Washington [US], June 9 (ANI): 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 behaviour exhibited by a third party. Thus, the motivation driving punishment might be intrinsic as opposed to learned.
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Punishment of antisocial behaviour is found in only humans and is universal across cultures. However, the development of moral behaviour 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 the 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.”
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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 behaviours.
“The observation of this behaviour in very young children indicates that humans may have acquired behavioural tendencies toward moral behavior during the course of evolution,” says Kanakogi. “Specifically, the punishment of antisocial behaviour 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. (ANI)
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