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Home NEWS Science News Chemistry

Are we born with a moral compass?

Bioengineer by Bioengineer
June 9, 2022
in Chemistry
Reading Time: 3 mins read
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Osaka, Japan – For millennia, philosophers have pondered the question of whether humans are inherently good. But now, researchers from Japan have found that young infants can make and act on moral judgments, shedding light on the origin of morality.

Movie

Credit: Yasuhiro Kanakogi

Osaka, Japan – For millennia, philosophers have pondered the question of whether humans are inherently good. But now, researchers from Japan have found that young infants can make and act on moral judgments, shedding light on the origin of morality.

In a study recently published in Nature Human Behaviour, researchers from Osaka University, in collaboration with Otsuma Women’s University, NTT Communication Science Laboratories, and the University of Tokyo, revealed that 8-month-old infants can punish antisocial behavior exhibited by a third party. Thus, the motivation driving punishment might be intrinsic as opposed to learned.

Punishment of antisocial behavior is found in only humans, and is universal across cultures. However, the development of moral behavior is not well understood. Further, it can be very difficult to examine decision-making and agency in infants, which the researchers at Osaka University aimed to address.

“Morality is an important but mysterious part of what makes us human,” says lead author of the study Yasuhiro Kanakogi. “We wanted to know whether third-party punishment of antisocial others is present at a very young age, because this would help to signal whether morality is learned.”

To tackle this problem, the researchers developed a new research paradigm. First, they familiarized infants with a computer system in which animations were displayed on a screen. The infants could control the actions on the screen using a gaze-tracking system such that looking at an object for a sufficient period of time led to the destruction of the object. The researchers then showed a video in which one geometric agent appeared to “hurt” another geometric agent, and watched whether the infants “punished” the antisocial geometric agent by gazing at it.

“The results were surprising,” says Kanakogi.  “We found that preverbal infants chose to punish the antisocial aggressor by increasing their gaze towards the aggressor.”

To verify their findings, the researchers conducted three control experiments to exclude alternative interpretations of the infants’ gazing behaviors.

“The observation of this behavior in very young children indicates that humans may have acquired behavioral tendencies toward moral behavior during the course of evolution,” says Kanakogi. “Specifically, the punishment of antisocial behavior may have evolved as an important element of human cooperation.”

This new paradigm for studying decision-making in a social context could be an important turning point in infant cognitive research. In particular, while much previous research on infant cognition has used observations from third parties, and thus examined passive responses to events, the eye-gaze paradigm allows for the observation of active decision-making in infants. Thus, this research model may be useful in uncovering additional information about cognitive abilities in preverbal infants.

###

The article, “Third-party punishment by preverbal infants” was published in Nature Human Behaviour at DOI: https://doi.org/10.1038/s41562-022-01354-2

 

About Osaka University

Osaka University was founded in 1931 as one of the seven imperial universities of Japan and is now one of Japan’s leading comprehensive universities with a broad disciplinary spectrum. This strength is coupled with a singular drive for innovation that extends throughout the scientific process, from fundamental research to the creation of applied technology with positive economic impacts. Its commitment to innovation has been recognized in Japan and around the world, being named Japan’s most innovative university in 2015 (Reuters 2015 Top 100) and one of the most innovative institutions in the world in 2017 (Innovative Universities and the Nature Index Innovation 2017). Now, Osaka University is leveraging its role as a Designated National University Corporation selected by the Ministry of Education, Culture, Sports, Science and Technology to contribute to innovation for human welfare, sustainable development of society, and social transformation.

Website: https://resou.osaka-u.ac.jp/en

 

 

 

 



Journal

Nature Human Behaviour

DOI

10.1038/s41562-022-01354-2

Method of Research

Experimental study

Subject of Research

People

Article Title

Third-party punishment by preverbal infants

Article Publication Date

9-Jun-2022

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