the media and the public arena have increased. At times, in both popular culture and academia, morality and empathy are used interchangeably, and quite often the latter is considered to play a foundational role for the former. In this article, we argue that although there is a relationship between morality and empathy, it is not as straightforward as apparent at first glance. Moreover, it is critical to distinguish among the different facets of empathy (emotional sharing, empathic concern, and perspective taking), as each uniquely influences moral cognition and predicts differential outcomes in moral behavior. Empirical evidence and theories from evolutionary biology as well as developmental, behavioral, and affective and social neuroscience are comprehensively integrated in support of this argument. The wealth of findings illustrates a complex and equivocal relationship between morality and empathy. The key to understanding such relations is to be more precise on the concepts being used and, perhaps, abandoning the muddy concept of empathy.

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Is Empathy a Necessary Concept?

To wrap up on a provocative note, it may be advanta-geous in the future for scholars interested in the science of morality to refrain from using the catch-all term of empathy, which applies to a myriad of processes and phenomena and, as a result, yields confusion in both understanding and predictive ability. In both academic and applied domains—such medicine, ethics, law, and policy—empathy has become an enticing, but muddy, notion, potentially leading to misinterpretation. If ancient Greek philosophy has taught us anything, it is that when a concept is attributed with so many meanings, it is at risk for losing function.

The entire article is here.